JP2000062963A - Cargo transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cargo transfer device capable of loading various pallets with easy operation and transferring them to a motor-truck with highly economical efficiency and safety. SOLUTION: This device consists of a device body 1 provided with two pairs of horizontal conveying means (chain conveyor 10) which conveys an object to be conveyed (pallet) horizontally, a pushing means (pusher mechainsm 20) which additionally pushes the object to be conveyed (pallet) conveyed by the two pairs of horizontal conveying means (chain conveyor 10) toward a motor-truck (truck), and an interval adjusting means (ball shaft mechainsm) which adjusts an interval between the two pairs of horizontal conveying means (chain conveyor 10), a fine adjusting means (ball shaft mechanism 35) which moves the device body 1 in the orthogonal direction to the conveyance direction of the object to be conveyed (pallet P), and a lifting means (oil hydraulic lifter 40) which moves vertically the device body.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo transfer apparatus used for loading a conveyed object such as a pallet on a truck such as a large truck. 2. Description of the Related Art Generally, when a pallet of goods loaded with goods is loaded on a large truck of 10 tons or more at a shipping site or the like, the pallet on which the goods are loaded weighs 1 ton or more. Since a plurality of heavy pallets must be loaded, a load transfer device such as a truck loader or a forklift has been used. FIG. 6 shows a cargo transfer device of these trucks. In FIG. 6A, a truck loader 60 is provided with a roller 63 driven by a driving device 62 on a bed 61 of a truck T, and a loaded pallet P transferred by a conveyor device 64 from behind the truck T. Are sequentially moved to a predetermined location on the loading platform 61. When a forklift 70 is used, as shown in FIG. 6 (b), the pallets P prepared for loading are transferred one by one to the carrier 61 of the truck T using the forklift 70. , Forklift 70
The fork 71 is inserted into the pallet P, and the fork 71 is pivotally moved while being lifted by a hydraulic cylinder (not shown) to be loaded from the side of the truck T to a predetermined position on the carrier 61. [0004] However, the above-mentioned conventional load transfer device has the following problems. First, in the track loader 60, the track T
Since the pallets P are loaded from the rear, the pallets P need to be conveyed to the front of the loading platform 61, and for this purpose, a driving device 62 for driving the rollers 63 of the loading platform 61 needs to be attached. In order to mount the driving device 62 on the truck T, the driving device 62 needs to be specially miniaturized, which increases the cost of the driving device 62, increases the weight of the truck T, and adversely affects fuel efficiency and the like. There was a problem. When the forklift 70 is used, the pallets P can be loaded at a predetermined location on the truck T. However, since it is necessary to load the pallets P and make a turning movement, a large space is required. In addition, there is a problem that the forklift 70 itself is expensive and requires special qualifications to operate, so that it cannot be easily used. Also, the forklift 70 loads the pallet P and turns to move.
There was a risk of colliding with other objects and injuring others or colliding with humans due to poor visibility ahead, and there was also a problem with safety. Further, when there are a plurality of sizes of the pallets P, it is necessary to adjust the interval between the claws of the fork 71 of the forklift 70 in accordance with the size of the pallet P. Was time-consuming. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides an economical and safe cargo transfer device capable of loading various pallets with a simple operation, and which is economical and safe. To provide. [0007] In order to achieve the above object, the present invention provides two sets of horizontal transport means for transporting a conveyed object in a horizontal direction toward a loading platform of a truck. An apparatus main body comprising: pushing means for further pushing the conveyed object conveyed by the two sets of horizontal conveying means into the bed of the lorry; and interval adjusting means for adjusting the interval between the two sets of horizontal conveying means. Fine adjustment means for moving the apparatus main body in a direction perpendicular to the direction of transport of the article to be conveyed, and elevating means for vertically elevating the apparatus main body. An embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view showing a load transfer device according to the present invention, FIG. 2 is a plan view and a side view of the load transfer device of FIG. 1, and FIG. 3 is an optical sensor of the load transfer device of FIG. FIG. 4 is a perspective view showing the operation, FIG. 4 is an explanatory view showing a state in which the interval of the load transfer device of FIG. 1 is adjusted, and FIG. 5 is a diagram in the case of loading a load using the load transfer device of FIG. It is operation | movement explanatory drawing. The same members as those of the conventional example are denoted by the same reference numerals, and detailed description will be omitted. As shown in FIGS. 1 and 2, a cargo transfer device A according to the present invention includes a pallet P, which is an object to be conveyed, and a carrier (not shown) of a truck T, which is a truck. ), Two sets (L side, R side) of chain conveyors 10 and 10 which are horizontal conveying means for conveying horizontally to
Pallets P transported by the chain conveyors 10,10
Sets of pusher mechanisms 20 and 20 as push-in means for further pushing the shaft into the bed of the truck T, and a ball shaft mechanism 30 as an interval adjusting means for adjusting the interval between the two sets of chain conveyors 10 and 10.
