JPH0432369Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a device for loading cargo onto the platform of a cargo transport vehicle such as a truck.

(Prior Art) Conventionally, in order to load cargo that has been stacked on pallets onto the loading platform of a truck, a method is widely used in which a forklift is used to load the cargo one pallet at a time.

(Problem that the invention aims to solve) However, according to the above loading method, it takes a long time to load, especially when loading a large number of items side by side on the loading platform. required a forklift and a skilled forklift operator.

This invention solves the above-mentioned conventional problems and aims to provide a cargo loading device that shortens loading time and allows easy loading work without using a forklift.

(Means for Solving the Problem) However, the cargo loading device of this invention has a space on the side of the cargo platform of the conveyance vehicle stopped at the loading position, and unloads the conveyor parallel to the cargo platform. A platform is installed, a rail is laid on the foundation of the space in parallel with the loading platform, a platform is provided with a lift whose position can be adjusted freely, and a cart is placed on the rail, which runs along the rail by a drive device. At the same time, the elevating platform includes a baggage cradle extending from the unloading section toward the loading platform, and a baggage tray that reciprocates between a retracted position at the rear of the baggage on the unloading section and a forward position above the luggage cradle. a first pushing device having a moving first pushing arm; and a second pushing arm having a movable second pushing arm that reciprocates between a retracted position above the cargo receiving tray and an advanced position above the cargo platform. This luggage loading device is characterized in that it is provided with two pushing devices, and a base of a movable spanboard is pivotally connected to the end of the luggage platform on the loading platform side.

(Function) In the cargo loading device of this invention, the first pushing arm of the first pushing device transfers the cargo on the unloading section of the conveyor onto the cargo tray of the lifting platform, and then the second pushing device The second pushing arm transfers the cargo on the cargo tray onto the cargo platform of the transport vehicle. At each time of transfer, the lifting platform is driven up and down to adjust the height of the top surface of the cargo receiving platform. Further, even if the loading platform sinks as the cargo is transferred onto the loading platform, the gangplank follows the top surface of the loading platform during transfer, and smoothly transfers the cargo onto the loading platform. The trolley runs parallel to the loading platform on the rails, positions the cargo loading position in the longitudinal direction of the loading platform, and transfers the cargo on the unloading section onto the cargo holder by the first pushing device and the second pushing device. Multiple pieces of baggage can be loaded onto one transport vehicle by alternately repeating the transfer onto the loading platform by the device and the movement of the trolley by approximately the width of the baggage to the load loading position. .

