JP2000289517A - Rotation shaft vibration preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure stability of a vehicle even if the vehicle rolls at carrying a container by locking a rear elevating mechanism with a lift cylinder and a rear part supporting mechanism in a vehicular lateral direction, and to facilitate maintenance or check of a fixing means of the rear elevating mechanism with the lift cylinder and the rear part supporting mechanism by preventing the fixing means from hiding in the interior of a vehicle. SOLUTION: At front and rear positions of a rear frame behind a vehicle 1, a sub-frame 4 is horizontally elevated by elevating mechanisms 3a, 3b with a lift cylinder, and the sub-frame 4 is provided with a mount removable mechanism 6 detachably mounting a container and a rear part supporting mechanism 7 supporting a rear part of the sub-frame 4 when the sub-frame 4 is disposed at a raised position by the elevating mechanisms 3a, 3b with a lift cylinder. A lock pin fixing the elevating mechanism 3a with a lift cylinder is arranged on the rear frame 2, and a stopper locking the elevating mechanism 3b with a lift cylinder and the rear part supporting mechanism 7 in vehicular width direction to hold is arranged on a lift arm 10 of the rear part supporting mechanism 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container-removable transport vehicle capable of removably mounting a container on a rear frame by using a horizontally moving sub-frame.

[0002]

2. Description of the Related Art Conventionally, a dump truck as disclosed in, for example, Japanese Patent No. 262279 exists in this type of container detachable carrier. As shown in FIGS. 15 to 17, the dump truck includes an elevating mechanism 5 with a lift cylinder on front and rear portions of a rear frame 52 behind the vehicle body 51.
The sub-frame 54 is provided so as to be vertically moved up and down via 3a and 53b. The sub-frame 54 is provided with a mounting / removing mechanism 55 that allows a vessel (not shown) to be removably mounted. Further, the lifting mechanism 53a with a lift cylinder,
When the sub-frame 54 is placed in the up position by 53b, the sub-frame 54 is provided with a rear support mechanism 56 that can dump the sub-frame 54 and is supported at the rear of the sub-frame 54. In addition, a lock pin 57a for fixing the lifting mechanism 53a with the front lift cylinder is disposed on the rear frame 52, and a lock pin 57b for fixing the lifting mechanism 53b with the rear lift cylinder and the lift arm 56a of the rear support mechanism 56. Are arranged on the rear frame 52. Further, a dump cylinder 58 is connected between the rear frame 52 and the sub-frame 54.

[0003]

However, in the conventional container-equipped transport vehicle, the lifting mechanism 53a with the lift cylinder at the front, the lifting mechanism 53b with the lift cylinder at the rear, and the rear support mechanism 56 are each provided with a lock pin 57a. , 57b, the lock pins 57a, 5b
7b to the sub-frame 54 and the rear support mechanism 56, respectively.
In this case, the lift mechanisms 53a and 53b with the lift cylinder and the rear support mechanism 56 are not restrained in the vehicle lateral direction as they are, and when the vehicle rolls, There is a problem that a problem remains in the stability of the vehicle. Further, in order to eliminate the problem of the stability of the vehicle, it is necessary to provide a special structure for that purpose, and there is a problem that the vehicle cost is increased.

Furthermore, in the above-mentioned conventional container-equipped transport vehicle, the lock pin 57b for fixing the rear elevating mechanism 53b with the lift cylinder and the rear support mechanism 56 is provided on the rear frame 52. Due to the structure, the subframe 54 and the lift arm 56a cover the rear frame 52, and the lock pin 57b is hidden inside the vehicle. Therefore, there is a problem that the maintenance and inspection are difficult.

In view of the above, the present invention has been made to solve the above-mentioned conventional problems. By restraining a rear lifting mechanism with a lift cylinder and a rear support mechanism in the lateral direction of the vehicle,
In addition to ensuring the stability of the vehicle even when the vehicle rolls while transporting the container, the lifting mechanism with the lift cylinder at the rear and the fixing means of the rear support mechanism are not hidden inside the vehicle. The object of the present invention is to provide a container-equipped transport vehicle that facilitates maintenance and inspection.

