JP3195111U - Full trailer - Google Patents

Abstract

A full trailer that can be used as a moving tank for a small amount of dangerous goods is provided. A full trailer 2 for transporting a flammable liquid less than a specified quantity, a tank 20 having a capacity of less than 1000 liters for containing the flammable liquid, a carriage 10 on which the tank is mounted, and provided on both sides of the carriage. A pair of traveling wheels 11 provided therein, an inlet unit 24 including an openable and closable inlet provided in the tank and a safety valve, and an oil supply device 30 that pumps flammable liquid contained in the tank and supplies it to an oil supply target. The center of gravity is on the axle 12 of the pair of running wheels. [Selection] Figure 2

Description

  The present invention relates to a trailer, and more particularly to a full trailer that can be used as a moving tank for a small amount of dangerous goods.

  A trailer is a towed vehicle towed by a towed vehicle. Some trailers are equipped with various special equipment and structures depending on the object to be loaded. For example, a “tank lorry” used for transporting flammable liquids (gasoline, kerosene, light oil, heavy oil, etc.), which is one of the dangerous goods stipulated by the Fire Service Act, is a trailer equipped with special equipment and special structures. (Patent Document 1).

  Trailers are generally classified into “semi-trailers” and “full trailers”. The semi-trailer is a trailer having a structure or a type in which a part of the load of the load is borne by the towed vehicle, and the full trailer is a trailer having a structure or a type in which the entire load of the load is borne by itself.

  Here, according to the Fire Service Act (Act No. 186 of July 24, 1948), store dangerous goods in excess of the specified quantity in a place other than the storage place, or a place other than the factory, storage place and handling place. Stipulates that this should not be handled. In addition, it is prescribed that the storage includes a tank (moving tank storage) fixed to the vehicle, and many tank trucks correspond to the moving tank storage.

  On the other hand, the Fire Service Law stipulates that the technical standards for the location, structure, and facilities of places where dangerous goods (small quantities of dangerous goods) less than the specified quantity are stored or handled are defined by municipal regulations. In other words, there is no nationwide standard for storage for storing or handling small quantities of dangerous goods, and it is left to the judgment of each municipality. Under such circumstances, each municipality has established various ordinances concerning the storage of small quantities of dangerous goods. Many of these regulations include provisions relating to tanks (moving tanks) fixed to vehicles that store or handle small quantities of dangerous goods.

Japanese Patent Laid-Open No. 10-167378

  Currently, there is no full trailer available as a transport tank for small quantities of dangerous goods.

  An object of the present invention is to provide a full trailer that can be used as a moving tank for small quantities of dangerous goods.

  The full trailer of the present invention is a full trailer for transporting a flammable liquid less than a specified quantity, and a tank having a capacity of less than 1000 liters in which the flammable liquid is accommodated, a carriage on which the tank is mounted, and the carriage A pair of traveling wheels provided on both sides of the tank, an openable / closable inlet provided in the tank, an electric pump for pumping out the flammable liquid contained in the tank, and pumped out by the electric pump A nozzle that discharges the flammable liquid; and a measuring instrument that displays the amount of the flammable liquid discharged from the nozzle, the center of gravity being on the axle of the pair of traveling wheels.

  In one aspect of the present invention, a safety valve is provided that opens the inside of the tank to the atmosphere when the internal pressure of the tank becomes higher than a predetermined pressure.

  In another aspect of the present invention, a protective frame surrounding at least the inlet and the safety valve is provided.

  In another aspect of the present invention, an emergency closing valve for forcibly stopping the discharge of the flammable liquid from the nozzle is provided.

  In another aspect of the present invention, there is provided a change-over switch that selectively connects either the battery or the commercial power source mounted on the towing vehicle to which the full trailer is coupled to the electric pump.

  In another aspect of the present invention, there is provided a brake that brakes the traveling wheel in conjunction with a foot brake provided in a towed vehicle to which the full trailer is connected.