And a ball shaft mechanism 35 serving as fine adjustment means for finely adjusting the apparatus main body 1 in accordance with the position of the bed of the truck T.
And a hydraulic lifter 40, which is an elevating means for moving up and down in the vertical direction. The chain conveyor 10 of the apparatus main body 1
Is a side plate 1 of a ladder-like frame 11, as shown in FIG.
Drive pulleys 13 and 13 and driven pulley 1
4 and 14 are provided. A drive motor 16 is attached to a lower portion of the drive pulley 13, and the drive motor 16 rotates the drive pulleys 13 to drive the conveyor chains 15. Further, free rollers 1 are provided at both ends in the longitudinal direction of the frame 11.
7 and 17 are attached to smooth the movement of the pallet P when entering and exiting the apparatus main body 1. As shown in FIG. 2, the pusher mechanism 20 is mounted inside the frame 11 of the chain conveyor 10, and is mounted inside the side plates 12, 12, and is pushed to a predetermined position by the chain conveyor 10. The transported pallet P is further pushed into the track T by a long push rod 21. The push rod 21 is attached to a chain 25 having a base 21 a wound between a drive shaft 23 driven by a drive motor 22 and a driven shaft 24, and has a distal end 21 a.
b is formed so as to push the pallet P. At the start position, the push rod 21 does not protrude from the top end 21b of the chain conveyor 10 so that the pallet P does not collide with the pallet P when being conveyed by the conveyor chain 15. When the pallet P passes through the position of the distal end 21b of the push rod 21, the drive motor 22 is started by a position sensor (not shown) to operate the push rod 21, and the distal end 21b is moved to the chain as shown in FIG. Conveyor 10
And the pallet P can be pushed out to the track T side by a maximum of 1000 mm. As shown in FIG. 2 (a), a ball shaft mechanism 30 for adjusting the interval between the two sets of chain conveyors 10 has a screw thread provided by a driving gear motor 31 attached to the lower part of the chain conveyor 10. Are rotated so that the two sets of chain conveyors 10 engaged with the shafts 32, 32 can move in a direction approaching or moving away from each other. It was done. By this ball shaft mechanism 30, a large-sized pallet P for transportation which is conveyed from the pallet conveyor B at a constant interval.
(1130 mm in width) and a small pallet P (900 mm in width) for receiving are adjusted to an appropriate interval and transferred to the truck T. First, a large pallet P for shipping is used.
In the case of (width 1130 mm), as shown in FIG. 4A, the pallets P conveyed from the pallet conveyor B at a predetermined interval (L0) are placed on the chain conveyors 10 and 10 as they are. . At this interval, the chain T is protruded from the carrier 61 of the truck T, so that the chain conveyor 1
0 and 10 are brought closer to each other to adjust the distance (L1) so that the pallets P touch each other, and send the pallets P to the track T.
On the other hand, in the case of a small-sized pallet P for receiving, as shown in FIG. 4B, the pallet P conveyed from the pallet conveyor B at a predetermined interval (L0) is kept as it is, and the chain conveyors 10, 10 are kept. Place on top of. At this interval, the balance at the loading platform 61 of the truck T is poor, so the interval (L2
) And sends it out to the track T. Further, the cargo transfer device A is provided with a pallet P
In order to align the center position with the loading platform 61 of the truck T at the time of loading, a ball shaft mechanism 35 capable of finely adjusting the apparatus main body 1 in the width direction of the load transfer apparatus A is provided, and the apparatus main body 1 is moved up to 200 mm. I can do it. As shown in FIG. 2A, the ball shaft mechanism 35 rotates a shaft 37 having a thread formed by a driving gear motor 36 attached to a lower portion of the chain conveyor 10, and the rotation causes the shaft 37 to rotate.
