JPH0156007B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention allows containers to be loaded and unloaded from above the chassis frame onto the ground and from the ground onto the chassis frame, while also loading and unloading the containers from the ground onto the chassis frame. It is used in the field of container loading/unloading vehicles that can be tilted.

(b) Prior Art As shown in FIG. 7, a conventional container loading/unloading vehicle has a dump frame 02 pivotably supported at the rear end of a chassis frame 01, which can tilt backwards, and this dump frame 02 has an L-shaped structure. A cargo handling arm 04 is pivotally supported 05 so as to be rotatable back and forth, and the dump frame 02
is provided with an engagement arm 08 that engages and disengages from a hanging piece 07 of the container 06.

Therefore, when the engaging arm 08 and the hanging piece 07 are engaged, a gap H is generated between the engaging arm 08 and the hanging piece 07, as shown in FIG. 3.

As shown in FIG. 7, when the container 06 is loaded on the chassis frame 01 and the vehicle is run, the engagement arm 17 and the hook 16 are engaged, so the container 06 jumps up and the cargo handling arm The shaft support 05 between the dump frame 04 and the dump frame 02 also jumps up, causing discomfort to the driver.

In addition, as shown in FIG.
If the vehicle is suddenly started or stopped with the container 06 tilted backwards, the container 06 will jump up due to the gap H and bend at the shaft support 05 between the cargo handling arm 04 and the dump frame 02. There was a problem in that it rattled and caused discomfort to the driver.

(c) Problems to be Solved by the Invention The present invention has been made to solve the above-mentioned problems, and a hook is provided on the cargo handling arm, and a container is mounted on the chassis frame to run the vehicle. When the upper surface of the extending part of the dump frame and the stopper part of the hook are brought into contact with each other, the pivot between the cargo handling arm and the dump frame is prevented from jumping up, and the container is tilted backward on the chassis frame. When the vehicle is suddenly started or stopped, the upper surface of the dump frame extension and the stopper part of the hook are brought into contact with each other, and the lower surface of the tip of the extension and the engaging part of the hook are engaged, and the cargo handling arm is activated. This prevents the shaft support between the dump frame and the dump frame from bending and rattling, so as not to cause discomfort to the driver.

(d) Means for Solving Problems The present invention is characterized in that a dump frame that can tilt backwards is pivotally supported at the rear end of the chassis frame, and an L-shaped cargo handler is provided at the tip of the dump frame. The dump frame is provided with an engagement arm that engages and disengages from the hook of the container, and when the engagement arm and the hook of the container are disengaged, cargo handling is possible. In a container loading/unloading vehicle, the container can be loaded and unloaded by rotating the container arm, and the container can be tilted backward on the chassis frame when the engaging arm is engaged with the hanging piece of the container. The tip of the dump frame is provided with an extension that extends forward from the pivot of the cargo handling arm, and the cargo handling arm corresponding to the tip of the extension has a resilient member that allows the cargo handling arm to be rotated counterclockwise around the pivot. A release member is provided on the chassis frame, and a stopper portion that is in constant contact with the upper surface of the extension portion is provided near the pivot portion of the hook, and the end portion of the hook is provided with a release member. The hook is provided with a sloped portion that contacts the release member when the container is tipped over and rotates the hook clockwise, and the hook is further provided with a sloped portion that releases the contact between the sloped portion and the release member when the container is tilted backwards, and prevents the hook from rebounding. The hook is rotated in a counterclockwise direction by the generating member, and an engaging portion is provided continuously on the inclined portion to engage with the lower surface of the tip of the extending portion.

(e) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 and 2, 1 is a chassis frame, 2 is a subframe fixed on the chassis frame 1, 3 is a pivot support 4 on the rear end of the subframe 2,
A dump frame that can tilt backwards, 5 is an L-shaped cargo handling arm that is pivoted 6 on the tip of the dump frame 3 and can rotate back and forth, 7 is a container that can be mounted on the chassis frame 1, 8 is a cargo handling arm 5 and the subframe 2. The operation of this hydraulic cylinder 8 moves the container 7 from above the chassis frame 1 to the ground, and from the ground to the chassis frame 1.
When the dump frame 3 and the container 7 are tied together by a lashing device 9, which will be described later, the container 7 can be tilted backward by the operation of the hydraulic cylinder 8. .

Reference numeral 10 denotes an extension portion in which the tip of the dump frame 3 extends forward from the shaft support 6 portion of the cargo handling arm 5;
Cargo handling arm 5 corresponding to the tip of this extension 10
The hook 11 is pivotally supported 22.

The hook 11 has an inclined part 12 at the end and a pivot 2.
It has a stopper part 13 that is always in contact with the upper surface of the extension part 10 near the second part, and a horizontal engagement part 21 that is continuous with the stopper part 13, and has a spring 14 or other elastic member. It is urged to rotate counterclockwise by the generating member.

The stopper portion 13 extends from the center of the shaft 22
It is composed of an upper stopper part 24 above the perpendicular l drawn to the inclined surface 23 at the tip of the upper surface, and a lower stopper part 25 below.When the container 7 is laid down, the upper stopper part 24 and the inclined surface 23 come into contact, 7. When tilting backward, the lower stopper portion 25 and the inclined surface 23 are brought into contact with each other.

15 is fixed to the subframe 2, and the container 7
This is a release member that is brought into contact with the inclined portion 12 of the hook 11 and rotates the hook 11 clockwise when the hook 11 is laid down.

As shown in FIG.
The engagement arm 17 is pivotally supported to be able to swing back and forth, and engages with the hook 16.

