JPS6357255B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container attachment/detachment device installed in a heavy goods transport vehicle.

Conventionally, this type of container attachment/detachment device connects a bail portion 3 attached to the tip of a piston rod 2 reciprocating in a hydraulic cylinder 1 to an understructure 5 fixing a container 4, as shown in FIG. Stop this understructure 5
is slid along the upper surface of the tilting frame 6, and the containers 4 are loaded and unloaded. That is,
A front hook part 8 and a rear hook part 9 are formed at the front part A, middle part B, and rear part C of the understructure 5, and are connected through a branch part 7, and the container 4 is loaded onto the heavy goods transport vehicle 10. To do this, the bail 3 of the container attachment/detachment device is first engaged with the front hook part 8 of the front part A of the understructure 5 and pulled up, and then the bail 3 of the container attachment/detachment device is pulled up by the front hook part 8 of the middle part B and rear part C.
To lower the container 4, lock the bail 3 to the rear hook part 9 of the rear part C and push it down, then move the bail 3 to the rear part B,
Switch the locking to the rear hook part 9 of the front part A and push down.

However, when loading a container as described above, when switching the locking of the bail 3 from the front hook part 8 of the front part A to the front hook part 8 of the middle part B and rear part C, or when lowering the container, the bail 3 is moved to the rear part C. When switching the locking from the rear hook part 9 of the middle part B to the rear hook part 9 of the front part A, the understructure 5 to which the container 4 is fixed will tilt depending on the degree of inclination of the tilting frame 6, the center of gravity of the container 4, etc. There were cases where the frame 6 slipped down, which was very dangerous.

This invention was made in view of the above circumstances, and its purpose is to add a slip-down prevention mechanism to both sides of the tilting frame.
To provide a container attachment/detachment device in which there is no risk of an understructure slipping off a tilting frame due to the degree of inclination of the tilting frame, the center of gravity of the container, etc.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be explained below with reference to the drawings showing one embodiment.

FIG. 4 is a side view of a heavy goods transport vehicle 10 equipped with the container attachment/detachment device of the present invention. 10 is loaded and unloaded. The tilting frame 6 of the container attachment/detachment device is tilted at an appropriate angle by a piston rod 13 that reciprocates a hydraulic cylinder 12 attached to a chassis 11 of a heavy transport vehicle 10. This tilting frame 6 has a hydraulic cylinder 1
A bail part 3 is attached to the tip of the piston rod 6 that reciprocates the container 4.
loading and unloading.

Rack rails 14 are fixed to both sides of the tilting frame 6, and the rack rails 14 include:
A link mechanism 16 that swings on the side of the rack teeth 15 is provided. This rick mechanism 16 has a vertical link 1
7, 17... and horizontal links 18, 18 to form a parallelogram shape, and vertical links 17, 17...
is rotatably attached to the rack rail 14 by a pin 19, and is swung by the operation of an actuator 20. A hydraulic pipe 22 is connected to the actuator 20 via a switching valve 21, and the actuator 20 is operated by operating a control lever 24 on a driver's seat 23. Furthermore, on both sides of the tip of the understructure 5 that slides along the top surface of the tilting frame 6, there are hook-up prevention plates 2.
5 and a hook member 27 whose rotational width is limited by a hook lowering prevention plate 26 is pivotally connected by a pin 28, and this hook member 27 is rotated by the vertical swing of the horizontal link 18 of the link mechanism 16. It is structured so that it can be engaged with the rack teeth 15 or removed from the rack teeth 15.

Therefore, when a container fixed to the understructure is loaded or unloaded onto a heavy goods transport vehicle, the container attachment/detachment device of the present invention operates as follows.

First, in order to load the container 4 onto the heavy goods transport vehicle 10, the actuator 20 is operated by operating the operating lever 24 of the driver's seat 23, and the link mechanism 16 is maintained in the state shown by the solid line in FIG. Then, the bail 3 of the container attachment/detachment device is engaged with the front hook part 8 of the front part A of the understructure 5 and pulled up. Next, the bail 3 of the container attachment/detachment device is switched to the front hook part 8 of the middle part B and rear part C and pulled up. go. In this case, the understructure 5 is pulled up while the hook members 27 engage with the rack teeth 15 of the tilting frame 6 one after another, so that even when switching the bail section 3, the hook members 27 are engaged with the rack teeth 15. Therefore, the understructure 5 does not slide down the tilting frame 6.

Next, in order to lower the container 4 from the heavy transport vehicle 10, the actuator 20 is actuated by operating the operating lever 24 of the driver's seat 23, and the link mechanism 1
6 is maintained in the state shown by the imaginary line in FIG.
Lock it to the rear hook part 9 of the rear part C and push it down. Next, before switching the locking of the bail 3 to the rear hook parts 9 of the middle part B and the front part A, the link mechanism 16 is swung to the state shown by the solid line in FIG. mesh with the lock teeth 15 of the tilting frame 6. In this state, remove the bail 3 from the rear hook part 9 of the rear part C, switch the locking to the rear hook part 9 of the middle part B, and then the front part A, and return the link mechanism 16 to the state shown by the imaginary line in FIG. Return it and push down the understructure 5. That is, when the bail 3 does not lock the rear hook portion 9, the lock teeth 15
Since the hook member 27 is engaged with the understructure 5, the understructure 5 does not slip down the tilting frame 6, and when the bail 3 is engaged with the rear hook part 9, As shown, due to the swinging of the link mechanism 16, the hook member 27
is lifted by the transverse link 18 and the hook member 27 is removed from the rack tooth 15 so that the understructure 5 can be pushed down by the bail 3.

As described above, since the container attachment/detachment device of the present invention has a sliding prevention mechanism added to both sides of the tilting frame, the understructure may slide down the tilting frame depending on the degree of inclination of the tilting frame, the center of gravity of the container, etc. There is no danger, and containers can be safely loaded and unloaded onto heavy goods transport vehicles.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a heavy goods carrier equipped with a conventional container attachment/detachment device, Fig. 2 is a perspective view of an understructure to which a container is fixed, and Fig. 3 is a perspective view showing the main parts of the understructure. Fourth
FIG. 5 is an explanatory diagram showing a state in which containers are being loaded and unloaded onto a heavy goods transport vehicle equipped with the container attachment/detachment device of the present invention, FIG. FIG. 6 is a sectional view taken along line A-A in FIG. 5. 5... Understructure, 6... Tilting frame, 10... Heavy carrier, 11... Chassis, 12... Hydraulic cylinder, 13... Piston rod, 14... Rack rail, 15... Rack tooth, 16... Link mechanism, 27... hook member.

Claims (1)

[Claims] 1 Rack rails 14 are fixed to both sides of the tilting frame 6 tilted at an appropriate angle by a piston rod 13 that reciprocates a hydraulic cylinder 12 attached to a chassis 11 of a heavy transport vehicle 10, and rack teeth 15 are attached to the rack rails 14. A container attachment/detachment device characterized in that a link mechanism 16 is provided which swings on the side of the understructure 5 and raises and lowers a hook member 27 rotatably provided on both sides of the tip of the understructure 5.