[0006]

SUMMARY OF THE INVENTION Therefore, a container detachable carrier according to the present invention includes a rear frame 2 behind a vehicle body 1.
The sub-frame 4 is horizontally moved up and down via lifting mechanisms 3a and 3b with lift cylinders at the front and rear portions of the apparatus, and a mounting / removing mechanism 6 capable of detachably mounting the container 5 on the sub-frame 4 is provided. A rear support mechanism 7 is provided for supporting the rear portion of the sub-frame 4 when the sub-frame 4 is raised and arranged by the lifting mechanisms 3a and 3b with cylinders. Further, a lock pin 8 for fixing the lifting mechanism 3a with a front lift cylinder is provided. Is provided on the rear frame 2 and a stopper 9 for restraining and holding the rear lifting mechanism 3b with the lift cylinder and the rear support mechanism 7 in the vehicle lateral direction is provided on the lift arm 10 of the rear support mechanism 7. And

In the container detachable carrier according to the present invention, the stopper 9 comprises a bracket 23 projecting from a bearing 22 and an arm 24 attached to the bracket 23. 2
4 is swung by a rod 25a of a rear lock cylinder 25 provided at a lower portion of the lift arm 10 so that a front end portion of the bracket body 23 projects outward, and an inner side surface 26a of a concave portion 26 at a rear end of the rear frame 2, It is configured to be supported in a state where it abuts against the bottoms of the pockets 27, 27 provided in 26a.

Further, in the container detachable carrier according to the present invention, a dump cylinder 28 is connected between the rear frame 2 and the sub-frame 4, and when the sub-frame 4 is lifted and arranged by the lifting mechanisms 3a and 3b with lift cylinders. The subframe 4 can be dumped.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a container-equipped transport vehicle according to an embodiment of the present invention.

As shown in the drawing, the container detachable carrier according to the present invention horizontally lifts and lowers the sub-frame 4 via lifting mechanisms 3a and 3b with lift cylinders at front and rear portions of a rear frame 2 behind the vehicle body 1. It is assumed to be. The sub-frame 4 is provided with a mounting / removing mechanism 6 which allows the container 5 to be removably mounted. Further, the lifting mechanism 3 with the lift cylinder
A rear support mechanism 7 is provided to support the rear portion of the sub-frame 4 when the sub-frame 4 is disposed in the ascending position by a and 3b. In addition, a lock pin 8 for fixing the lifting mechanism 3a with the lift cylinder at the front is provided on the rear frame 2, and the lifting mechanism 3b with the lift cylinder at the rear is provided.
In addition, a stopper 9 for restraining and holding the rear support mechanism 7 in the lateral direction of the vehicle is provided on the lift arm 10 of the rear support mechanism 7.

Lifting mechanism 3a, 3b with lift cylinder
The lower ends of the lift cylinders 11a and 11b are pivotally supported by the rear frame 2, respectively.
Lift beams 13a, 13b are pivotally supported at the upper ends of rods 12a, 12b of 1a, 11b. Further, each of the lift beams 13a and 13b has a pivot arm 14 attached thereto.
The upper ends of the rotary arms 14a and 14b are supported by the rear frame 2, while the upper ends of the rotary arms 14a and 14b are supported by the rear frame 2. The rotating arms 14a and 14b are connected to the sub-frame 4 by the lift mechanisms 3a and 3b with the lift cylinder.
In the ascending arrangement, the weight of the sub-frame 4 is shared and supported.

As shown in FIGS. 8 and 9, the container 5 has support legs 5b provided on both sides of the container body 5a, and a cushion body 15a is mounted near the upper front end of the support leg 5b. An elongated hole 15b is formed near the front of the plate 16 attached to the lower end of both sides, and the space below the container body 5a is defined as an entry space S for the rear frame 2. And this container 5
When the sub-frame 4 is placed on the ground, the height of the sub-frame 4 at the time of the descending arrangement is set to be below the bottom surface of the container body 5a. The support legs 5b are lifted up to be able to be transported.

As shown in FIGS. 7 and 10, the mounting / removing mechanism 6 includes a stopper 17 protruding from both sides of the front portion of the sub-frame 4 and a lock cylinder 1 disposed on the sub-frame 4.
8 comprises a lock pin 19 which protrudes and retracts from the side of the sub-frame 4 by the operation of the rod 18a.
The sub-frame 4 at the time of the lowering arrangement, which is disposed under the bottom surface of the sub-frame 4, is raised to project the lock pin 19 from the side of the sub-frame 4, and the lock pin 19 is inserted into the long hole 15b The container 5 is fixedly mounted on the sub-frame 4.

