KR100250723B1 - Truck for carrying cars - Google Patents

Abstract

PURPOSE: A truck for transporting vehicles simplifies the structure thereof and prevents a damage to vehicle bodies. CONSTITUTION: The front portion of an upper plate(36) is supported to be elevated/lowered by a screw moving shaft(34). The rear end of the upper plate(36) is elevated/lowered and rotated by a link members(42,44) connectedly moved by a cylinder(40). Thus, an obstacle interfered with a door on the side of a cargo room(20) is removed. Therefore, the protection of a loaded vehicles and the getting off of a worker are easily implemented. Particularly, the supporting state of the upper plate(36) is tightly maintained by making the descending position of the upper plate(36) close to a lower plate(28).

Description

Vehicle hauler

The present invention relates to a vehicle transport truck, and more particularly, to an improvement of a transport truck that is capable of effectively transporting two cars.

In general, a car is shipped from a manufacturing company and then supplied to an agency through a predetermined distribution process. In the distribution process, a transport truck for automobiles is used to transport several cars at once.

Such a haul truck can usually load two to seven to eight vehicles, and various forms have been developed according to the number of loaded vehicles. The present invention relates, in particular, to a transport truck suitable for transporting two vehicles, wherein the transport truck referred to below means a truck suitable for loading two vehicles.

Such a haul truck has a cab in which an engine is mounted at the bottom and a cargo compartment provided at the rear of the cab to load a vehicle. The cargo compartment is mainly composed of a multi-layered structure consisting of a lower floor installed at the bottom of the cargo compartment and an upper floor lifted by a separate driving device, so that the vehicle can be loaded on each floor.

1 shows an example of a conventional transport truck. Looking at this schematically, a cargo compartment 2 is provided at the rear of the cab 1, and the cargo compartment 2 has a lower plate 3 on which a vehicle is placed, and an upper plate which is lifted from an upper portion of the lower plate 3, respectively. (4) is provided.

The upper plate 4 is supported by the front frame 5 mounted on both front sides of the lower plate 3 so as to be lifted and rotated at the same time. Both rear sides of the lower plate 3 are provided with rear frames 6 for guiding the lifting and rotation of the upper plate.

In addition, the front frame 5 is provided with a pair of first cylinders 7 having a lower end fixed to the lower plate 3 and placed along the front frame and having a tip connected to the upper plate 4. On one side, a pair of second cylinders 8 are installed to be inclined between the lower plate 3 and the upper plate 4 to cause rotational movement of the upper plate 4.

On the other hand, one side of the cargo compartment is provided with a worker ladder 8 for connecting the upper plate 4 and the lower plate (3).

In the conventional vehicle carrying truck having such a configuration, when each cylinder is lowered to the position of the minimum stroke when the vehicle is loaded, the upper plate 4 is disposed to be inclined such that the rear end thereof is positioned at the lower portion. In this state, the vehicle is mounted on the upper plate 4 in a state in which the auxiliary footrest is placed on the rear end of the upper plate 4. When each cylinder is operated, the tip of the upper plate 4 is raised by the operation of the first cylinder 7, and at the same time, the rear end of the upper plate 4 is rotated by the second cylinder 8. Ascending will be achieved.

Therefore, when the upper plate 4 is raised to a predetermined height, the next vehicle enters the lower plate 3 to achieve a load. Each vehicle is fastened using a fastening rope after loading to limit the flow to prevent the departure.

On the other hand, the operator who drives the vehicle loaded on the upper plate 4 is lowered to the upper plate of a relatively high position in the vehicle, and then comes down by using the worker ladder 8.

However, the conventional transport truck having such a configuration not only has a risk of damage to the transport vehicle but also has a problem of cumbersome loading. To enumerate specifically, first, since the operator ladder 8 and the second cylinder are arranged on both sides of the lower plate 3, the driver of the vehicle loaded on the lower plate 3 does not pay attention to the door of the vehicle. When the door was opened, the outer side of the door interfered with these worker ladders 8 and the second cylinder 8, so that the coating of the door was peeled off, and the deformation occurred. In particular, such a problem is that the door opening of the vehicle loaded by the worker ladder 8 and the second cylinder 8 is extremely small, so that the driver is difficult to get off. I'm doing it.