  In another aspect of the present invention, there is provided a brake hose that is connected to the towed vehicle and transmits an operating pressure supplied from the towed vehicle to the brake.

  In another aspect of the present invention, a brake lamp that is lit during operation of the brake is provided.

  In another aspect of the present invention, an earth wire for grounding the full trailer and a reel capable of winding and feeding the earth wire are provided.

  In another aspect of the present invention, a connecting portion that extends from the carriage and has a connecting ring at one end thereof, and a swiveling wheel that is rotatably provided at the connecting portion are provided.

  According to the present invention, a full trailer that can be used as a moving tank for a small amount of dangerous goods is realized.

It is a schematic diagram which shows an example of embodiment of the full trailer to which this invention was applied. It is a side view of the full trailer shown by FIG. It is a top view of the full trailer shown by FIG. FIG. 2 is a rear view of the full trailer shown in FIG. 1. It is a schematic diagram which shows an example of the tow vehicle which pulls the full trailer to which this invention was applied.

  Hereinafter, an example of a full trailer to which the present invention is applied will be described. As shown in FIG. 1, the full trailer 2 according to this embodiment is a full trailer that is towed by being connected to a towing vehicle (in this embodiment, a biaxial truck 1). That is, in the state shown in FIG. 1, the full trailer 2 bears all the loads of the full trailer 2. In other words, the truck 1 does not bear the load of the full trailer 2 at all. Moreover, the full trailer 2 which concerns on this embodiment is a full trailer used for conveyance of less than the designated quantity of flammable liquids. That is, it is a full trailer that can be used as a moving tank for small quantities of dangerous goods.

  As shown in FIGS. 2 to 4, the full trailer 2 according to the present embodiment includes a carriage 10 and a tank 20 mounted on the carriage 10. As shown in FIGS. 2 and 4, a pair of traveling wheels 11 are provided on both sides of the carriage 10. The pair of traveling wheels 11 are fixed to both ends of an axle 12 that is rotatably held by the carriage 10, and the center of gravity of the full trailer 2 is on the axle.

  As shown in FIGS. 2 and 3, the front end of the carriage 10 is provided with a connecting portion 13 (sometimes referred to as “drawbar”) connected to the truck 1 (FIG. 1). The connecting portion 13 has a substantially isosceles triangular appearance as a whole in the plan view shown in FIG. 3. Specifically, the connecting portion 13 includes two connecting shafts 13a and 13b. One end of each connecting shaft 13a and 13b is fixed to the front end of the carriage 10, while the other end is a common connecting fitting 13c. It is fixed to.

  As shown in FIGS. 2 and 3, a connecting ring (“Lunette eye”) connected to a pulling ring (also referred to as “pintle hook”) included in the track 1 (FIG. 1) is provided at the end of the connecting metal 13 c. 14) is provided. Further, a swivel wheel 15 is provided on the lower surface of the connection fitting 13c.

  As shown in FIGS. 2 to 4, the tank 20 is formed in a cylindrical shape having a substantially elliptical cross section, and its capacity is less than 1000 liters. This tank 20 contains less than a specified quantity of flammable liquid. Here, the designated quantity of kerosene and light oil belonging to the second petroleum is 1000 liters. Therefore, for example, kerosene or light oil of less than 1000 liters is stored in the tank 20. In addition, the partition is not provided in the inside of the tank 20, Therefore, only the same kind of flammable liquid is accommodated in the tank 20. FIG. In other words, different types of flammable liquids are not simultaneously stored in the tank 20. In the following description, it is assumed that the flammable liquid stored in the tank 20 is light oil.

