JP2006282140A - Transport vehicle system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate necessity for changing a controller for current feeding or controlling about fireproof doors as boundary by structuring so that severing a feeder cable at the fireproof doors is not required. <P>SOLUTION: A transport vehicle system is structured so that a notch 46 for threading the feeder cable 32 to the vehicle is provided in one of the movable fireproof doors 10 and 12. Fire retardant agent 44/48 is provided at the sides of the notch 46 and between the doors 10 and 12. Accordingly there is no need to sever the feeder cable of this transport vehicle system at the fire proof doors, which facilitates current feeding to the transport vehicle and controlling. Owing to the notch, the feeder cable can pass through the gap in the doors, and the fire retardant agent 44/48 can preclude the spread of a fire. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to power feeding in a transport vehicle system, and more particularly to power feeding near a fire door.

  In the transport vehicle system, since the traveling rail is divided at a lower portion of the fire door, the power supply line and the communication line to the transport vehicle are also separated by the fire door. If it does in this way, when a conveyance vehicle stops in the lower part of a fire door, since electric power feeding is not performed, it may become impossible to restart. Further, when the power supply line or the communication line is divided by the fire door, the fire door becomes a boundary in the control of the transport vehicle, and it is necessary to change the control controller of the transport vehicle at the fire door. Note that the power supply line can also be used as a communication line, and if it is not necessary to divide the power supply line, it is not necessary to divide the communication line.

Patent Document 1 discloses that the automatic guided vehicle does not interfere with the operation of the fire door with respect to the automatic guided vehicle traveling on the ground. Specifically, it discloses that the automatic guided vehicle is prohibited from passing through the lower part of the fire door in the event of a fire and is retreated to a predetermined retreat location. It is the same as the present invention that the traveling path of the transport vehicle is divided by the fire door.
JP-A-11-85281

An object of the present invention is to eliminate the necessity of dividing a power supply line to a transport vehicle by a fire door.
An additional problem in the invention of claim 2 is that the feeder line can easily pass through the fire door.
An additional problem in the invention of claim 3 is to prevent the spread of fire from the notch through which the power supply line passes.

  The transport vehicle system according to the present invention is a transport vehicle system in which a power feed line is laid along a travel rail for traveling the transport vehicle, and the travel rail is divided at a position of the fire door. A plurality of movable doors are provided, and the movable doors are brought into contact with each other in the event of a fire so that the fire doors are closed, and the power supply line is placed near the position where the movable doors contact each other when the fire doors are closed. It is characterized by being laid and laid.

  Preferably, at least one movable door is provided with a notch for allowing the feed line to pass. The notches may be provided in both movable doors, for example, in a semicircular shape, or may be provided at the end of one movable door.

  Particularly preferably, a heat insulating material is disposed around the notch. Even if the heat insulating material uses a material with low thermal conductivity such as silica gel, alumina gel, glass fiber, etc., a water-containing compound such as magnesium hydroxide or aluminum hydroxide is mixed with rubber or resin, and the water-containing compound is used in the event of a fire. It may be made of a flame retardant that generates water vapor to prevent temperature rise. When silica gel, alumina gel, glass fiber, or the like is used, these are formed into a shape that fits the side surface of the notch, for example, and bonded with a binder such as resin or water glass.

  In this invention, since it is not necessary to divide the power supply line at the fire door, there is no need to change the controller for power supply or control at the fire door, and when the transport vehicle stops near the fire door, There is no position that can not be restarted because there is no.

  In the invention of claim 2, the power supply line can pass between the movable doors through the notch. For this reason, it becomes easy to let the feed line pass through the gap of the movable door.

  In the invention of claim 3, it is possible to prevent the spread of fire through the notch by delaying the transfer of heat to the other side of the fire door through the heat insulating material.

  In the following, an optimum embodiment for carrying out the present invention will be described by taking an overhead conveyance vehicle system as an example, but a system using another conveyance vehicle may be used.

  1-4 and an Example and its modification are shown in FIGS. In these drawings, 2 is a passage such as a clean room, 4 is a wall surface thereof, and a fire door 6 is provided. 8 and 8 are fixed doors on the left and right sides of the fire door, 10 and 12 are movable doors on the left and right sides, and wires 14 are attached. In the event of a fire, the switch 16 operates to automatically close the movable doors 10 and 12. Fixed rails 18 and 20 are provided before and after the fire door 6, for example, a guide 22 is provided on the fixed rail 18 side, and the movable rail 24 is guided so as to be retracted from a position where it interferes with the movable doors 10 and 12. The movable rail 24 normally takes the chain line state of FIG. 1 and retreats to the position of the solid line along the guide 22 in the event of a fire. Reference numeral 26 denotes a wire for retracting the movable rail 24 to the solid line position. 28 and 30 are tread surfaces that support the traveling wheels of a transport vehicle such as an overhead traveling vehicle.

  For example, the power supply line 32 is provided so as to overlap the tread 28 and is provided only on one of the left and right rails 18, 20, 24. The power supply line 32 is arranged, for example, in two upper and lower stages on the rails 18, 20, and 24 in order to supply power to the transport vehicle by non-contact power supply and lay it in a loop shape. In the embodiment, the power supply line 32 is also used as a communication line. However, when a separate communication line is provided, a notch 46 provided on one movable door is passed through in the same manner as the power supply line 32, and the side surface of the notch 46 is described later. A flame retardant is provided to prevent the spread of fire.

