KR20190024824A - Article transport facility - Google Patents

Abstract

The present invention relates to an article transport facility capable of properly descending a fire door to a closing position. According to the present invention, the article transport facility comprises: a transport conveyor including first and second upstream conveyor units, a downstream conveyor unit, and a middle conveyor unit, wherein the middle conveyor unit is able to be moved to a transport position and a recessed position; and a power supply unit including a main power supply unit to supply operating power to the first and second upstream corresponding to units, the downstream conveyor unit, and the middle conveyor unit, and an auxiliary power supply unit to supply operating power to the first upstream conveyor unit, the downstream conveyor unit, and the middle conveyor unit, wherein the auxiliary power supply unit includes an electricity storage device charged by power supplied from the main power supply unit. The middle conveyor unit is placed in the transport position when the power is supplied from the power supply unit and moves from the transport position to the recessed position as the power supplied from the power supply unit is blocked.

Description

{ARTICLE TRANSPORT FACILITY}

An object of the present invention is to provide a fire extinguishing apparatus which is provided with a fire door which is opened and closed by moving in the vertical direction, a conveyor conveyor provided below the fire door at the open position to convey the article, (Power supply unit).

An example of such an article transporting facility is disclosed in Japanese Patent Application Laid-Open No. 2016-088649 (Patent Document 1). In the article transporting apparatus of Patent Document 1, the intermediate conveyor section (the tokening means 30) of the transporting conveyor has a transporting position which crosses the door locus which is the locus of movement of the fire door and which supports the article transported by the transporting conveyor, And is movable to a retreat position that does not intersect the door trajectory. In a state where the intermediate conveyor portion is in the retreat position, the fire door (shutter 7) is movable from the open position to the closed position downward without interfering with the intermediate conveyor portion.

The intermediate conveyor portion of the conveyor conveyor 2 is configured to move from the conveyance position to the retreat position as the supply of electric power is interrupted in the conveyance position in a state where power is supplied.

As described above, in the product transportation facility, when a fire occurs, the fire door is moved from the open position toward the closed position to prevent the fire from burning. However, in the event of a fire, the feed line or the communication line is disconnected due to fire, so that power supply to the conveyor conveyor or transmission of the drive signal becomes impossible, and the conveyor conveyor may not be able to operate normally. When such a conveying conveyor can not be operated normally, there is a possibility that the article conveyed by the conveying conveyor stops at a position overlapping the door trajectory. When the fire door is brought into contact with the article on the conveying conveyor, May not be lowered.

Thus, it is expected to realize an article transporting facility capable of appropriately lowering the fire door to the closed position.

In consideration of the above, the feature of the product transporting equipment is that it includes a fire door which is opened and closed in the vertical direction, a conveying conveyor provided below the fire door at the open position for conveying the article, And a power feeder for supplying power,

Wherein the fire extinguishing door is movable downward from the open position to a closed position and the conveying conveyor includes a first upstream conveyor portion provided on an upstream side in a conveying direction with respect to a door locus which is a movement locus of the fire door, A downstream conveyor section provided downstream of the door locus in a conveying direction and a downstream conveyor section provided downstream of the first upstream conveyor section in the conveying direction of the conveyor conveyor, And a middle conveyor portion provided between the downstream conveyor portions. The intermediate conveyor portion is moved to a conveying position that crosses the door trajectory and supports the article conveyed by the conveyor conveyor, and a retreat position that does not intersect with the door trajectory Wherein the power feeding section is configured such that the first upstream conveyance A main power feeder for supplying driving power to the first upstream conveyor, the second downstream conveyor, the downstream conveyor, and the intermediate conveyor; And a secondary feeding part capable of supplying driving power to the first upstream conveyor part, the downstream conveyor part and the intermediate conveyor part excluding the two upstream conveyor parts, And a power storage device that is charged by electric power supply, wherein the intermediate conveyor portion is in the conveying position in a state in which power is being supplied from the power feed portion, and when the power supply from the power feed portion is cut off, And moves to the retreat position.