And the entire two sets of chain conveyors 10 simultaneously moving rightward or leftward. The ball shaft mechanism 35 receives an O signal from an optical sensor 50 described later.
It is configured to start and stop by an N.OFF signal. Further, as shown in FIG. 2 (b), a hydraulic lifter 40 for vertically moving the apparatus main body 1 extends and contracts on a base 41 installed in a pit dug in the ground. Angle 42, 43, and a table 44 supported by the angles 42, 43 and on which the apparatus main body 1 is mounted.
A hydraulic cylinder 45 for moving the cylinder 4 up and down is attached. The hydraulic cylinder 45 is supplied with hydraulic oil generated by a hydraulic motor (not shown) via a hydraulic cable to operate a piston rod 46. The hydraulic cylinder 45 has a lifting capacity of 10 tons, and moves the apparatus body 1 on which the pallet P is mounted up and down. Has enough ability to move. Further, in the cargo transfer device A, the vertical position and the left and right positions of the device main body 1 are set on the loading platform 6 of the truck T.
The optical sensor 50 of the positioning device is attached to adjust the position to 1. As shown in FIG. 3, the optical sensor 50 is configured such that the tip portions 12 of the side plates 12, 12 of the chain conveyor 10 on one side (L side) of the two sets of the chain conveyors 10.
a and 12a, each of which is a known device provided with a light emitting unit 51 such as a light emitting diode as a light emitting element and a light receiving unit 52 such as a phototransistor as a light receiving element. On the track T side, two reflection mirrors 65, 65 having the same height as the optical sensor 50 and a width slightly smaller than the optical sensor 50 are attached to the rear side surface 61 a of the loading platform 61. The emitted light is reflected by the reflection mirror 6
5 and 65, and the reflected light is received by the light receiving unit 52 to become an ON / OFF signal.
5 and the hydraulic lifter 40 are started and stopped. The optical sensor 50 configured as described above has two
The light emitted from the two optical sensors 50, 50 is transmitted to one of the two reflecting mirrors 65, 65.
5 is received by one of the optical sensors 50 and the height of the apparatus main body 1 is changed to the loading platform 6 of the truck T.
The height of the hydraulic lifter 40 is determined to be the same as the height of the hydraulic lifter 40, and the lifting operation of the hydraulic lifter 40 is stopped. However, in a state where only one optical sensor 50 receives light, it is determined that the position in the width direction does not match, and the ball shaft mechanism 35 is activated to move the two chain conveyors 10 in the width direction. It is determined that the positions in the width direction are matched when the two light sensors 50 receive the light, and the ball shaft mechanism 35 stops. The load transfer device A is provided with a controller C for operating the load transfer device A. The controller C is connected to the apparatus main body 1 by a cable 2 and can be attached to and detached from the apparatus main body 1, so that the operator of the cargo transfer apparatus A can operate the controller C at any position. . This controller C
Are a main switch 3 for turning on / off the entire apparatus of the load transfer apparatus A, a positioning button 4 for aligning the apparatus main body 1 with the truck T, a track transfer button 5 for operating the chain conveyor 10, and a push rod 21. Manual push-in button 6 for manually fine-tuning the cargo transfer device A
And a completion button 7 for returning the operation to the initial state. The operation of the cargo transfer device A thus configured will be described with reference to FIG. First, as shown in FIG. 5 (a), the cargo transfer device A installed in a predetermined pit operates the hydraulic lifter 40 by adjusting the height of the chain conveyor 10 to the height of the pallet conveyor B on the upstream side. Then, the pallet P of the transferred object is placed. Further, the distance between the chain conveyors 10 is adjusted by the ball shaft mechanism 30 (FIG. 2) of the distance adjusting means according to the size of the pallet P. Further, two pallets P are sent from the pallet conveyor B to the two chain conveyors 10 at a time, and a total of four pallets P are placed and conveyed to the load transfer device A. Next, as shown in FIG. 5B, the truck T comes closer to the loading platform 61, but the position of the loading platform 61 does not match the height of the pallet conveyor B. When the positioning button 4 (FIG. 1) mounted on the apparatus A is pressed, the hydraulic lifter 40 operates, and the chain conveyor 10 placed on the table 44 rises. Then, as shown in FIG.
The optical sensor 50 attached to the detector detects the reflection mirror 65 of the loading platform 61, stops the hydraulic lifter 40,
Stop ascent. Further, as shown in FIG. 4, the optical sensor 50 is connected to the position of the bed 61 of the truck T and the chain conveyor 1.