In addition, 18 is a hydraulic cylinder that operates the engagement arm 17, 19 is a latch that stops the tip of the cargo handling arm 5 on the front surface of the container 7, and 20 is a regulating member that restricts the rotation of the hook 11 in the counterclockwise direction. It is.

The present invention has the above-described configuration, and the chassis frame 1
To explain the operation shown in FIG. 1 for loading and unloading the upper container 7 onto the ground and the container 7 on the ground onto the chassis frame 1, when the dump frame 3 is on the upper surface of the chassis frame 1, the engagement arm 17
and the hanging piece 16 of the container 7 are engaged, and the inclined part 12 of the hook 11 and the release member 15 and the hook 1 are engaged with each other.
The upper stopper part 24 of 1 and the inclined surface 2 of the extension part 10
3 are in contact with each other, so first, the hydraulic cylinder 18 is contracted and the engagement arm 17 and the hook 16 are in contact with each other.
When the hydraulic cylinder 8 is disengaged and the hydraulic cylinder 8 is then extended, the cargo handling arm 5 rotates rearward about the shaft support 6, thereby allowing the container 7 to be unloaded onto the ground. When the hydraulic cylinder 8 is contracted in the opposite manner, the cargo handling arm 5 is rotated forward and the container 7 on the ground can be loaded onto the chassis frame 1. Next, when tilting the container 7 backward on the chassis frame 1 as shown in FIG.
When the hydraulic cylinder 18 is extended to engage the engagement arm 17 and the hanging piece 16, and the hydraulic cylinder 8 is extended, the container 7 tilts rearward about the shaft support 4, and the load inside the container 7 is to expel things.

At this time, the contact between the inclined part 12 of the hook 11 and the release member 15 is released, and the hook 11 is rotated counterclockwise by the spring 14, so that the engaging part 21 of the hook 11 and the lower end of the extending part 10 are brought into contact with each other. is engaged.

Next, when the hydraulic cylinder 8 is contracted in the opposite manner to the above, the container 7 can be lowered onto the chassis frame 1.

At this time, the inclined portion 12 of the hook 11
5, and the engaging portion 21 of the hook 11 is disengaged from the lower end of the extending portion 10. By the way, when the container 7 is mounted and the vehicle is driven as shown in FIG. Although the dump frame 3 attempts to rotate about the shaft support 4, as shown in FIG.
is prevented from rotating, and the pivot support 6 of the cargo handling arm 5 and dump frame 3 is prevented from jumping up.

Further, as shown in Fig. 6, if the vehicle is suddenly started or stopped with the container 7 tilted backward, the shaft support 6 between the cargo handling arm 5 and the dump frame 3 will bend and become loose. However, as shown in FIG. This prevents the shaft support 6 from bending and wobbling.

(f) Effects of the Invention As described above, the present invention provides an extension portion by extending the tip of the dump frame forward, and engages the slope portion and the stopper portion with the cargo handling arm corresponding to the tip of the extension portion. Since a hook with a portion is provided, even if the container is mounted on the chassis frame and the vehicle is running, the shaft support between the cargo handling arm and the dump frame will not jump up, and the container will not be mounted on the chassis frame. Even if the vehicle is suddenly started and stopped while the vehicle is tilted backwards, the shaft support will not bend and rattle, and the driver will not feel uncomfortable.

[Brief explanation of drawings]

Figure 1 is an overall side view of the container loading/unloading vehicle showing the state in which the container is being loaded/unloaded, Figure 2 is an overall side view of the container loading/unloading vehicle showing the state in which the container is dumped on the chassis frame, and Figure 3 4 is a detailed sectional view of the lashing device, FIG. 4 is a detailed sectional view showing the main parts of the present invention, FIG. 5 is a detailed view of the main parts of the container shown in FIG. 1 mounted on the chassis frame, and FIG. The figure is a detailed view of the main parts of Figure 2, Figures 7 and 8 are overall side views of a conventional container loading/unloading vehicle, Figure 9 is a detailed view of the hook and extension when the container is laid down, 10
The figure is a detailed view of the hook and extension when the container is tilted backwards. 1 is the chassis frame, 3 is the dump frame, 5
is a cargo handling arm, 7 is a container, 10 is an extension part,
11 is a hook, 12 is an inclined portion, 13 is a stopper portion, 15 is a release member, 16 is a hook, and 17 is an engagement arm.

Claims (1)

[Claims] 1 A dump frame that can be tilted backwards is pivotally supported at the rear end of the chassis frame, an L-shaped cargo handling arm is pivotally supported at the tip of this dump frame so that it can rotate back and forth, and a container is attached to the dump frame. An engagement arm that engages and disengages from the hanging piece is provided, and when the engagement arm and the hanging piece of the container are disengaged, the container can be loaded and unloaded by rotating the cargo handling arm, and the engaging arm is moved from the container. In the container loading/unloading vehicle, the container can be tilted backward on the chassis frame when engaged with the hanging piece, wherein the tip of the dump frame extends forward from the shaft support of the cargo handling arm. The cargo handling arm corresponding to the tip of this extension has a hook that is biased to rotate counterclockwise around the shaft support by an elastic member, and a hook that is released on the chassis frame. A stopper portion is provided near the shaft portion of the hook, and the stopper portion is provided in constant contact with the upper surface of the extension portion, and the end portion of the hook is provided with a stopper portion that comes into contact with the release member when the container is laid down to stop the hook. Furthermore, when the container is tilted backwards, the contact between the inclined part and the release member is released, and the hook is rotated counterclockwise by the elastic member to release the tip of the extension part. A container loading/unloading vehicle, wherein an engaging part that engages with the lower surface is provided continuously on the inclined part.