According to the above feature, the second upstream conveyor portion is supplied with power only from the main power feeder portion, but power is supplied from both the main feeder portion and the feeder portion to the first upstream conveyor portion and the downstream conveyor portion. Therefore, when the power supply from the main feeder is interrupted, the second upstream conveyor portion can not be transported because the stationary portion is stationary, but the first upstream conveyor portion and the downstream conveyor portion can not convey the power accumulated in the power storage device So that the first upstream conveyor portion and the downstream conveyor portion can be driven by this power to convey the article. Further, the intermediate conveyor portion is in the conveying position because electric power accumulated in the power storage device of the auxiliary feeding portion is supplied. Therefore, when the power supply from the main feeder is interrupted, the second upstream conveyor portion is stopped so that the article is not conveyed from the second upstream conveyor portion to the first upstream conveyor portion, and the first upstream conveyor portion, The conveyor section and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, even when the article exists in the door trajectory when the power supply from the main feeder is interrupted, the article can be conveyed from the door trajectory to the downstream side in the conveying direction to withdraw the article from the door trajectory, It is possible to prevent the fire door moving to the closed position from interfering with the article.

The first upstream conveyor portion, the second upstream conveyor portion, and the downstream conveyor portion stop, and the intermediate conveyor portion is retracted from the conveying position by cutting off the power from the feeder portion and cutting off power from the feeder portion to the conveyor conveyor The intermediate conveyor portion can be retracted from the door locus and the fire door moving from the open position to the closed position can be prevented from interfering with the intermediate conveyor.

As described above, when the fire door is moved from the open position to the closed position downward along the door trajectory, the article or the intermediate conveyor can be prevented from interfering with the fire door so that the fire door can be properly lowered to the closed position Do.

The present invention is also directed to an article transporting apparatus characterized by comprising: a fire door which is opened and closed in a vertical direction; a conveying conveyor provided below the fire door at the open position for conveying the article; And a control device for controlling the conveying conveyor, wherein the fire door is movable downward from the open position to a closed position, and the conveying conveyor includes a door A second upstream conveyor section provided upstream of the first upstream conveyor section in the conveying direction, and a second downstream conveyor section provided downstream of the first upstream conveyor section in the conveying direction with respect to the door locus, A conveyor apparatus comprising: a conveyor section; Wherein the intermediate conveyor portion includes a conveying position for crossing the door trajectory and for supporting an article to be conveyed by the conveying conveyor and a conveying position for supporting the article conveyed by the conveying conveyor, And is configured to move from the transporting position to the retracted position in response to the interruption of the power supply from the feeding part in the transporting position in a state where power is supplied from the feeding part, And the control device executes evacuation control when it is determined that the conveying conveyor can not be operated normally, and the evacuation control is performed after the conveying conveyor has determined that the conveying conveyor can not be operated normally, Until the elapsed time elapses, Wherein the driving force is supplied to the downstream conveyor portion, the downstream conveyor portion and the intermediate conveyor portion, and after the set time has elapsed, the driving force for the first upstream conveyor portion, the downstream conveyor portion, It is a control to cut off power supply.

According to the above arrangement, by performing the evacuation control, the articles of the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, even when the control device determines that the normal operation of the conveying conveyor is not possible, even if the article exists in the door trajectory, the evacuation control is carried out to transport the article to the downstream side in the conveying direction than the door trajectory, And can be withdrawn from the trajectory. After the set time has elapsed, the first upstream conveyor portion, the second upstream conveyor portion, and the downstream conveyor portion stop as the electric power from the feeder portion to the conveyor conveyor is cut off, and the intermediate conveyor portion is moved from the conveyance position to the retreat position The intermediate conveyor portion can be retracted from the door locus and the fire door moving from the open position to the closed position can be prevented from interfering with the intermediate conveyor.

Therefore, when the conveying conveyor can not be operated normally, the article can be prevented from interfering with the fire door when the fire door is moved from the open position to the closed position downward along the door locus passage, The door can be properly lowered to the closing position.

1 is a side view of an article transporting facility.
2 is a plan view of the product transporting facility.
3 is a side view of the product transporting apparatus.
[Fig. 4] A block diagram of an article transporting facility.
5 is a flowchart of evacuation control.

1. Embodiment

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an article transporting facility will be described with reference to the drawings.

As shown in Fig. 1, the product transporting equipment includes a fire door 1 which moves in the vertical direction Z and opens and closes the opening 7, and a transport conveyor 2 for transporting the products W. 4, the product transport system includes a feeder 3 for supplying driving electric power to the transporting conveyor 2 and a control device H for controlling the transporting conveyor 2 .