Second, in the conventional structure, since the first cylinder 7 is vertically installed, the maximum descending position of the upper plate 4 is limited, so that the loading operation is difficult. That is, the cylinder must have a certain length in order to maintain the required stroke due to its characteristics, and the first cylinder 7 is also required length (length for raising the upper plate 4 from the lower plate 3 to a predetermined height). The minimum height at which the lowering of the upper plate 4 is allowed to remain relatively high since it has a stroke of Therefore, since the upper plate 4 has a fixed height at the tip and lowers only the rear end by using the second cylinder, the loading is performed in a state in which the upper plate 4 is inclined as a whole, so that the loading work is not easy and the safety of the work is lowered. Will be

Accordingly, the present invention has been made in view of the above problems, the object of the present invention is to simplify the structure and at the same time prevent the damage of the vehicle body in advance, as well as to ensure the safety when loading the vehicle to improve workability The present invention provides a truck for carrying a car.

1 is a side view showing the configuration of a conventional vehicle transport truck

Figure 2 is a side view showing the configuration of a vehicle transport truck according to the present invention

Figure 3 is a perspective view showing the main configuration of a vehicle transport truck according to the present invention

Figure 4 is an operating state of the vehicle transport truck according to the present invention

♣ Explanation of symbols for the main parts of the drawing ♣

10: Cab 20: Cargo Cabin

22: body frame 24: hydraulic pressure generating means

26: control unit 28: lower plate

30: front frame 32: hydraulic motor

34: Screw feed shaft 34a: Bracket

36: upper plate 38: upper guide rail

40: hydraulic cylinder 42: first operation link

42a: first arm 42b: second operating arm

44: 2nd operation link 44a, 44b: roller

46: connecting shaft 48: lower guide rail

52: fixing pin 54: fixing hole

An object of the present invention is a truck for transporting a vehicle having a cab and a cargo compartment for loading a plurality of vehicles, the lower plate disposed on the bottom of the cargo compartment; A pair of vertical frames placed on both front sides of the lower plate; A screw feed shaft arranged along each vertical frame and driven by a hydraulic motor provided at a lower portion thereof; An upper plate having a front end rotatably coupled to a bracket lifted by the screw feed shaft, and having upper guide rails formed at both rear ends thereof; A pair of hydraulic cylinders installed at both rear sides of the lower plate; A pair of first actuations having a center hinged to the body frame, the first arm extending from the hinge coupling portion and connected to the cylinder, and a second arm extending from the hinge to maintain a constant angle with the first arm; A link; A pair of second actuations of which a central portion is rotatably connected to the second arm, one end of which is movably coupled to a lower guide rail extending rearward of the lower plate, and the other end of which is movably coupled to the upper guide rail It can be achieved by a vehicle transport truck consisting of links.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of a vehicle transport truck according to the present invention will be described in more detail as follows.

2 shows an embodiment of a vehicle carrying truck according to the invention. According to this, the present invention is provided with a cab 10 and a cargo compartment 20 for loading a car behind the cab 10. The lower part of the cargo compartment 20 is made by the body frame 22, and the body frame 22 is provided with hydraulic generating means 24 having a normal hydraulic pump and a hydraulic valve, and the hydraulic generating means 24. The control unit 26 for controlling the supply of the hydraulic pressure generated in the required portion is installed.

On the other hand, the upper plate 28 is fixedly installed on the lower plate 28, the vehicle is loaded. A pair of vertical frames 30 are vertically installed on both front sides of the body frame 22, arranged along each vertical frame 30, and driven by the hydraulic pressure of the oil pressure generating means 24 at the bottom. A screw feed shaft 34 to which the hydraulic motor 32 is connected is installed.