  As shown in FIG. 3, a circular inlet (not shown) is formed on the upper surface of the tank 20, and a disc-shaped opening / closing lid 21 is provided at the inlet. The opening / closing lid 21 is pivotably attached around the injection port, and opens and closes the injection port by a rotating operation. That is, the tank 20 is provided with an inlet that can be opened and closed, and the inlet 20 is opened to inject light oil into the tank 20. A knob 21 a is provided at the center of the opening / closing lid 21. When the inlet 21 is closed by the opening / closing lid 21 and the knob 21a is rotated clockwise, the opening / closing lid 21 is fixed to the inlet. On the other hand, when the knob 21a is rotated counterclockwise, the opening / closing lid 21 is fixed to the inlet, and the inlet can be opened. When the opening / closing lid 21 is fixed to the injection port, the injection port is sealed.

  A safety valve 22 is provided in the vicinity of the opening / closing lid (injection port) 21. The safety valve 22 is an automatic opening / closing valve, and automatically opens when the internal pressure of the tank 20 becomes higher than a predetermined pressure, thereby opening the inside of the tank 20 to the atmosphere. That is, the internal pressure of the tank 20 is always maintained at a pressure lower than a predetermined pressure.

  The inlet, the opening / closing lid 21 and the safety valve 22 are provided on a common circular base 23 and integrated. In other words, the inlet, the opening / closing lid 21 and the safety valve 22 are unitized. Therefore, in the following description, the inlet, the opening / closing lid 21, the safety valve 22, and the circular base 23 may be collectively referred to as “injector unit 24”. The circular base 23 of the inlet unit 24 is fitted into a mounting hole formed on the upper surface of the tank 20, and is fixed around the mounting hole by bolts and nuts. However, there is also an embodiment in which the circular base 23 is fixed around the mounting hole by a rivet or other fixing means.

  A protective frame 25 surrounding the inlet unit 24 is provided on the upper surface of the tank 20. That is, at least the opening / closing lid (inlet) 21 and the safety valve 22 are surrounded by the protective frame 25. The protective frame 25 is formed of a metal plate and surrounds three sides of the inlet unit 24 including the opening / closing lid (inlet) 21 and the safety valve 22. As shown in FIGS. 2 and 4, the height of the protective frame 25 is higher than the height of the tallest knob 21 a in the inlet unit 24.

  As shown in FIGS. 2 to 4, an oil supply device 30 is mounted behind the tank 20, and a ladder 40 straddling the carriage upper surface and the tank upper surface is mounted in front of the tank 20. As shown in FIGS. 2 and 3, a power supply switching box 41 is mounted on one side of the ladder 40, and a fire extinguisher 42 and an earth reel 43 are mounted on the other side of the ladder 40. The ladder 40 is mainly used for opening / closing and inspecting the inlet and for inspecting the inside of the tank 20.

  The oil supply device 30 includes an electric pump, a meter, a hose 31, a nozzle (oil supply nozzle 32), and the like. When the electric pump is operated, the light oil stored in the tank 20 is pumped out by the electric pump. The light oil pumped out by the electric pump is sent (pressure fed) to the oil supply nozzle 32 via the hose 31 and discharged from the tip of the oil supply nozzle 32. The meter displays the amount of light oil discharged from the oil supply nozzle 32. However, in the present embodiment, the amount of light oil discharged from the electric pump and the amount of light oil discharged from the oil supply nozzle 32 are considered to be the same amount. That is, the meter measures the amount of light oil discharged from the electric pump, and displays the result as the amount of light oil discharged from the oil supply nozzle 32.

  The oil supply nozzle 32 includes a trigger. When the trigger is pulled by an operator, electric power is supplied from the power source to the electric pump, and the electric pump is activated. In this embodiment, two power sources for the electric pump are prepared. One of the power sources is a battery mounted on the truck 1 (FIG. 1) to which the full trailer 2 is connected, and the other one of the power sources is a commercial power source. In this embodiment, one of these two power supplies is selectively connected to the electric pump. This will be specifically described below.

