JPS6239954Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention mainly relates to an improvement of a loading platform tilting device for a freight vehicle so that the loaded transportation of one vehicle can be easily carried out by a single person.

For moving non-self-propelled vehicles, such as broken down cars or illegally parked cars, to a location close to their location, there are already many transport vehicles such as crane trucks, retrieval trucks, and trailer vehicles that can be transported by a single person. However, they are not suitable for long-distance transport. For items that are considered suitable for long-distance transportation even by a single person, and whose loading platform is tilted so that the transported vehicle can be propelled from the ground onto the platform, or which can be pulled up with a winch, a hydraulic mechanism may be used to operate the loading platform. This system was expensive, and required redundant mechanisms such as a particularly low-floor chassis and a separate winch, so it could not be said to have any advantageous functions.

In order to eliminate such inconveniences in transporting vehicles, this invention was developed to connect a winch rope fixed to the undercarriage via a pulley at the top of the torii gate attached to the undercarriage of a freight vehicle suitable for long-distance transport. It is hooked to the front part of the upper loading platform via a pulley attached to the front part of the lower loading platform of the heavy platform, and the lower loading platform has its rear end pivoted to the vehicle platform, and its front part is connected to the raised and lowered positions of the torii. The upper loading platform has a mechanism for fixing the loading platform at a certain position and can be moved up and down within the torii, and the upper loading platform is placed on the lower loading platform so that it can slide on the lower loading platform, and most of the loading platform is placed on the lower loading platform. It is characterized by being able to protrude rearward from the rear of the lower loading platform, and in this way, the loading platform can be tilted without using an expensive hydraulic mechanism, using only a power source such as a 24-volt storage battery loaded on a truck. Not only does it have the advantage of being able to tilt by driving a winch, but the platform can also be easily converted into a regular truck and used for loading, unloading, or transporting broken vehicles. This made it possible to easily tow it by a single person, making it possible to create a loading platform tilting device that was superior in practical terms.

In the embodiment shown in the accompanying drawings, the truck has a conventional configuration with an engine and a driver's seat in the front, and a chassis 1 extending long behind the engine.

Although an example is shown in which a flat plate having approximately the same width as the driver's seat is attached to the chassis 1 to form a cargo platform, this invention does not necessarily require such a cargo platform. A torii gate 3 is installed on the chassis 1 behind the driver's seat and stands upright with left and right legs 30, 30 extending to the full width of the chassis 1, and a winch 2 is installed in the narrow space between the torii gate 3 and the back of the driver's seat. Be prepared. This winch 2 can be driven by electricity from a 24-volt storage battery included in the truck, and its drive switch is attached to the end of a long cord (not shown) that extends from the winch 2 to operate the tilting platform, which will be described later. The winch 2 can be operated and stopped while monitoring the condition.

A tilting platform 12 is provided on the vehicle platform 1 and extends from the torii 3 on the vehicle platform 1 to the rear end of the vehicle platform 1, and a slide platform 13 is placed on the tilting platform 12.
The tilting loading platform 12 and the sliding loading platform 13 are referred to as a double loading platform. The sliding loading platform 13 slides on the tilting loading platform 12.
As can be seen in Figure 5, 3 has a concave cross section with a width sufficient to allow the wheels of a car to run on it, and a car can completely ride on it. The two concave plates 13A, 13B are formed of two concave plates 13A, 13B with a length that can be rested on the front and rear fixed plates 7, 7 at intervals corresponding to the width of the car to be placed on them. ’ is fixed. Of course, this sliding loading platform 13 has been shown as an example formed of two plates 13A and 13B with a concave cross section in order to place one automobile on it, but in this way it can be used not only for automobiles but also for other vehicles. In order to make it usable for loading industrial machinery, machine tools, agricultural machinery, or heavy cargo, the width and length may be formed by a simple flat plate; however, in that case, the flat plate slide platform 13 , the tilting platform 12
In order to accurately slide the flat plate sliding platform 13 in the front and rear directions, a protrusion that fits into the groove of the tilting platform 12 and slides thereon is formed on the back side of the flat slide platform 13.

