JPH0772002B2 - How to charge a self-propelled vehicle equipped with a power supply in a logistics system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging a self-propelled vehicle equipped with a power source used in a physical distribution system.

[0002]

2. Description of the Related Art Conventionally, a self-propelled vehicle equipped with a power source is run along a self-propelled vehicle traveling line on each of a plurality of levels of a building, and the self-propelled vehicle equipped with a power source is carried into the elevating means from any one of the multiple levels. In a physical distribution system in which a power-equipped self-propelled vehicle is charged to a desired level, the self-propelled self-propelled vehicle is charged at a predetermined location inside or outside the building where the charging device is installed. Has been adopted. Therefore, since it is necessary to stop the self-propelled vehicle equipped with a power source corresponding to the charging time, a relatively large time loss corresponding to the charging time occurs. This time loss can be eliminated by replacing the self-propelled vehicle equipped with a power source when charging. However, it is necessary to prepare in advance a self-propelled vehicle equipped with a power supply for replacement, which increases the required number of self-propelled vehicles, which is economically disadvantageous. Therefore, it is well established that it is practically difficult to reduce the time loss and improve the operating efficiency of the power-equipped self-propelled vehicle and the work efficiency of the logistics system. Currently, physical distribution work is performed due to efficiency and low work efficiency of the physical distribution system.

[0003]

The problem to be solved is that since the battery is charged by the charging device installed inside or outside the building, a relatively large time loss corresponding to the charging time is generated. The operating efficiency of the self-propelled vehicle equipped with a power supply and the work efficiency of the logistics system are low.

[0004]

According to the present invention, a power-equipped self-propelled vehicle is run on each of a plurality of floors of a building for logistics work, and the power-equipped self-propelled vehicle is lifted from any of the plurality of hierarchies. In a physical distribution system for carrying into a means and carrying out to any level, a charging device is installed in the elevating means, and the power source of the self-propelled vehicle carried in the elevating means is electrically connected to the charging device, and Characterized by charging during operation of the elevating means, a self-propelled vehicle with a power supply can be loaded from one of the multiple floors of the building into the elevating means and then discharged to any floor. By utilizing the absolute stop time for charging, the purpose of eliminating the time loss and improving the operating efficiency of the power-equipped self-propelled vehicle and the work efficiency of the distribution system was achieved.

[0005]

According to the present invention, in any one of a plurality of floors of a building, by running a power-equipped self-propelled vehicle along a self-propelled vehicle travel line, the physical distribution work of that hierarchy is completed, and the other sub-tiers of the hierarchy are The work of moving the power-equipped self-propelled vehicle to the hierarchy is carried in by bringing the power-equipped self-propelled vehicle into the elevating means and raising or lowering the elevating means from here to another hierarchy. Therefore, when the self-propelled vehicle with power supply is carried into the lifting means, the power source of the self-propelled vehicle with power supply is electrically connected to the charging device, and this connection state is maintained until it is carried out from the lifting means in the other layer. With this, it is possible to charge by utilizing the absolute stop time of a self-propelled vehicle equipped with a power supply.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing an example of a physical distribution system applied to the implementation of the present invention. In this figure, a plurality of floors 1F, 2F, 3F of the building 1 are each equipped with a self-propelled vehicle running line R1. , R2, R3 ... are set,
The power-equipped self-propelled vehicle 2 performs physical distribution work while traveling along the self-propelled vehicle traveling lines R1, R2, R3, ... In each floor 1F, 2F, 3F. Multiple floors 1F, 2F, 3F
.. communicate with each other via the elevating means 3. The power-equipped self-propelled vehicle 2 has a power source (DC power source) as shown in FIG.
2A is mounted, and an electric motor (not shown) rotated by the power source 2A is used as a drive source, based on a preset traveling program, and the traveling line R of the self-propelled vehicle shown in FIG.
1, R2, R3, .. It is a self-propelled vehicle that performs physical distribution work while traveling along, and charging terminals 2B, 2B are provided on both sides so as to project, as shown in FIG. On the other hand, the elevating means 3 of FIG. 1 elevates and descends along the tower-3A by the tower-3A and a lifting device (not shown), and stops at predetermined floors 1F, 2F, 3F ... Based on the lifting program. −
3B, a known DC power supply charging device 4 having a charging terminal 4A is installed in the interior thereof as shown in FIG. Self-propelled vehicle loading / unloading ports 3b1 and 3b2 are formed on both sides of the elevator 3B. Therefore, the power-equipped self-propelled vehicle 2 can be carried into and out of the elevator 3B by appropriately selecting the self-propelled vehicle loading / unloading ports 3b1 and 3b2 on both sides.