The rear support mechanism 7 supports the tip of the rod 12b of the lift cylinder 11b on the upper end of the front part of the lift arm 10 and the sub frame 4 on the upper face of the upper end of the front part.
, The rear end of the sub-frame 4 is pivotally supported at the rear upper end of the lift arm 10, and the stopper 9 is disposed near the rear lower end of the lift arm 10. Therefore, this stopper 9
It is easy to maintain and inspect without hiding inside the vehicle.

The lock pin 8 is actuated by a rod 20a of a lock cylinder 20 arranged on the rear frame 2 to operate.
The lifting mechanism 3a with a lift cylinder is fixed by being inserted into a pin hole 21a formed in a fixing plate 21 vertically provided on the sub-frame 4.

As shown in FIGS. 11 to 13, the stopper 9 is formed by projecting a bracket 23 from a bearing 22 and further attaching an arm 24 to the bracket 23. The bracket body 23 is swung by the operation of the rod 25a of the rear lock cylinder 25 attached to the rear lower end of the lift arm 10 so that the bracket body 23 protrudes outward or retracts inward. And the lifting mechanism 3a with the lift cylinder,
3b, the rod 25a of the rear lock cylinder 25 is retracted and the stopper 9
The bracket body 23 is retracted inward, but the lifting mechanism 3a, 3b
When the sub-frame 4 is raised, the rod 25a of the rear lock cylinder 25 protrudes and protrudes outside the bracket body 23 of the stopper 9, and is provided on the inner side surfaces 26a, 26a of the concave portion 26 at the rear end of the rear frame 2. The pockets 27 are supported in a state where they abut against the bottoms of the pockets 27, 27, and the rear lifting mechanism 3b with a lift cylinder and the rear support mechanism 7 are restrained and held in the vehicle lateral direction. Therefore, even when the vehicle rolls, stability of the vehicle can be ensured.

Further, in the container detachable carrier according to the present invention, a dump cylinder 28 is connected between the rear frame 2 and the sub-frame 4, and the sub-frame 4 is lifted and arranged by the lifting mechanisms 3a and 3b with lift cylinders. The subframe 4 can be dumped.

Using the detachable container carrier of the present invention thus configured, the container can be detachably mounted on the rear frame as follows.

First, the vehicle body 1 is retracted, and the sub-frame 4 is lowered into the space S of the container 5 previously loaded and placed on the ground by the lifting mechanisms 3a and 3b with lift cylinders as shown in FIGS. Rear frame 2
The cushion body 15 attached to the support leg 5b of the container 5 is inserted into the stopper 17 of the loading / unloading mechanism 6
When "a" comes into contact, the approach of the rear frame 2 is stopped. Then, the subframe 4 is set in the raised position shown in FIGS. 4 to 6 by the lifting mechanisms 3 a and 3 b with lift cylinders, and the lock pin 19 of the mounting / removing mechanism 6 is
The container 5 is fixedly mounted on the sub-frame 4 by being inserted into the long hole 15b of the plate 16a. When the rod 20a of the lock cylinder 20 and the rod 25a of the rear lock cylinder 25 are operated at the same time when the sub-frame 4 is placed in the raised arrangement state, the lifting mechanism 3a with the lift cylinder at the front is fixed by the lock pin 8. ,
The rear lifting mechanism 3b with a lift cylinder and the rear support mechanism 7 are restrained and held in the vehicle lateral direction by a stopper 9. Therefore, in the container detachable transport vehicle according to the present invention, the loaded container 5 can be transported to a target place in a stable state even when the road for transporting the container is bad or the vehicle sways.

Further, in the container detachable carrier according to the present invention, in order to lower the container 5 mounted on the rear frame 2, the lock pin 8 is used to release the fixing of the lifting mechanism 3 a with the lift cylinder at the front and the stopper. The vehicle body 1 may be advanced in a state where the fixing of the lifting mechanism 3b with the lift cylinder at the rear and the rear support mechanism 7 by 9 is released, and the subframe 4 is lowered by the lifting mechanisms 3a and 3b with the lift cylinder. If you do this,
The rear frame 2 is pulled out from the space S of the container 5, and the container 5 mounted on the rear frame 2 can be lowered.

In the container-equipped transport vehicle according to the present invention, the load in the container 5 is
It is possible to unload the entire container, or only the cargo can be lowered using a crane or the like. However, while the container 5 is mounted on the sub-frame 4, as shown in FIG.
The sub-frame 4 can be tilted by 8 so that the cargo can be slid down from within the container 5.