The tilting loading platform 12 on which the sliding loading platform 13 slides is made up of two plates 12A, 1 each having a concave cross section into which the concave portion of the sliding loading platform 13 is loosely fitted.
2B is connected to the required size with a front connecting plate 6 and a rear connecting plate 6', and the tilting platform 12
The rear end is connected to bearing bodies 1 provided on the left and right sides of the rear of the chassis 1.
A stop shaft 16 passing through the side wall of the concave plate is inserted into 8 and 18 to fix the shaft, and the entire length of the tilting platform 12 is such that its front part passes through the torii gate 3 and reaches just in front of the winch 2. A pulley 5 is mounted on the front coupling plate 6. Therefore, if the rope 8 is put around the pulley 5 and the pulley 5 is pulled up above the torii gate by the rope 8, the tilting load platform 12 will be able to move its front part around the rear stop shaft 16 as shown in FIG. In this way, the tilting platform 12 can be lifted up to the vehicle platform 1.
It can be tilted towards the rear.

Winding and unwinding of the rope 8 hung on the pulley 5 is performed by the winch 2;
A pulley 4 is provided on the upper side of the torii 3 in order to lift the torii 3 above the torii 3, and a rope 8 is passed through the upper pulley 4 to a pulley 5.

The sliding loading platform 13 automatically slides on the tilting loading platform 12 due to the above-mentioned inclination of the tilting loading platform 12, and in order to ensure smooth sliding, a concave bottom of the tilting loading platform 12 is provided. A required number of rollers 14 are installed at regular intervals, and the rollers 1
4, the concave bottom surface of the slide platform 13 is placed.

In order to cause the sliding loading platform 13 to slide on the tilting loading platform 12 after the tilting operation of the tilting loading platform 12 is completed using the single rope 8 of the winch 2, a pulley 5 attached to the tilting loading platform 12 is used. The end of the rope 8 is then pulled out above the front surface of the slide platform 13, and the hook (not shown) attached to the end of the rope 8 is attached to a pin (or hook) 9 protruding from the fixed plate 7 at the front of the slide platform 13. Multiply with. On the other hand, the left and right legs 30, 30 of the torii 3 are provided with through holes 10, 11 in the lower and upper parts thereof, through which the fixing rods 17A, 17B of the tilting platform 12 are inserted.
As shown in the figure, separate left and right fixing rods 17A and 17B are inserted respectively. Note that a rod 17 for stopping the tilting platform 12 from rising is provided above the upper through-holes 11 of the legs 30, 30.

In the above configuration, in order to pick up cargo such as automobiles or heavy objects, the freight vehicle of the present invention is operated at a location where the cargo is located, and the through hole 1 at the bottom of the torii gate 3 is operated.
When the fixing rods 17A and 17B inserted through the 0 are pulled out and the winch 2 is given a winding drive for the rope 8, the rope 8, which is engaged with the pin 9 at the front of the slide platform 13, is pulled out from the pulley 5 and the top of the torii. It comes to be wound up by the winch 2 via the pulley 4, and thus the tilting platform 12 raises the front part of the slide platform 13 above the torii gate 3 while keeping the slide platform 13 in the fixed position on the tilting platform 12. When the front part of the tilting platform 12 reaches the stop bar 17 above the torii gate, the rope 8
At this time, the front part of the tilting platform 12 has exceeded the through hole 11 at the top of the torii gate 3, so insert the fixing rods 17A and 17B into the through hole 11, and then insert the fixing rods 17A and 17B into the winch 2. When a reverse action is applied, the coiled rope 8 is now let out, and the front part of the tilting platform 12, which is in the raised position, tries to descend, but the lowering is prevented by the fixed rods 17A, 1.
It is stopped by placing the front part of the tilting platform 12 on 7B. That is, the tilting platform 12 is stopped on the vehicle platform 1 in an inclined position. (Refer to the chain diagrams in Figures 3 and 5.) However, as the rope 8 is subsequently let out, the sliding platform 13 slides down on the tilting platform 12 under its own weight according to the length of the rope 8. The rear end edge of the sliding platform 13 not only protrudes significantly rearward from the rear end of the tilting platform 12, but also eventually comes to touch the ground as shown in FIG. 4.