  FIG. 2 shows the movable rail 24 and the overhead traveling vehicle 34. Reference numeral 36 denotes a traveling unit of the overhead traveling vehicle. A power receiving unit 38 is provided on the left and right below the traveling unit 36 and receives power from the power supply line 32 by non-contact power feeding, and performs communication with a controller (not shown) and communication between overhead traveling vehicles using the power supply line 32. 40 is a weight, and the movable rail 24 is retracted by the wire 26 of FIG. 1 by releasing the lock of the weight 40 in the event of a fire. Reference numeral 42 denotes a ceiling of a clean room or the like.

  FIG. 3 shows a state in which the left and right movable doors 10 and 12 are in contact with each other and closed, for example, there is a notch 46 on the movable door 10 side, through which the feeder line 32 passes. A flame retardant 48 is disposed around the notch 46, and a flame retardant 44 is also disposed at the end of the movable door 12 to close the gap between the movable doors 10 and 12. The movable doors 10 and 12 may be brought into close contact with each other, and the flame retardant 44 may be provided only at a position facing the notch 46 of the movable door 12 as indicated by a broken line in FIG. Although the notch 46 is provided in one movable door here, the notch 46 may be divided into two semicircles and provided in the left and right movable doors 10 and 12, respectively.

  The flame retardants 44 and 48 are made of a mixture of magnesium hydroxide, aluminum hydroxide or the like with an elastic body such as rubber, and are insulative. When the temperature of the flame retardants 44 and 48 is increased during a fire, the flame retardant 44 decomposes to generate water vapor and absorb heat, thereby preventing the heat from being transmitted to the opposite side of the fire door and spreading. Further, since the feeder line 32 is formed of a bare stranded wire, the flame retardants 44 and 48 also have a role of insulating the feeder line 32 and the movable doors 10 and 12. In place of the flame retardants 44 and 48, an inorganic heat insulating material such as silica gel, alumina gel, or glass fiber may be used.

  In the modification shown in FIG. 4, 50 and 52 are a pair of fixed rails, the fire door 6 is provided obliquely with respect to the fixed rails 50 and 52, and the movable doors 10 and 12 can pass through the gap between the fixed rails 50 and 52. It is like that. Since the movable rails 50 and 52 are cut obliquely, up to one wheel is removed from the treads 28 and 30 among the front and rear, left and right traveling wheels of the overhead traveling vehicle at the dividing portion, and the remaining three wheels are the overhead traveling vehicle. Support the attitude. Also in this case, a notch 46 is provided at the boundary between the movable doors 10 and 12, and the flame retardant is disposed in the gap between the notch 46 and the movable doors 10 and 12 through the power supply line 32.

  Although the movable doors 10 and 12 are moved left and right in the embodiment, they may be moved up and down. In this case, for example, a notch is provided in one movable door so that the power supply line 32 becomes a boundary between the upper and lower movable doors and the power supply line 32 passes through, and the periphery thereof is covered with a flame retardant. Moreover, although the overhead traveling vehicle is shown as the transporting vehicle, the present invention may be applied to a ground traveling track truck with a traveling rail protruding from the floor surface.

In the embodiment, the following effects can be obtained.
(1) Since it is not necessary to cut off the power supply line at the position of the fire door, power supply to the transport vehicle is facilitated. Further, since the power supply line also serving as a communication line is not divided by the fire door, it is not necessary to provide another transport vehicle controller with the fire door as a boundary.
(2) Even if the overhead traveling vehicle stops at the position of the fire door, it can be restarted because the power supply is not cut off.
(3) The feed line 32 can be easily passed through the notch 46, and the flame retardants 44 and 48 can prevent the fire from spreading through the notch 46.

The principal part top view which shows the state which the fire door closed in the conveyance vehicle system of an Example. Sectional drawing of the principal part which shows the guide and movable rail in an Example The principal part front view which shows the feed wire pinched | interposed into the movable door in an Example The principal part top view which shows the state which the fire door closed in the carrier system of a modification

Explanation of symbols

2 Passage 4 Wall 6 Fire door 8 Fixed door 10, 12 Movable door 14, 26 Wire 16 Switch 18, 20 Fixed rail 22 Guide 24 Movable rail 28, 30 Tread 32 Feed line 34 Overhead vehicle 36 Traveling portion 38 Power receiving portion 40 Weight 42 Ceiling 46 Notch 44, 48 Flame retardant 50, 52 Fixed rail

Claims (3)

In the transport vehicle system in which the power supply line is laid along the travel rail for traveling the transport vehicle, and the travel rail is divided at the position of the fire door,
A plurality of movable doors are provided as the fire doors, and the movable doors are in contact with each other in the event of a fire so that the fire doors are closed, and when the power supply line is closed, the movable doors are in contact with each other. A transport vehicle system characterized in that it passes through the vicinity of the position and is laid. 2. The carrier system according to claim 1, wherein a cutout is provided in at least one of the movable doors for allowing the feeder to pass therethrough. The transport vehicle system according to claim 2, wherein a heat insulating material is disposed around the notch.

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