In order to adjust the position in the width direction of 0, the ball shaft mechanism 35 is automatically operated to perform alignment, and when the alignment is completed, the operation of the ball shaft mechanism 35 is stopped. Next, when the truck transfer button 5 (FIG. 1) is pressed, as shown in FIG. 5C, the chain conveyor 1 is pressed.
0 operates and the pallet P is sent to the bed 61 of the truck T. Further, as shown in FIG. 5D, when the pallet P moves to a predetermined position (the tip position of the push rod 21), the tip portion 21b of the push rod 21 of the pusher mechanism 20 rises, and the drive motor 22 pushes the push rod 21. Pushes the pallet P toward the truck T. Then, as shown in FIG. 5E, the push rod 21 further moves toward the truck T, and pushes the pallet P to a position 500 to 1000 mm from the rear end of the loading platform 61. When the push rod 21 moves to the maximum position, it automatically returns to the initial position,
Is located below the upper end surface of the chain conveyor 10, so that the movement of the pallet P is not hindered. Thus, one operation is completed. The operator repeats this operation twice and transfers a total of eight pallets P to the truck T. In the third time, a total of two pallets P are transferred one by one and automatically pushed by the push rod 21, and then the pallet P is finely adjusted by pushing the push manual button. Then, by pressing the completion button 7 (FIG. 1), the cargo transfer device A is returned to the initial state. As described above, according to the cargo transfer device A, a driving device for transporting the pallet P to the truck T is not required, and a forklift or the like for loading the pallet P on the truck T is not required. Therefore, pallets P of various sizes can be loaded by simple operation of the load transfer device A, and an economical and safe load transfer device for a truck can be provided. As described above, according to the present invention, there are provided two sets of horizontal transfer means for transferring an object to be conveyed in the horizontal direction toward the loading platform of a truck, and the two sets of horizontal transfer means. A device body provided with a pushing means for further pushing the conveyed object into the carrier of the lorry, and an interval adjusting means for adjusting an interval between the two sets of horizontal transport means; and A special drive device and the like are provided on the lorry side by having a configuration including fine adjustment means that can move in the direction perpendicular to the conveyance direction of the conveyed object, and elevating means that moves the apparatus body up and down. Since there is no need to use a forklift or the like, there is an excellent effect that various conveyed objects can be loaded on a truck by simple operation, and economical and safe loading is possible. It is.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a cargo transfer device according to the present invention. FIG. 2 is a plan view and a side view of the cargo transfer device of FIG. 1; FIG. 3 is a perspective view showing an operation of an optical sensor of the cargo transfer device of FIG. 1; FIG. 4 is an explanatory diagram showing a state in which the interval of the cargo transfer device of FIG. 1 is adjusted. FIG. 5 is an operation explanatory diagram in the case where a load is loaded by using the load transfer device of FIG. 1; FIG. 6 is an explanatory view of transferring a load using a conventional load transfer device. [Description of Signs] A Load transfer device B Pallet conveyor C Controller T Truck 1 Device main body 2 Cable 3 Main switch 4 Alignment button 5 Track transfer button 6 Push manual button 7 Complete button 10 Chain conveyor 11 Frame 12 Side plate 13 Drive Pulley 14 driven pulley 15 conveyor chain 16 drive motor 17 free roller 20 pusher mechanism 21 push rod 22 drive motor 23 drive shaft 24 driven shaft 25 chain 30 ball shaft mechanism 31 geared motor 32 shaft 35 ball shaft mechanism 36 geared motor 37 shaft 40 hydraulic lifter 41 Base 42 Angle 43 Angle 44 Table 45 Hydraulic cylinder 50 Optical sensor 51 Light emitting unit 52 Light receiving unit 61 Carrier

Claims (1)

Claims: 1. Two sets of horizontal transport means for transporting an object in a horizontal direction toward a loading platform of a lorry, and the object transported by the two sets of horizontal transport means. Further, a device body provided with a pushing means for pushing the carrier body into the loading platform, and an interval adjusting means for adjusting an interval between the two sets of horizontal transport means, and a transport direction of the object to be transported. A load transfer device comprising: fine adjustment means capable of moving in a right angle direction; and elevating means for elevating and lowering the apparatus body.