Next, an example of the physical distribution work will be described. The physical distribution work on the floor 1F of the building 1 is performed by the power-equipped self-propelled vehicle 2 traveling along the self-propelled vehicle traveling line R1 based on a preset traveling program. The power-equipped self-propelled vehicle 2 that has completed the physical distribution work on the floor 1F is carried into the elevator 3B of the elevating means 3 that is on standby corresponding to the floor 1F, for example, to perform the physical distribution work on the floor 2F. -It is carried in from the carry-out port 3b1. When the power-equipped self-propelled vehicle 2 is loaded into the elevator 3B, as shown in FIG. 4, one charging terminal 2B of the power-equipped self-propelled vehicle 2 is installed in the elevator 3B. Fit into the charging terminal 4A of the power charger 4,
Both terminals 2B and 4A are electrically connected, and charging of DC power supply 2A is started. When the power-equipped self-propelled vehicle 2 is loaded from the self-propelled vehicle loading / unloading port 3b1, the other charging terminal 2B of the power-equipped self-propelled vehicle 2 is installed in the elevator 3B. The charging terminal 4A of the charging device 4 is fitted to be charged.

After the terminals 2B and 4A are electrically connected to each other, the elevator 3B moves at a relatively slow speed (about 4 m / min).
The ascent starts at (min) and automatically stops when the position corresponding to the second floor is reached. The power-equipped self-propelled vehicle 2 that has been charged to the DC power supply 2A while the elevator 3B is rising from the level 1F to the level 2F
The vehicle traveling line R is unloaded from the unloading port 3b2 to the floor 2F in FIG. 1 and based on a preset traveling program.
By traveling along 2, physical distribution work on the second floor is performed. The power-equipped self-propelled vehicle 2 that has completed the physical distribution work on the floor 2F is carried into the elevating means 3 that is on standby corresponding to the floor 2F, and while moving to the floor for the next physical distribution work, the same as described above. Due to the reason, the DC power supply 2A is charged, the charged self-propelled vehicle 2 with the power supply is placed in a predetermined layer, and the self-propelled vehicle equipped with the power is installed along the self-propelled vehicle traveling line of this layer based on a preset traveling program. A physical distribution work is performed by driving the vehicle.

As described above, a plurality of layers 1F, 2 of the building 1
In either F, 3F ...
In order to move the power-equipped self-propelled vehicle 2 from this level to another level after the physical distribution work for the relevant layer is completed by running the power-equipped self-propelled vehicle 2 along 1, R2, R3 .... , Carry it into the elevator 3B of the lifting means 3,
While elevating or lowering the elevator 3B from here to another layer, charging can be performed by the DC power supply charging device 4 installed in the elevator 3B. That is, since it is possible to charge by utilizing the absolute stop time of the power-equipped self-propelled vehicle 2, as in the conventional method in which charging is performed by the charging device installed in a place other than the elevator 3B,
A relatively large time loss corresponding to the charging time does not occur. Therefore, the operating efficiency of the power-equipped self-propelled vehicle 2 is improved, and as a result, the work efficiency of the physical distribution system is also improved. Moreover, since a self-propelled vehicle equipped with a power supply for replacement is unnecessary, it is economically advantageous.

In the above embodiment, the self-propelled vehicle 2 equipped with a power source is used.
One of the charging terminals 2B, 2B projecting from the battery is installed in the elevator 3B.
Both terminals 2B, 4A by fitting to the charging terminal 4A of
However, the present invention is not limited to the above embodiment, and other electrical connection methods may be appropriately selected and adopted.

[0011]

As described above, according to the present invention, when the self-propelled vehicle with the power supply is carried into the elevating means, the power source of the self-propelled vehicle with the power supply is electrically connected to the charging device and the connection state is raised or lowered. Since the charging is performed by utilizing the absolute stop time of the power-equipped self-propelled vehicle until the vehicle is carried out from the means, a relatively large time loss corresponding to the charging time does not occur unlike the conventional method. Therefore, the operating efficiency of the self-propelled vehicle equipped with the power source is improved, and the working efficiency of the distribution system is also improved. Moreover, since a self-propelled vehicle equipped with a power supply for replacement is unnecessary, it is economically advantageous.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an example of a physical distribution system applied to the implementation of the present invention.

FIG. 2 is a plan view showing an example of a self-propelled vehicle equipped with a power supply.

FIG. 3 is a perspective view showing an example of an elevator.

FIG. 4 is a front view showing a charging state.

[Explanation of symbols]

 1 Building 1F-3F Building level 2 Self-propelled vehicle equipped with power supply 2A Power supply 3 Lifting means 3B Elevator

Claims (1)

[Claims] 1. A power-equipped self-propelled vehicle is run on each of a plurality of floors of a building for physical distribution work, and the power-equipped self-propelled vehicle is carried into any one of the plurality of hierarchies to an elevating means. In the physical distribution system to be carried out to, the charging device is installed in the elevating means, and the power source of the self-propelled vehicle loaded in the elevating means is electrically connected to the charging device to charge while the elevating means is in operation. A method of charging a self-propelled vehicle equipped with a power source in a logistics system, which is characterized in that