(Example) An example of this invention will be described below with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 indicates a truck, which is a transportation vehicle, and is stopped at a predetermined loading position. On the side of the loading platform 2 of the truck 1, an unloading section 4a of the conveyor 4 is installed with the same length as the rail 6, apart from the space 3. A rail 6 is laid parallel to the direction). A cart 7 is mounted on the rail 6 so as to be freely movable.
Reference numeral 8 denotes a motor for driving the bogie running, and a sprocket 10 fixed to an axle 9 that is chain-driven by this motor 8 connects to a chain 11 fixed on the foundation 5.
The drive device meshes with the drive unit 7 to form a drive device that drives the truck 7 without slipping. An elevating platform 13 is attached to the truck 7 via a link mechanism 12 for horizontal maintenance so as to be movable up and down, and is driven up and down by a hydraulic cylinder 14. At the center of the lifting platform 13, a cargo receiving platform 15 extending from the unloading section 4a of the conveyor 4 toward the loading platform 2 is fixed. The base of a spanning plate 16 is pivotally attached to the end of the cargo receiving platform 15 on the loading platform 2 side, and the spanning plate 16 is biased so that its tip is directed upward by a not-illustrated torsion spring. Also, luggage rack 15
A first pushing device 20 for pulling in cargo and a second pushing device 30 for pushing out cargo are provided on both sides. First, the first pushing device 20 is an L having a first pushing arm 21 that engages with the rear surface 17 of the cargo W on the unloading section 4a.
The first pushing body 22 in the shape of a letter is guided reciprocally in a direction perpendicular to the loading platform 2 by a horizontal guide 23 fixed to the lifting platform 13, and a pinion 25 driven by a chain by a deceleration motor 24 is guided to the first pushing body 22. The first pushing arm 21 is engaged with a rack (not shown) fixed to the lower surface, and the first pushing arm 21 is in a retracted position behind the load W shown in solid lines in FIG. It is driven back and forth between. Reference numeral 27 denotes a lever-operated limit switch attached to the first pushing arm 21 for detecting the entry of cargo. Further, the second pushing device 30 moves a second pushing body 33, which is formed by pivoting the base of a second pushing arm 31 that engages the rear surface of the cargo to a pushing rod 32 so as to be able to rise and fall freely, by means of a horizontal bar-shaped intermediate guide 34. The intermediate guide 34 is guided in a reciprocating manner in a direction perpendicular to the loading platform 2, and the intermediate guide 34 is similarly guided by a horizontal guide 35 fixed to the lifting platform 13. A pinion 37 fixed to the output shaft is engaged with a rack 38 fixed to the pushing rod 32, and a pinion 40 driven by a chain by a reduction motor 39 attached to the lifting platform 13 is connected to the intermediate guide 3.
4 is engaged with a rack 41 fixed to the lower surface of the rack 4.
Due to the relative movement of the second pushing body 33 with respect to the intermediate guide 34 and the relative movement of the intermediate guide 34 with respect to the guide 35, the second pushing arm 31 is moved to a retracted position 42 above the baggage receiving tray 15 shown by a chain line in FIG. It is driven back and forth between the forward position above the loading platform 2 shown by the solid line. 43 is a pressing surface formed on the side surface of the pushing rod 32, and is a surface for pressing the side surface of the cargo on the loading platform 2. Further, 44 is an electric linear actuator for driving the second pushing arm 31 up and down. Also 5
0 is the operation panel, 51 is the platform for workers,
52 is a hydraulic power unit, while in FIG. 4, 53 is a platform height detection device,
The block 54 is guided horizontally in a reciprocating manner.
A lever-operated limit switch 55 is attached to the block 54, and an electric linear actuator 56 drives the block 54 back and forth.

In the cargo loading device 60 having the above configuration, first, the first pushing body 22 is in the retracted position shown by the solid line in FIG.
2, and the second pushing arm 3 is in the upright position. Next, drive conveyor 4 and carry the cargo W.
in the direction of arrow X, and press the limit switch 27.
When the entry of the baggage into a predetermined position is detected, the conveyor 4 is stopped, and the first pushing body 22 is driven in the forward direction shown by the arrow Y to transfer the baggage onto the baggage holder 15. In the embodiment shown in FIG. 1, after the same operation is repeated to transfer two pieces of luggage onto the luggage tray 15, the first pushing body 22 is moved backward, and the lifting platform 13 is once raised by the hydraulic cylinder 14. Thereafter, the lifting platform 13 is stopped by operating the limit switch 55 which has been lowered and moved forward, so that the upper surface of the cargo receiving platform 15 is slightly higher than the upper surface of the cargo platform 2 of the truck 1. Next, the second pushing arm 31 is placed in a horizontal state,
The second pushing body 33 is driven in the forward direction indicated by the arrow Y to transfer the two pieces of luggage from the luggage receiving platform 15 onto the loading platform 2. At this time, the gangplank 16 goes from an upright position to a tilted state as shown by the solid line in FIG. is transferred smoothly without causing any major impact. Next, move the second pushing body 33 a short distance (for example, 100
mm) After moving backward, the cart 7 is driven in the direction of arrow Z to push the cargo on the loading platform 2 with the pressing surface 43 of the pushing rod 32 of the second pushing body 33, closing the gap G between it and the loaded cargo. Stack luggage closely together. Then the second
The pushing body 33 is returned to the retracted position to return the gangplank 16 to its independent state, and the lifting platform 13 is lowered to lower the top surface of the baggage tray 15 a little below the top surface of the conveyor 4, and the cart 7 is driven in the direction opposite to the arrow Z. Then, the vehicle is stopped at the loading position of the next row, and the same operation as above is repeated to sequentially load the cargo. The amount of back and forth movement of the second pushing body 33, the amount of lateral movement of the trolley 7, etc. are stored in the control device according to the size of the cargo, and are automatically controlled by specifying the size of the cargo or the name of the cargo on the operation panel 50. Since the loader can be moved a predetermined distance automatically, and the operations of each part can be automatically performed by sequence control, etc., the worker can easily carry out the loading work.