In the following description, the carrying direction of the article W is the " carrying direction X ". The upstream side in the carrying direction X is referred to as the " upstream side X1 in the carrying direction ", and the downstream side in the carrying direction of the article W is referred to as the " downstream side X2 in the carrying direction ".

As shown in Figs. 1 to 3, the conveying conveyor 2 is provided across the first area A1 and the second area A2 in a state of passing through the opening 7 of the wall body 6. As shown in Fig. 2, the first region A1 and the second region A2 are partitioned by the wall body 6, and the fire door 1 is provided with an opening 7 formed in the wall body 6 Open and close. The fire door 1 is movable from the open position (the position of the fire door 1 shown in Fig. 1) downward to the closed position (the position of the fire door 1 shown in Fig. 3) 6 of the wall 6 is closed and the opening 7 of the wall 6 is closed at the closed position. In the present embodiment, a fire shutter is used as the fire door 1.

The conveying conveyor 2 is provided below the fire door 1 in the open position. The conveying conveyor 2 includes a first upstream conveyor section 11, a second upstream conveyor section 12, a first downstream conveyor section 13, a second downstream conveyor section 14, an intermediate conveyor section 15). The conveying conveyor 2 is arranged in the order of the second upstream conveyor portion 12, the first upstream conveyor portion 11, the intermediate conveyor portion 15, the first downstream conveyor portion 13 and the second downstream conveyor portion 14 , The article W is transported along the transport direction X from the upstream side X1 in the transport direction toward the downstream side X2 in the transport direction. In the present embodiment, a roller conveyor is used as the conveying conveyor 2.

Each of the first upstream conveyor portion 11, the second upstream conveyor portion 12, the first downstream conveyor portion 13, the second downstream conveyor portion 14, and the intermediate conveyor portion 15 includes a conveyor And is supported by the frame 16.

The first upstream conveyor section 11 is provided on the upstream side X1 in the carrying direction with respect to the door locus 8 which is the movement locus of the fire door 1. [ The second upstream conveyor section 12 is provided on the downstream side X2 of the first upstream conveyor section 11 in the conveying direction. The first upstream conveyor section 11 and the second upstream conveyor section 12 are installed in the first area A1.

The first downstream conveyor portion 13 is provided on the downstream side X2 in the carrying direction with respect to the door locus 8. [ The second downstream conveyor section (14) is provided on the downstream side X2 in the conveying direction with respect to the first downstream conveyor section (13). The first downstream conveyor portion 13 and the second downstream conveyor portion 14 are installed in the second area A2.

The intermediate conveyor section 15 is provided between the first upstream conveyor section 11 and the first downstream conveyor section 13 in the conveying direction X of the conveyor conveyor 2. The intermediate conveyor section 15 is provided over the first area A1 and the second area A2.

The first downstream conveyor portion 13 corresponds to the downstream conveyor portion provided on the downstream side X2 in the conveying direction with respect to the door locus 8. [

The first upstream conveyor portion 11, the second upstream conveyor portion 12, the first downstream conveyor portion 13 and the second downstream conveyor portion 14 are provided with one or a plurality of conveyor units 2U. The conveyor unit 2U includes a plurality of conveying rollers 17 and a driving unit 18 for rotationally driving one of the plurality of conveying rollers 17. [ In the present embodiment, a motor roller is used as one of the plurality of conveying rollers 17 provided in the conveyor unit 2U, and the driving unit 18 is built in the motor roller.

A plurality of conveying rollers (17) provided in the conveyor unit (2U) are interlockingly connected by an interlocking portion (22). In the present embodiment, the interlocking portion 22 is composed of a plurality of interlocking belts wound around two conveying rollers 17 adjacent to each other in the conveying direction X. The conveyor unit 2U rotates one conveying roller 17 (motor roller) by driving the driving unit 18 so that all of the conveying rollers 17 provided in the conveyor unit 2U rotate . The conveyor unit 2U conveys the articles W along the conveying direction X by rotating the conveying rollers 17 in this manner.

The driving section 18 provided in the first upstream conveyor section 11 is referred to as a "first driving section 18A" and the driving section 18 provided in the second upstream conveyor section 12 is referred to as " Drive section 18B ", the drive section 18 provided in the first downstream conveyor section 13 is referred to as a" third drive section 18C ", and the drive section 18B provided in the second downstream conveyor section 14 18 are referred to as " fourth drive portion 18D ".