The upper plate 36 is rotatably coupled to the bracket 34a that is lifted up and down by the screw feed shaft 34, and the upper guide rails 38 are formed on both sides of the rear end in the longitudinal direction. .

On both rear sides of the lower plate 28, a pair of hydraulic cylinders 40 which are operated by the oil pressure generated from the oil pressure generating means 24 are installed. The hydraulic cylinder 40 is supported so that the fixed end is allowed to rotate on the body frame 22. The hydraulic cylinder 40 is controlled by the control unit 26 to operate independently of the hydraulic motor 32.

One side of the hydraulic cylinder 40 is provided with a first operating link 42 which is centrally coupled to the body frame 22 by a hinge 42c to interlock with the hydraulic cylinder 40, and with the first operating link 42. A second actuating link 44 is provided for interlocking and lifting the upper plate 36.

3 shows the connection between the first operation link 42 and the second operation link 44 in detail. The first actuating link 42 extends from the hinge 42c engaging portion and extends from the hinge 42c so as to maintain a constant angle with the first arm 42a and the first arm 42a. Since the second arm 42b extends, the tip of the second arm 42b rotates with respect to the hinge 42c according to the operation of the hydraulic cylinder 40. According to the present invention, in order to reduce the length of the cylinder 40, it is preferable to configure the second arm 42b longer than the first arm 42a.

On the other hand, the connecting shaft 46 is arranged in the transverse direction of the vehicle body and both ends are coupled to the connecting portion of the hydraulic cylinder 40 and the first arm 42a to induce synchronization of both hydraulic cylinders 40. The connecting shaft 46 compensates for the operating error generated in the hydraulic cylinders 40 on both sides to match the completed positions of the links.

In addition, the second operation link 44 has a central portion rotatably connected to the second arm 42b, one end of which is movable to the lower guide rail 48 extending rearward of the lower plate 28. The other end is movably coupled to the upper guide rail 38. The second actuating link 44 is preferably provided with rollers 44a and 44b at both ends which are rolling along the upper guide rail 38 and the lower guide rail 48, respectively, for smooth movement. In addition, a plurality of fixing holes 54 are formed on the lower guide rail 48 in the longitudinal direction, and the fixing pins are inserted through the fixing holes 54 to restrict the movement of the rollers 44a and 44b at selected positions. 52 is further provided to maintain the fixed state of the second actuating link 44.

On the other hand, according to the present invention, the front ladder of the front frame 30, the worker ladder 56 is installed, the rear end of the body frame 22, the connecting footrest 58 is fixed to the rotatable and the connecting footrest There is further provided an auxiliary scaffold 62 which is selectively detached at and directs the vehicle's entry from the ground. At the end of the connection scaffolding 58, a supporting leg 60 is rotatably coupled to the ground to provide support.

In the present invention having such a configuration, as shown in FIG. 4, the auxiliary footrest 62 is unfolded and supported by the support leg 60, and the lower footplate 28 is connected to the ground by hanging the auxiliary footrest 62. At the lower plate 28 is lowered to load the car on the upper plate 36 in a state in which the rear end is matched with the connecting footrest 58. When the hydraulic motor 32 and the hydraulic cylinder 40 are operated by controlling the control unit 26 in this state, the tip of the upper plate 36 is raised along the bracket 34a which is raised by the screw feed shaft 34. The rear end is raised by the second operation link 44. That is, the first operation link 42 rotates by the operation of the hydraulic cylinder 40, and thus the center of the second operation link 44 is heard. At this time, the lower end of the second operation link 44 is lowered. Since the movement in the vertical direction is limited by the guide rails 48, the lower portion of the upper rail is only horizontally moved along the guide rails 48, and the upper end connected to the upper guide rails 38 rotates and rises. Therefore, the rear end of the lower plate 28 connected to the other end of the second operation link 44 by the upper guide rail 38 is raised. At the same time, the upper end of the second operation link 44 moves horizontally along the upper guide rail 38 to accommodate the change in the horizontal distance with respect to the height change.

