JPH065258Y2 - Vessel attachment / detachment device for pallet type dump truck - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a vessel attaching / detaching device for a pallet type dump truck in which a pallet-shaped vessel is detachably mounted on a self-propelled trailer type carrier. Is.

[Conventional technology]

Conventional trailers and the like have wheels on the trailer itself, and the tractor side is connected to the trailer side by a coupler.

[Problems to be solved by the invention]

However, in a pallet type dump truck in which a pallet-shaped vessel is attachable to and detachable from a carrier, the vessel does not have wheels and the vessel must be lifted by the carrier side, so a new vessel attaching / detaching device is required.

[Means and Actions for Solving Problems] The present invention has been conceived in view of the above, in which the carrier can be positioned in the front-rear direction only by advancing it to the lower side of the vessel. By raising and lowering the sub-frame, the carrier and vessel can be fixed and released in the front-back and up-down directions, and the pallet type vessel can be automatically fixed and released to the carrier. An attempt is made to provide a vessel attaching / detaching device for a dump truck, which has a structure in which a self-propelled carrier is provided with a subframe that can be rotated backward by a lift cylinder, and a pallet-shaped vessel is provided on the subframe. In a pallet-type dump truck with detachable mounts, locks laid sideways on the bottom surface of the vessel A pin and a bracket having a hole provided in the front-rear direction are provided, and the subframe of the carrier can be raised and lowered.
The carrier is configured to have a rotating hook that engages with the locking pin when the carrier enters a predetermined position on the lower side of the vessel, and a fixing pin that fits in and out of the hole of the bracket. The locking pin and the pivoting hook are used to position the bottom of the vessel, the sub-frame is raised in this state, and then the fixing pin is moved to project into the hole to fit the vessel into the vessel. It is fixed in the front-back and up-down directions. Then, the above operation is reversed to release the fixation.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In the figure, 1 is a carrier connected to a self-propelled vehicle 2, and 3 is a pallet-shaped vessel detachably mounted on the carrier 1.

A sub-frame 5 is provided on the upper side of the frame 4 of the carrier 1, and the sub-frame 5 can be lifted and lowered in parallel in the vertical direction by lift devices 6 and 7 provided in front of and behind the frame 4. The sub-frame 5 is pivotally supported on the rear lift device 7 so as to be rotatable rearward from a horizontal state. Further, the sub-frame 5 and the frame 4 of the carrier 1 are connected by a lift cylinder 8.

Support frames 9 and 9 are provided on both left and right sides of the vessel 3 so as to face downward, and the vessel 3 is placed on the ground while being separated from the ground by a predetermined height. ing. The height of the vessel 3 in this state is higher than the height of the carrier 1 when the subframe 5 is lowered. A rear gate 10 is provided at the rear of the vessel 3.
The upper part of this is pivotally supported on the vessel 3 side so as to be openable and closable.

A connecting device 11 for connecting the subframe 4 and the vessel 3 to each other in a detachable manner is provided at the front part of the subframe 5, and a rear gate opening / closing device 12 for opening and closing the rear gate 10 of the vessel 3 is provided at the rear part of the subframe 5. It is provided.

As shown in the configuration and operation explanatory views of FIGS. 1 to 6, the connecting device 11 has a rotating hook 13 and a fixing pin 14 provided upward on the subframe 5 side, and a lower surface of a front portion of the vessel 3. And a locking pin 15 provided laterally corresponding to the rotating hook 13 and a bracket 17 into which the fixing pin 14 is fitted and having a hole 16 provided in the front-rear direction.

The rotating hook 13 includes a first hook 13a and a second hook 1
3b and the first hook 13a are higher than the other hook 13b in a state where the first hook 13a and the third hook 13b are spaced apart in the front-rear direction so as to abut on the stopper 18 formed on the front surface of the bracket 17. Has become.

The fixing pin 14 is connected to the cylinder device 14a so as to be capable of projecting and retracting rearward, and the fixing pin 1 is in a retracted state with the upper surface of the sub-frame 5 abutting the lower surface of the vessel 3.
4 is opposed to the hole 16 of the bracket 17, and by projecting it, it is fitted into the hole 16 so that the sub-frame 5 and the vessel 3 are vertically locked. Further, on both sides of the rotating hook 13 and the fixing pin 14, the sub-frame 5 which comes into contact with the stopper 18 on the side of the vessel 3 is provided.
A stopper 19 on the side is provided.

The operation of the above configuration will be described below.