The intermediate conveyor section 15 is provided with two conveying rollers 17 and a driving section 18 for rotationally driving these two conveying rollers 17. In the present embodiment, motor rollers are used for the two conveying rollers 17 provided in the intermediate conveyor unit 15, and the driving unit 18 is built in each of the two conveying rollers 17. The intermediate conveyor unit 15 transports the articles W along the conveying direction X by rotating the two conveying rollers 17 separately by driving the two driving units 18. [ The drive unit 18 provided in the intermediate conveyor unit 15 is referred to as a " fifth drive unit 18E ".

The intermediate conveyor section 15 includes a support frame 29 for supporting one of the two conveying rollers 17, a swing frame 19 for supporting the remaining one of the two conveying rollers 17, A swinging roller 20 for rotating the swinging roller 19 around the axis P and a swinging drive part 21 for rotating the swinging roller 20. [ The supporting frame 29 is provided on the upstream side X1 in the carrying direction with respect to the door locus 8 and the swing frame 19 is rotatably supported on the support frame 29 via the swinging roller 20 Are supported. The swinging roller 20 is constituted by a motor roller, and the swinging drive part 21 is incorporated in the swinging roller 20. [ The intermediate conveyor section 15 rotates the swing frame 19 around the axis P by rotating the swinging roller 20 (motor roller) about the axis P by driving the swinging drive section 21 . By rotating the swing frame 19 around the axis P, the posture of the swing frame 19 is changed to the posture (see Fig. 1) and the retracted posture (see Fig. 3).

The intermediate conveyor section 15 is provided with a first regulating section 23 and a second regulating section 24. The first restricting portion 23 restricts the swing frame 19 from rotating in the first rotation direction (counterclockwise in Figs. 1 and 3) from the transfer posture by contacting the swing frame 19 in the transfer posture. The second regulating portion 24 regulates the rotation of the swing frame 19 in the second rotation direction (clockwise in Figs. 1 and 3) from the retracted posture by contacting the swing frame 19 in the retracted posture. When the swing frame 19 is rotated from the retracted position to the carrying position, the direction in which the swing frame 19 rotates is referred to as the first rotating direction. When the swing frame 19 is changed from the carrying position to the retracted position, And the direction in which the frame 19 rotates is defined as the second rotation direction.

The state in which the pivotal frame 19 is pivoted in the carrying position is a state in which the intermediate conveyor portion 15 is in the "carrying position" and the pivotal frame 19 is pivoted in the retracted position, (15) is in the "retracted position", and the intermediate conveyor part (15) is configured to be movable to the conveying position and the retracting position.

The conveying position is a position where the intermediate conveyor portion 15 intersects the door locus 8 and supports the article W conveyed by the conveying conveyor 2 as shown in Fig. A part of the intermediate conveyor part 15 is located in the door locus 8 and the conveyor roller 17 provided in the intermediate conveyor part 15 is rotated and driven Thereby conveying the article W supported by the conveying roller 17 along the conveying direction X.

The retracted position is a position where the intermediate conveyor portion 15 does not intersect the door locus 8, as shown in Fig. Even in a case where the intermediate conveyor portion 15 is retracted from the door locus 8 and the fire door 1 is moved from the open position to the closed position in the state where the intermediate conveyor portion 15 is in the retreat position, It is possible to prevent the fire door 1 from contacting the intermediate conveyor portion 15. [

As shown in Fig. 4, the control apparatus H includes a first control unit H1, a second control unit H2, a third control unit H3, and a fourth control unit H4.

The first control unit H1 and the third control unit H3 are installed on the upstream side X1 in the carrying direction with respect to the door locus 8 and the second control unit H2 and the fourth control unit H4 are provided on the door locus 8, Is provided on the downstream side X2 in the conveying direction with respect to the conveying path (8).