[0022]

According to the container detachable carrier of the present invention, as described above, the lifting mechanism with the lift cylinder at the rear and the rear support mechanism can be restrained in the lateral direction of the vehicle. In addition to ensuring the stability of the vehicle even if the vehicle rolls during transportation,
It is possible to prevent the lifting means with the rear lift cylinder and the fixing means of the rear support mechanism from being hidden inside the vehicle,
Maintenance and inspection of this fixing means became easy.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of a container detachable carrier according to the present invention.

FIG. 2 shows a container A of FIG. 1 of the container detachable carrier according to the present invention.
It is sectional drawing by the -A line.

FIG. 3 is a view B of FIG. 1 of the container detachable carrier according to the present invention;
It is sectional drawing by the -B line.

FIG. 4 is a partial cross-sectional side view of the container detachable carrier according to the present invention shown in FIG. 1 in a state where a subframe is raised.

FIG. 5 is a view showing a container C in FIG. 4 of the container detachable carrier according to the present invention;
It is sectional drawing by the -C line.

FIG. 6 is a view of the container detachable carrier according to the present invention, D in FIG. 4;
It is sectional drawing by the -D line.

FIG. 7 is a partially cutaway plan view of the container detachable carrier according to the present invention.

FIG. 8 is a side view of a container mounted on the container detachable carrier according to the present invention.

FIG. 9 is a front view of a container mounted on the container detachable carrier according to the present invention.

FIG. 10 is a sectional view of the container detachable carrier according to the present invention taken along line EE in FIG. 4;

FIG. 11 is a front view of a stopper of the container detachable carrier according to the present invention.

FIG. 12 is a plan view of a stopper of the container detachable carrier according to the present invention.

FIG. 13 is a side view of a stopper of the container detachable carrier according to the present invention.

14 is a side view of the container detachable carrier according to the present invention shown in FIG. 4 in a state where the subframe is tilted.

FIG. 15 is a side view of a conventional container detachable carrier.

FIG. 16 is a side view of a conventional detachable container carrier in which a subframe is raised.

FIG. 17 is a partially cutaway plan view of a conventional container-equipped transport vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Rear frame 3a Lifting mechanism with lift cylinder 3b Lifting mechanism with lift cylinder 4 Subframe 5 Container 6 Mounting / removing mechanism 7 Rear support mechanism 8 Lock pin 9 Stopper 10 Lift arm 22 Bearing body 23 Bracket body 24 Arm body 25 Rear lock cylinder 25a rod 26 recess 26a inner surface 27 pocket 28 dump cylinder

Claims (3)

[Claims] 1. A rear frame (2) behind a vehicle body (1).
Lifting mechanism with lift cylinder at front and rear part of (3a, 3b)
To move the sub-frame (4) up and down horizontally through
The sub-frame (4) is provided with a mounting / removing mechanism (6) capable of detachably mounting the container (5), and when the sub-frame (4) is raised and arranged by the lifting / lowering mechanism (3a, 3b) with the lift cylinder. A rear support mechanism (7) for supporting the rear part of the sub-frame (4) is provided. Further, a lock pin (8) for fixing a front elevation mechanism (3a) with a lift cylinder is provided on the rear frame (2). The rear support mechanism (7) is provided with a stopper (9) that restrains and holds the rear lift mechanism (3b) with a lift cylinder and the rear support mechanism (7) in the vehicle lateral direction.
A detachable container carrier, wherein the container is mounted on a lift arm (10). 2. The stopper (9), wherein a bracket (23) is projected from a bearing (22), and an arm (24) is further attached to the bracket (23). (24) is a rear lock cylinder (2) provided below the lift arm (10).
The bracket (23) is swung by the rod (25a) of (5) so that the front end of the bracket (23) projects outward, and the inner side surfaces (26a, 26) of the recess (26) at the rear end of the rear frame (2).
2. The detachable transport vehicle according to claim 1, wherein the transport vehicle is supported in a state in which it abuts against the bottom of a pocket provided in a). 3. A dump cylinder (28) is connected between the rear frame (2) and the sub-frame (4), and when the sub-frame (4) is raised and arranged by an elevating mechanism (3a, 3b) with a lift cylinder. 2. The detachable container carrier according to claim 1, wherein said sub-frame (4) can be dumped.