(1) Mounting of Vessel To mount the vessel 3 on the carrier 1, first, the carrier 1 is moved backward from the front side of the vessel 3 supported on the ground by the support frames 9 and 9 from the front side thereof. At this time, the sub-frame 5 of the carrier 1 has the first hook 1 of the turning hook 13 of the coupling device 11 provided on the sub-frame 5.
The height is set so that 3a interferes with the stopper 18 of the vessel 3 in the entering direction (Fig. 1). In this state, when the carrier 1 is slowly advanced to the lower side of the vessel 3, the rotating hook 1
The first hook 13a of No. 3 is the stopper 18 on the side of the vessel 3
Is contacted with and is rotated, so that the locking pin 15 faces the rotation hook 13. At this time, the stopper 19 on the subframe 5 side comes into contact with the stopper 18 on the vessel 3 side to position the subframe 5 and the vessel 3 in the front-rear direction (FIG. 2). The positional relationship between the fixing pin 14 and the hole 16 of the bracket 17 at this time is as shown in FIG.
Misaligned vertically.

In this state, the subframe 5 is raised. That way,
The rotating hook 13 engages with the locking pin 15 (third part).
Figure). Further, as a result, the support frames 9 and 9 are separated from the ground, and the vessel 3 is mounted on the subframe 5. In this state, the cylinder pin 14a is operated to move the fixing pin 14 so that the fixing pin 14 is moved to the bracket 1
7 (FIG. 5), the vessel 3 is engaged with the subframe 5 in the front-rear direction and the up-down direction by the fixing pin 14, the rotating hook 13, the locking pin 15, and the stopper 18. (FIGS. 3 and 5). The engagement in the left-right direction is performed by the engagement between the frame 4 of the carrier 1 and the support frames 9, 9 of the vessel 3.

(2) Dump operation of vessel When the sub-frame 3 is rotated rearward by the lift cylinder 8, the vessel 3 is rotated integrally with the sub-frame 3 to perform the dump operation. At this time, the rear gate opening / closing device 12 is opened in conjunction with the dumping operation, the rear gate 10 and the vessel 3 are disengaged, and the rear gate 10 is opened by its own weight.

(3) Vessel return operation By shortening the lift cylinder 8 and moving the subframe 5 downward, the vessel 3 is returned horizontally. At this time, the rear gate 10 is closed by its own weight, and in conjunction with this, the rear gate opening / closing device is closed to lock the rear gate 10 in the closed state.

(4) Removal of Vessel The fixing pin 14 of the connecting device 11 is pulled out from the hole 16 to disconnect the vessel 3 from the subframe 5, and then the subframe 5 is moved downward. As a result, the vessel 3 is placed on the ground by the supporting frames 9, 9 of the vessel 3. In this state, the carrier 1 is advanced and moved from the lower side of the vessel 3, so that the vessel 3 is separated from the carrier 1.

[Effect of device]

According to the present invention, the carrier 1 is positioned below the vessel 3 to position the carrier in the front-rear direction, and the sub-frame 5 is moved up and down in this position to move the carrier 1 and the vessel 3 in the front-back direction. It is possible to fix and release the pallet-shaped vessel with respect to the carrier 1 automatically in the vertical and vertical directions.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIGS. 1 to 6 are explanatory views showing the structure and operation of the essential parts of the present invention, and FIGS. 7 and 8 show the entire pallet type dump truck. It is a side view and a top view. 1 is a carrier, 2 is a self-propelled vehicle, 3 is a vessel, 4 is a frame, 5 is a subframe, 6 and 7 are lift devices, 8 is a lift cylinder, 9 is a support frame, 10 is a rear gate, 11 is an interlocking device, 13 Is a rotating hook, 14 is a fixed pin, 14a is a cylinder device, 15 is a locking pin, 16 is a hole, 17 is a bracket, and 18 and 19 are stoppers.

Claims (1)

[Scope of utility model registration request] 1. A pallet in which a self-propelled carrier 1 is provided with a sub-frame 5 rotatably rearward by a lift cylinder 8 and a pallet-shaped vessel 3 is detachably mounted on the sub-frame 5. In the dump truck, a locking pin 15 is provided on the lower surface of the vessel 3 and a bracket 17 having a hole 16 provided in the front-rear direction is provided, and the subframe 5 of the carrier 1 can be moved up and down.
The subframe 5 is fitted into the hole 16 of the bracket 17 so that the carrier 1 is inserted into the hole 16 of the bracket 17 and the rotating hook 13 that engages with the locking pin 15 in a state where the carrier 1 has entered a predetermined position below the vessel 3. A vessel attachment / detachment device for a pallet type dump truck, which is provided with a fixing pin 14.