When the upper plate 36 reaches the required height by the above operation, as shown in FIG. 1, the fixing pin 52 is installed at the lower end of the second operation link 44. When 44b) is inserted into the fixing hole 54 of the lower guide rail 48, the lowering of the upper plate 36 is limited.

In this state, the next vehicle enters the lower plate 28 to achieve a load. Vehicles loaded on the upper plate 36 and the lower plate 28 are fastened by fastening ropes (not shown) which are inserted through holes drilled in the plates to hold the wheels, respectively, to restrict the flow. Holding the wheels using the fastening rope is very effective to prevent the impact of the transport truck from being transferred to the loaded vehicle. That is, since the suspension provided on the vehicle is constructed by holding the wheels of the loaded vehicle, the shock applied to the transport truck is secondaryly buffered by the suspension to prevent damage due to the impact.

According to the present invention, since there is no element that interferes with the door on the side of the cargo compartment, when the driver driving the loading vehicle opens the door for getting off after loading, the coating state of the door is damaged as well as to prevent deformation of the door itself. do.

Although the embodiment of the present invention is limited to loading two cars, this is most suitable for two cars, and of course, the vehicle can be loaded more than a generation by partial modification and modification.

As described above, the vehicle carrying truck according to the present invention supports the front of the upper plate to be lifted by the screw feed shaft, and the rear end is lifted and rotated by the link means interlocked by the cylinder to the side of the cargo compartment By eliminating obstacles that interfere with the door, it is easy to protect the loaded vehicle and unload the worker. In particular, by lowering the position of the upper plate closer to the lower plate, it is possible to maintain the support state of the upper plate firmly. To have.

Claims (5)

In a vehicle transport truck having a cab 10 and a cargo compartment 20 provided on an upper part of the body frame 22 behind the cab 10 to load a plurality of cars, A lower plate 28 fixedly disposed on an upper portion of the vehicle body frame 22; A pair of vertical frames 30 mounted on both front sides of the lower plate 28; A screw feed shaft 34 arranged along each vertical frame 30 and driven by a hydraulic motor 32 provided below; An upper plate 36 whose front end is rotatably coupled to the bracket 34a which is lifted and lowered by the screw feed shaft 34, and upper guide rails 38 are formed on both rear ends thereof; A pair of hydraulic cylinders 40 installed at both rear sides of the lower plate 28; The center is coupled to the body frame 22 by a hinge 42c, and extends from the hinge 42c engaging portion to be connected to the cylinder 40 and the first arm 42a and the first arm 42a at an angle. A pair of first actuating links 42 having a second arm 42b extending from the hinge 42c so as to maintain a; A central portion is rotatably connected to the second arm 42b, one end of which is movably coupled to a lower guide rail 48 extending rearward of the lower plate 28, and the other end of which is the upper guide rail 38. An automobile transport truck comprising a pair of second actuating links 44 movably coupled to the vehicle. 2. The motor vehicle according to claim 1, wherein the second actuating link (44) is provided at both ends with rollers (44a) (44b) for rolling along the upper guide rail (38) and the lower guide rail (48), respectively. Haul truck. 3. The lower guide rail 48 is provided with a plurality of fixing holes 54 in the longitudinal direction and is inserted through the fixing holes 54 to move the rollers 44a and 44b at selected positions. Car retainer truck, characterized in that a further provided with a limiting pin 52. According to claim 1, The connecting shaft is arranged in the transverse direction of the vehicle body both ends coupled to the connecting portion of the hydraulic cylinder 40 and the first arm (42a) to induce synchronization of both hydraulic cylinders (40) Car carrying truck, characterized in that. The vehicle transport truck according to claim 1, wherein a driver ladder 56 is placed on the front side of the front frame 30.