  As shown in FIG. 3, the full trailer 2 is provided with a power supply switching box 41. The power supply switching box 41 is provided with a first output terminal that outputs AC 100V and a second output terminal that outputs DC 24V. The power supply switching box 41 is provided with a first input terminal to which a commercial power supply is connected. This first input terminal is connected to the first output terminal via a circuit in the power supply switching box 41. Yes. Further, the power supply switching box 41 is provided with a second input terminal to which a battery mounted on the track 1 is connected. The second input terminal is connected to the second input terminal via a circuit in the power supply switching box 41. Connected to the output terminal. Therefore, the power supply of the electric pump can be switched to the commercial power supply or the battery by selectively connecting the power cable of the fueling device 30 to the first output terminal or the second output terminal. However, the above-described structure and method for power supply switching are examples. The structure and method for switching the power source may be any structure or method that can selectively connect the power source mounted on the truck 1 and other power sources (not limited to the commercial power source) to the fuel supply device 30. It is not limited to a specific structure or method.

  Below the tank 20, an emergency closing valve that forcibly stops the discharge of light oil from the oil supply nozzle 32 is provided. The emergency closing valve in the present embodiment is a ball valve. When the operation lever 45 shown in FIG. 3 is operated (pulled), a valve body (not shown) rotates, and the tank 20 and the oil supply device ( Communication with the (electric pump) 30 is cut off. Therefore, even if the trigger of the oil supply nozzle 32 (FIGS. 2 and 4) is pulled, the discharge of the light oil is stopped. In the vicinity of the operation lever 45, a guide plate showing how to operate the operation lever 45 is installed.

  The full trailer 2 of the present embodiment shown in FIG. 1 also includes a brake that brakes the traveling wheels 11 in conjunction with a foot brake included in the truck 1 shown in FIG. The foot brake included in the truck 1 is an air brake. When the brake pedal is depressed, compressed air stored in the air tank is supplied to the brake chamber via the brake line. Then, the rod is driven by the pressure (operating pressure) of the compressed air, and the brake shoe is pressed against the brake drum. The full trailer 2 also includes an air brake having the same or substantially the same structure as the air brake included in the truck 1.

  As shown in FIG. 3, two brake hoses 46A and 46B extend from the connecting portion 13, and connection plugs 46a and 46b are provided at the ends of the respective brake hoses 46A and 46B. When these connection plugs 46a and 46b are connected to a coupler provided on the track 1 (FIG. 1), the air brake provided on the full trailer 2 and the air brake provided on the track 1 can be interlocked. Connected. Specifically, when the connection plug 46a is connected to the coupler, the braking air tank provided in the full trailer 2 and the air tank provided in the truck 1 are connected via the brake hose 46A. That is, the braking air tank provided in the full trailer 2 is always maintained in a state where pressure is supplied. When the brake pedal of the truck 1 is depressed in this state, the relay valve provided in the full trailer 2 is activated by the pressure supplied through the brake hose 46B, and compressed air (working pressure) is supplied to the brake chamber of the full trailer 2. Is done.

  As shown in FIG. 4, a lighting device (brake lamp 47) that is lit when the brake of the full trailer 2 is in operation is provided at the rear portion of the carriage 10, and another lighting device (direction) is provided next to the brake lamp 47. Indicator) is provided. When the power receiving connector 44a provided at the tip of the power cable 44 extending from the connecting portion 13 shown in FIG. 3 is connected to the power supply connector provided in the track 1 (FIG. 1), the full trailer 2 is provided. The various lighting equipments and the battery mounted on the truck 1 are electrically connected.

  Further, as shown in FIG. 4, a sign board 48 on which characters “danger” are displayed is provided at the rear of the carriage 10. Further, a dangerous material display plate 49 that indicates the type and maximum quantity of the dangerous materials stored in the tank 20 is provided on the fuel supply device 30.

  The earth reel 43 shown in FIG. 3 is composed of an earth wire and a reel that can wind up and feed out the earth wire. One end of the ground wire is connected to the cart 10, and the other end of the ground wire is connected to an arbitrary grounding facility, whereby the entire full trailer including the cart 10 can be grounded and static electricity can be removed. For example, when light oil is loaded into the tank 20 in the loading facility, the ground wire is pulled out from the reel and connected to the grounding facility provided in the loading facility. When the loading operation is completed, the connection between the ground wire and the ground equipment is released, and the ground wire is wound around the reel.