In this case, no matter how much the rope 8 is let out, the slide platform 13 will no longer slide down. Therefore, when the sliding loading platform 13 is in a tilted position between the ground and the tilting loading platform 12, a self-propelled automobile can move up onto the sliding loading platform 13, and other heavy cargo is transported onto the sliding loading platform 13. Remove the end of the rope 8 that is hooked to the pin 9 from the pin 9, stretch the rope 8, and attach it to a heavy cargo on the ground. It can be easily pulled up onto the slide platform 13.

When the cargo is placed at a predetermined position on the slide platform 13 in the tilted position, the end of the rope 8 is placed on the slide platform 1.
3, and the winch 2 is driven to take up the winding. At this time, the front part of the tilting loading platform 12 rises due to the pulley 5, but this rise is blocked by colliding with the stop bar 17 at the top of the torii gate 3, and thus only the sliding loading platform 13 is moved upwards by the pulley 5. be pulled upwards.

When the sliding loading platform 13 slides upward to a predetermined position on the tilting loading platform 12, the fixing rods 17A and 17B inserted into the upper through-hole 11 of the torii 3
is removed and the winch 2 is driven to pay out the rope, the front part of the tilting platform 12 descends inside the torii gate 3, and the platform 12 moves onto the vehicle platform 1 with the slide platform 13 placed thereon. Return to horizontal position.

Fixing rods 17A and 17B removed from the top of Torii 3
is again inserted into the through hole 10 at the bottom of the torii gate 3, thereby preventing the tilting platform 12 from flying up on the vehicle platform 1 when the truck is traveling.

In addition, the rear part of the tilting loading platform 12 is also provided with a stopper 15 that covers the side wall of the sliding loading platform 13, and also prevents the sliding loading platform 13 from slipping naturally when the truck is running due to the rope 8 coming off the pin 9, etc. A fixing pin 19 (see FIG. 2) is inserted between the tilting platform and the sliding platform 13 to prevent this.

As described above, the truck bed tilting device of this invention tilts the double loading platforms 12 and 13 on the vehicle platform 1, thereby moving the upper loading platform (sliding loading platform) 13 to the lower loading platform (tilting loading platform) 12. behind the
In other words, the rear end of the chassis 1 is made to protrude significantly to the rear, and its rear end is grounded, so that loading and unloading of heavy cargo can be carried out by a single person and a winch operated by the power supply provided by the truck. This makes it possible to transport cargo to long distances safely and economically without the need for equipment, making it possible to create a loading platform tilting device that is superior in practical terms.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a truck equipped with the loading platform tilting device of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the loading platform in an inclined state, and Fig. 4 is the same. FIG. 5 is a side view of a mode in which the slide platform is slid down, and FIG. 5 is a rear view of the same platform. 1 is the chassis, 2 is the winch, 3 is the torii, 30 is the leg, 4 is the pulley on the top of the torii, 5 is the pulley on the lower loading platform (tilting loading platform) 12, 8 is the rope, 9 is the upper loading platform (sliding loading platform) 13 pins, 10 and 11 are through holes in the lower and upper parts of the torii legs, 14 is a roller, 15 is a spring stopper, 16 is a stop shaft, 17 is a stop bar, 17A, 1
7B is a fixed rod, 18 is a bearing body.

Claims (1)

[Scope of utility model registration request] The rope of the winch fixed to the chassis is hooked to the front part of the upper cargo platform via the pulley attached to the upper part of the torii gate attached to the chassis, and the rope of the winch fixed to the chassis is hooked to the front part of the upper cargo platform via the pulley attached to the front part of the lower cargo platform of the double platform on the chassis. The rear part of the loading platform is pivoted to the vehicle chassis, and the front part thereof has a mechanism for fixing the loading platform in the raised and lowered positions of the torii gate, and can be moved up and down within the torii. A loading platform tilting device for a truck, which is placed on the lower loading platform so as to be able to slide on the lower loading platform, and the majority of the loading platform can protrude rearward from the rear of the lower loading platform.