JPH0891377A - Opening and closing method of pallet with hood - Google Patents

Abstract

(57) [Summary] [Object] The present invention provides a cost-effective opening / closing method for constructing a pallet having a hood. [Composition] On a pallet having a hood, a power transmission mechanism for opening and closing the hood and a driving reaction force receiving mechanism are arranged around it, and a portable driving device and a driving reaction force holding mechanism around it are provided outside the pallet, The drive device and the power transmission device are detachably connected via a drive reaction force holding mechanism. The power transmission mechanism of a plurality of pallets is sequentially driven by one portable drive device to open and close the hood. [Effect] According to this method, it is possible to efficiently open and close the hood of a plurality of pallets with a minimum equipment cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for opening and closing a pallet with a hood used for transportation in the premises of a rolling mill or for shipping products.

[0002]

2. Description of the Related Art In a transportation system called carrier pallet used for on-premise transportation, a carrier device called a carrier car 27 and a loading frame called a pallet 1 can be easily attached and detached as shown in FIG. Since they can be easily separated and can be stored and transported without being reloaded while they are placed on a pallet, they have attracted attention as an efficient transportation and storage system in recent years and have been introduced in large numbers. Further, a pallet equipped with an openable hood (hood) 2 is being used so that it can be transported in the rain or stored outdoors.

[0003] This pallet with a hood can transport loaded products without exposing it directly to the weather, and in the case of shipping, it can be lined up on the quay and pre-prepared for loading and unloading from the product warehouse, leveling the loading workload and improving efficiency. Moreover, since the pallet itself can be used as a storage warehouse from the aspect of the hood, it was highly mobile and useful.

Since a pallet with a hood requires an opening / closing mechanism for the hood during loading work, conventionally, when the pallet is integrated with a carrier car, the opening / closing mechanism is driven by a motor installed in the pallet by electric energy from the carrier car, It was opening and closing. However, in most cases, the carrier car and pallet are not integrated due to effective use of the carrier car, and the actual condition of use without an energy source was to manually open and close by turning the handle connected to the opening and closing mechanism. . It takes 4 minutes to open and close the hood with a total length of 13 m by hand, and because the work is monotonous, the opening and closing work of dozens of pallets itself is a so-called 3K work.

On the other hand, the so-called solar battery method using solar energy requires a dedicated solar panel, battery and driving device for each pallet, resulting in cost increase and hindering improvement of investment efficiency. This requires a large number of pallets to be prepared for storage and transportation, resulting in enormous cost and making it difficult to invest in terms of profitability. Therefore, it was necessary to reduce the manufacturing cost per pallet with a hood to a profitable level.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to construct a hood opening / closing facility for a large number of hooded pallets in a place without an energy source in a cost-effective manner and to improve the efficiency of hood opening / closing. For that purpose, the hood opening and closing device and the energy source, which were conventionally required for each pallet, are integrated, and the portable drive unit is matched to the required torque, and safety and operability are made practical to the torque reaction force from the drive. The challenge is to raise it.

[0007]

DISCLOSURE OF THE INVENTION The present invention is intended to improve the efficiency of the operation of opening and closing the hood of a large number of pallet pallets in a place where there is no energy supply source, and to make the cost advantageous. The power transmission mechanism for opening and closing the hood arranged on the pallet having the hood and the driving reaction force receiving mechanism around the power transmission mechanism are arranged, and the portable driving device and the drive are provided outside the pallet. A drive reaction force holding mechanism is provided around the device, and the drive device and the power transmission device are detachably connected via the drive reaction force holding mechanism,
A method of opening and closing a pallet having a hood, characterized in that the power transmission mechanism of a plurality of pallets is sequentially driven by one portable drive device to open and close the hood of the pallet.

[0008]

The function of the present invention will be described in detail below. FIG. 1 is a principle diagram of the present invention. 1 is a pallet, 2 is a hood covering the pallet, 3
Is a frame of the hood, 4 is a drive device, 5 is a reaction force holding mechanism, 6
Is a coupler, 7 is a battery, 8 is a drive reaction force receiving mechanism,
9 is a power transmission mechanism, 10 and 11 are sprockets, 12 is a chain, 13 is a shaft, 13A is a bearing, 14 is a wire sheave, 15 is a wire, 16 is a wheel, 17 is a wire retaining portion, and 18 is a rail.

The hood 2 of the pallet 1 can be opened and closed from the center to both sides. The hood 2 is set on the frame 3, and the wheels 16 attached to each frame 3 can freely move along rails 18 installed on both sides of the pallet 1.

To open and close the hood 2, the power transmission mechanism 9 is rotated by using the drive device 4. Power transmission mechanism 9
Is supported by a bearing 13A, and power is transmitted to a coaxial sprocket 10. The sprockets 11 are connected to the parallel shafts 13, power is transmitted by the chains 12, and the rotational force is transmitted to the wire sheaves 14 on both sides to be converted into movement movements of the respective wires 15. The wire 15 is attached to the shut-off frames 3A and 3B by using wire retaining metal fittings 17 so that the frame 3A is connected to the upper wire and the frame 3B is connected to the lower wire.

Now, when the power transmission mechanism 9 is rotated in the direction of the arrow shown in the figure, the driving force is transmitted to the shaft 14 by the sprockets 10 and 11 and the chain 12, and the coaxial wire sheave is transmitted as rotation in the same direction. The upper wire 15A moves rightward, and the lower wire 15B moves leftward. Therefore, the right hood is connected to the wire holding metal fitting 17 with the upper wire 15 in the opening direction, and the left hood is the wire holding metal fitting 17 for the lower wire 1.
Since it is connected to 5B, it is towed to the left, that is, in the opening direction. To close the hood 2, a power transmission mechanism 9
Obviously, it is sufficient to drive in the direction opposite to the arrow.