Using the above equipment, pallet packaging size 1400mm x
When loading 12 pieces (2 pallets x 6 times) of 1000 mm x 1800 mm height and each weighing 1 ton onto the truck bed, the loading time was 12 to 13 minutes.
In contrast, the conventional method using a forklift takes 20 to 30 minutes to load, but the device of the present invention significantly shortens the loading time.

In the above embodiment, a case has been described in which two pieces of luggage are loaded onto the platform, but large pieces of luggage can also be loaded one at a time.

This invention is not limited to the above embodiments, but includes, for example, a drive and guide mechanism for each pushing body,
The drive mechanisms for the lifting platform and the trolley may be other than those mentioned above, and the gangplank may be driven up and down by an electric motor or the like.

(Effects of the invention) As explained above, according to this invention, the time for loading cargo onto a cargo transport vehicle is shortened, and it is easy to automate the loading process without using a forklift. In particular, while the cart is intermittently moved in one direction by approximately the width of the cargo along the loading platform, the first pushing device transfers the cargo from the unloading section to the cargo receiving tray, and the second pushing device Since the cargo is transferred onto the loading platform using a method, it does not take much time to load, resulting in high efficiency. In addition, since the cargo is made to slide from the unloading section of the conveyor, through the cargo holder, and onto the cargo platform, it can be widely applied to ordinary conveyors with a flat loading surface. Since only the frictional force associated with the sliding of the load is applied, it is possible to handle heavy loads.

[Brief explanation of drawings]

Fig. 1 is a plan view of a luggage loading device showing an embodiment of this invention, Fig. 2 is a side view, Fig. 3 is a front view of the truck portion, and Fig. 4 is a view taken from arrow A in Fig. 3.
-A partial side view. 1... Truck (transport vehicle), 2... Loading platform,
3... Space section, 4... Conveyor, 4a... Unloading section, 6... Rail, 7... Dolly, 8... Motor,
13... Lifting platform, 14... Hydraulic cylinder, 15...
...Luggage rack, 16...Ganboard, 17...Rear, 20
...First pushing device, 21... First pushing arm, 22...
...First pushing body, 23...Guide, 24...Deceleration motor, 26...Advanced position above the luggage tray, 30
...Second pushing device, 31...Second pushing arm, 32...
... Pushing rod, 33 ... Second pushing body, 34 ... Intermediate guide, 35 ... Guide, 36 ... Form reducer, 39 ... Reduction motor, 42 ... Retracted position above baggage tray, 60 ... ...Luggage loading device.

Claims (1)

[Scope of utility model registration request] A space is set aside on the side of the loading platform of the transport vehicle stopped at the loading position, and an unloading section is installed on the conveyor parallel to the loading platform, and a rail is laid on the foundation of the space in parallel to the loading platform. , a platform is provided with a platform whose vertical position can be adjusted freely, and a cart that runs along the rail by a drive device is placed on the rail, and the platform has a cargo receiving platform extending from the unloading section to the platform. a first pushing device having a first pushing arm that reciprocates between a retracted position at the rear of the cargo on the unloading section and an advanced position above the cargo receiver; A second pushing device is provided with a second pushing arm that can be raised and lowered to reciprocate between a retracted position and a forward position above the loading platform. A baggage loading device characterized by having the base of a gangplank pivotally connected.