Each of the first control unit H1, the second control unit H2, the third control unit H3 and the fourth control unit H4 is connected to an upper controller (not shown) via a communication line. A normal drive signal from an upper controller (not shown) is input to each of the first control unit H1, the second control unit H2, the third control unit H3, and the fourth control unit H4 have. The first control unit (H1) controls the first upstream conveyor section (11) and the intermediate conveyor section (15) based on the normal drive signal. The second control unit (H2) controls the first downstream conveyor section (13) based on the normal drive signal. The third control unit H3 controls the second upstream conveyor portion 12 based on the normal driving signal. The fourth control unit H4 controls the second downstream conveyor portion 14 based on the normal drive signal. The controller H transmits a normal driving signal such as a signal instructing the driving of the conveying conveyor 2 or a signal instructing the stop of the conveying conveyor 2 to be transmitted from the higher controller. In the present embodiment, the normal drive signal is always input to the control device H in normal operation.

The control device H controls the conveying conveyor 2 based on the normal drive signal from the upper controller to perform conveyance control for conveying the article W. [

The first control unit H1 is provided with a time cutoff unit 25 for cutting off power supply from the auxiliary power supply unit 27 to be described later to the first drive unit 18A and the fifth drive unit 18E. The second control unit H2 is also provided with a time cutoff unit 25 for cutting off power supply from the auxiliary power supply unit 27 to the third drive unit 18C. The time limit interrupting portion 25 supplies power from the auxiliary power supplying portion 27 to the driving portion 18 after a predetermined set time has elapsed since the start of power supply from the auxiliary power supplying portion 27 to the driving portion 18 Cut off the supply.

The set time is the time required for the article W positioned at the end of the upstream side X1 of the first upstream conveyor section 11 in the conveying direction to be conveyed from the door locus 8 to the downstream side X2 in the conveying direction , Or more than that time. In the present embodiment, the set time is set to 3 seconds. The set time is set to fall down to the set height (the height at which the upper end of the article W conveyed to the conveying conveyor 2 is located) after the fire door 1 starts to descend Is set to a time shorter than the time required for the operation. In this embodiment, the time limit interrupter 25 is constituted by a relay circuit.

The power feeder 3 includes a main power feeder 26 and a power feeder 27.

The primary wage 26 is driven by the first upstream conveyor portion 11, the second upstream conveyor portion 12, the first downstream conveyor portion 13, the second downstream conveyor portion 14 and the intermediate conveyor portion 15 So that power can be supplied. The auxiliary feeder portion 27 includes a first upstream conveyor portion 11, a first downstream conveyor portion 13 and an intermediate conveyor portion 15, except for the second upstream conveyor portion 12 and the second downstream conveyor portion 14, The power for driving can be supplied.

The auxiliary feed portion 27 is provided with the first upstream conveyor portion 11 and the first downstream conveyor portion 13 and the intermediate conveyor portion 15 from the main feeder 26. [ Which is provided in the middle of the feed path for supplying electric power to the power source. The auxiliary power supply unit 27 is provided with a power storage device 28 for charging by power supply from the main power supply unit 26. [ When the power supply from the main power feeder 26 is cut off, the auxiliary power feeder 27 discharges the electric power stored in the power storage device 28, so that the second upstream conveyor part 12 and the second Supplies driving power to the first upstream conveyor section 11, the first downstream conveyor section 13, and the intermediate conveyor section 15, except for the downstream conveyor section 14. [ In the present embodiment, a capacitor is used as the power storage device 28.

The intermediate conveyor portion 15 is in the carrying position in a state where power is being supplied from the power feeder 3 and moves from the carrying position to the retracted position as the power supply from the power feeder 3 is cut off. The pivoting roller 20 rotates in the first rotational direction by the pivoting drive unit 21 and the pivoting roller 20 rotates in the first rotational direction in the state where the driving power is supplied to the intermediate conveyor unit 15. [ The pivotal frame 19 is moved from the retracted position to the carrying position and the pivotal frame 19 is brought into contact with the first restricting portion 23 to hold the pivotal frame 19 in the carrying position. In this state, when the power from the power feeder 3 is supplied, the swing frame 19 is maintained in the conveying posture by the driving force of the swing drive section 21, so that the intermediate conveyor section 15 is maintained at the conveying position do.

When the supply of the driving power to the intermediate conveyor section 15 is interrupted, the driving force of the swing drive section 21 is lost. Therefore, the swing frame 19 is moved to the retreat position And the swing frame 19 is brought into contact with the second restricting portion 24 so that the swing frame 19 is held in the retracted position. Since the swing frame 19 is held in the retracted position by the weight of the swing frame 19 and the load of the swinging roller 20 in the state where the power supply from the power feeder 3 is interrupted, The portion 15 is held in the retracted position.