When the power transmission mechanism 9 is driven by the drive device 4, a reaction force opposite to the driving direction is generated, and is strongly generated at the start of driving, at the time of full closing, and at the time of full opening, rather than during normal rotation. This is accompanied by danger such as twisting of the supporting wrist for the operator supporting the drive device, and it is necessary to always pay attention to the timing when fully closed and fully opened. It was a work that required mental support and physical fatigue.

At the same time that the reaction force holding mechanism 5 provided around the coupler 6 mounted on the tip of the drive unit 4 is connected to the coupler 6 and the power transmission mechanism 9, the reaction force holding mechanism 5 transmits the reaction force. It is arranged at a position to be fitted to the drive reaction force receiving mechanism 8 provided around the mechanism 9.

Therefore, for example, when the driving force of the driving device 4 and the reaction force at the time of full closure are transmitted from the wire 15 in the opposite direction to the wire sheave and the transmission system and are returned to the power transmission mechanism 9, the reaction force is the power. It is transmitted from the transmission mechanism 9 to the reaction force holding mechanism 5 and the reaction force receiving mechanism 8. Here, the reaction force receiving mechanism 8 is a hole formed in the main body of the pallet 1, and the main body of the pallet 1 has a sufficient weight for the transmitted reaction force. Therefore, the reaction force is received here, and the reaction force does not reach the worker who supports the drive device 4. The operator need only lightly support the reaction force holding mechanism 5 so as not to come off the drive reaction force receiving mechanism 8.

The reaction force holding mechanism will be described with reference to FIG. 5
Is a reaction force holding mechanism, 20 is a mounting fastener of the reaction force holding mechanism, 21 is a mounting portion of the reaction force holding mechanism, and 19 is a fastening screw of the reaction force holding mechanism. Attach the mounting fastener 20 of the reaction force holding mechanism to the mounting portion 21 of the reaction force holding mechanism of the drive device 4 with the fastening screw 19
It is fixed by tightening with and is integrated with the drive unit 4,
The opposing reaction force receiving mechanism 8 and the power transmission mechanism 9 are connected to each other to absorb the reaction force.

[0016]

EXAMPLES Next, practical examples using the present invention will be described. 2 will be described with reference to FIG. Products to be loaded on a pallet with a product storage canopy are loaded in advance against the scheduled arrival of a ship to be loaded, and the pallet 22 is moved to the work area of the cargo handling device as shown in FIG. Prepared for alignment. After the ship 26 to be loaded was docked, the hood 2 of each pallet 22 was opened in order using the portable drive device 4, and the load 23 was sequentially loaded by the cargo handling facility 24. After the loading was completed, the portable driving device 4 was used again to close the hood 2 of the carrier pallet, and the carrier pallet group 22 was returned to the product warehouse by the carrier car 27 to complete the work.

Since the electric motor can be used for opening and closing even in a place where there is no energy source, the time required for opening and closing the hood can be halved compared to the conventional method of opening and closing the hood, and the load required for opening and closing can be lightened for easier work. It was Further, it is not necessary to incorporate a drive device in the pallet, and it is sufficient to have only one drive unit or an integrated number of drive units, which is very advantageous in terms of cost.

[0018]

According to the present invention, a drive device is conventionally required for each pallet, and the manual opening / closing operation in a place where there is no energy supply source requires a lot of time and labor, and the high efficiency using solar energy is required. No cost power supply required,
It suffices to open and close the hood using a single drive device, and as an example, the time required for opening and closing the hood of 20 pallets including moving time was 150 minutes in the past, whereas in the method of the present invention. It could be processed in 80 minutes and about half the time. Further, according to the present invention, the cost of converting a conventional pallet without a hood to a pallet with a hood is reduced by half.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a berth loading / unloading aspect diagram.

FIG. 3 is a detailed view of a reaction force holding mechanism.

FIG. 4 is a relationship diagram between a carrier and a pallet.

[Explanation of symbols]

1 Pallet 2 Top 3 Frame 3A Closed Frame 3B Closed Frame 4 Drive Device 5 Drive Reaction Force Holding Mechanism 6 Coupler 7 Battery 8 Drive Reaction Force Receiving Mechanism 9 Power Transmission Mechanism 10 Sprocket 11 Sprocket 12 Chain 13 Shaft 13A Bearing 14 Wire Sheave 15 Wire 15A Upper wire 15B Lower wire 16 Wheel 17 Wire retaining part 18 Rail 19 Fastening screw 20 Mounting fastening metal fitting 21 Mounting part 22 Pallet group 23 Loading 24 Cargo handling equipment 25 Moving rail 26 Ship 27 Carrier car

Front page continuation (72) Inventor Seiji Yamamoto 5-3 Tokai-cho, Tokai-shi, Aichi New Nippon Steel Co., Ltd. Nagoya Steel Works

Claims (1)

[Claims] 1. A power transmission mechanism for opening and closing a hood arranged on a pallet having a hood, and a drive reaction force receiving mechanism arranged around the motive power transmission mechanism, and a portable driving device and the outside of the pallet. A drive reaction force holding mechanism is provided around the drive device, and the drive device and the power transmission device are detachably connected via the drive reaction force holding mechanism, and the power of a plurality of pallets is sequentially driven by one portable drive device. A method of opening and closing a pallet having a hood, characterized by driving a transmission mechanism to open and close the hood of the pallet.