  Finally, the dimension of each part of the full trailer 2 which concerns on this embodiment is demonstrated. The full length (L) of the full trailer 2 shown in FIG. 2 is 3960 mm. The length (L1) from the axle 12 to the rear end of the full trailer 2 is 1180 mm, and the length (L2) from the axle 12 to the front end of the full trailer 2 is 2780 mm. The full height (H1) of the full trailer 2 is 1730 mm. Further, the full width (W) of the full trailer 2 shown in FIG. 4 is 2080 mm.

  The inner length (L3) of the tank 20 shown in FIG. 3 is 1610 mm, and the inner height (H2) of the tank 20 shown in FIG. 4 is 720 mm. However, all of the above dimensions are examples, and the design can be changed as appropriate.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. For example, the amount of flammable liquid stored in the tank is limited to less than a specified quantity, but the type of flammable liquid is not particularly limited.

  The tow vehicle towing the full trailer according to the present invention is not limited to the biaxial truck, and any tow vehicle that can tow the full trailer according to the present invention safely and legally may be used. . For example, as shown in FIG. 5, the full trailer 2 according to the above-described embodiment can be pulled by a towing vehicle 50 loaded with another tank. Moreover, the pneumatic brake mounted on the full trailer 2 according to the above embodiment can be replaced with a hydraulic brake or other types of brakes.

  The full trailer according to the present invention can be provided with a manual pump instead of the above-described electric pump or together with the electric pump. The protective frame 25 shown in FIG. 3 and the like surrounds three sides of the inlet unit 24, but may surround four sides of the inlet unit 24. The emergency closing valve described above is not limited to a ball valve, and can be replaced with other types of valves.

DESCRIPTION OF SYMBOLS 1 Truck 2 Full trailer 10 Bogie 11 Traveling wheel 12 Axle 13 Connection part 13a Connection shaft 13c Connection metal fitting 14 Connection ring 15 Turning wheel 20 Tank 21 Opening / closing lid 21a Knob 22 Safety valve 23 Circular base 24 Inlet unit 25 Protective frame 30 Oil supply device 31 Hose 32 Refueling nozzle 40 Ladder 41 Power supply switching box 42 Fire extinguisher 43 Earth reel 44 Power cable 44a Power receiving connector 45 Operation lever 46A, 46b Brake hose 46a, 46b Connection plug 47 Brake lamp 48 Marking plate 49 Dangerous goods display board 50 Towing vehicle

Claims (6)

A full trailer that transports less than the specified quantity of flammable liquid,
A tank having a capacity of less than 1000 liters in which the flammable liquid is stored;
A carriage on which the tank is mounted;
A pair of running wheels provided on both sides of the carriage;
An openable and closable inlet provided in the tank;
An electric pump that pumps out the flammable liquid contained in the tank;
A nozzle from which the flammable liquid pumped out by the electric pump is discharged;
A meter for displaying the amount of the flammable liquid discharged from the nozzle,
The center of gravity is on the axle of the pair of running wheels,
Full trailer. The full trailer according to claim 1,
A safety valve that opens the inside of the tank to the atmosphere when the internal pressure of the tank becomes higher than a predetermined pressure;
Full trailer. The full trailer according to claim 2,
Having a protective frame surrounding at least the inlet and the safety valve;
Full trailer. The full trailer according to claim 1,
An emergency closing valve for forcibly stopping discharge of the flammable liquid from the nozzle;
Full trailer. The full trailer according to any one of claims 1 to 4,
Either a battery or a commercial power source mounted on a towing vehicle to which the full trailer is coupled can be selectively connected to the electric pump.
Full trailer. A full trailer according to any one of claims 1 to 5,
A ground wire for grounding the full trailer;
A reel capable of winding and unwinding the ground wire,
Full trailer.

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