As shown in Fig. 4, the auxiliary feeding portion 27 includes a first sub-feeding unit 27A and a second sub-feeding unit 27B. The first auxiliary power feeding unit 27A is provided on the upstream side X1 in the carrying direction with respect to the door trajectory 8 and the second auxiliary power feeding unit 27B is provided on the downstream side X2 in the carrying direction with respect to the door trajectory 8 . The first power feeding unit 27A and the first control unit H1 are integrally held by the first holding member C1 and are integrally formed with the first upstream conveyor unit 11 as shown in Figs. As shown in FIG. The second power supply unit 27B and the second control unit H2 are integrally held by the second holding member C2 so that the first downstream conveyor unit 13, As shown in FIG.

The first upstream conveyor section 11 is controlled by the first control unit H1 in response to power supply from the main power supply section 26 or power supply from the first sub-power supply unit 27A. The first downstream conveyor section 13 is controlled by the second control unit H2 by receiving power from the main power feeder 26 or from the second sub-feeder unit 27B. The second upstream conveyor section 12 is controlled by the third control unit H3 under the power supply from the main power feeder 26. [ The second downstream conveyor section 14 is controlled by the fourth control unit H4 under the power supply from the main power feeder 26. [

The intermediate conveyor section 15 is provided on the retracted side on the side where the intermediate conveyor section 15 is in the retracted position among the upstream side X1 in the conveying direction and the downstream side X2 in the conveying direction with respect to the door locus 8 And is controlled by a control unit set on the same side (retracted side) receiving power supply from the secondary power-feeding unit. 3, the intermediate conveyor portion 15 in the retracted position exists on the upstream side X1 in the carrying direction with respect to the door locus 8, and as shown in Fig. 4, The intermediate conveyor section 15 is controlled by the first control unit H1 under the power supply from the first sub-power-feeding unit 27A.

The first upstream conveyor section 11, the second upstream conveyor section 12, the first downstream conveyor section 13, and the second downstream conveyor section 13, respectively, in the state where driving power is supplied from the main feeding section 26 to the conveying conveyor 2. [ ), The second downstream conveyor portion 14, and the intermediate conveyor portion 15, respectively. In this state, the first drive part 18A of the first upstream conveyor part 11, the second drive part 18B of the second upstream conveyor part 12, the third drive part 18C of the first downstream conveyor part 13 The fourth drive section 18D of the second downstream conveyor section 14 and the fifth drive section 18E of the intermediate conveyor section 15 are driven by the supply of the drive power from the main power feed section 26 And the article W can be transported from the second upstream conveyor portion 12 to the second downstream conveyor portion 14. [

When the supply of driving power from the main feeding part 26 to the conveying conveyor 2 is blocked, the driving power is not supplied to the second upstream conveyor part 12 and the second downstream conveyor part 14 The electric power stored in the power storage device 28 is supplied to the first upstream conveyor portion 11, the first downstream conveyor portion 13, and the intermediate conveyor portion 15 as drive power. In this state, the first drive portion 18A of the first upstream conveyor portion 11, the third drive portion 18C of the first downstream conveyor portion 13, and the fifth drive portion 18E of the intermediate conveyor portion 15 Can be driven by the supply of driving electric power from the auxiliary feeding portion 27 and the article W can be transported from the first upstream conveyor portion 11 to the first downstream conveyor portion 13. [ In this state, no electric power is supplied to the second upstream conveyor portion 12 or the second downstream conveyor portion 14 from any of the main feeder 26 and the auxiliary feeder 27 The second drive portion 18B of the second upstream conveyor portion 12 and the fourth drive portion 18D of the second downstream conveyor portion 14 can not be driven and the product W and the articles W on the second downstream conveyor section 14 stop on these conveyor sections without being conveyed.

The article transporting equipment includes a door movement operating section 31 for moving the fire door 1 in the open position toward the closed position, a door detection section 32 for detecting the fire door 1 moved downward from the open position, A power cutoff unit 33 for cutting off power supply from the main power feeder 26 to the conveyor conveyor 2, a fire detection device 34 for detecting a fire, And a manual operation unit 35 operated by an operator.

The fire detection device 34 is constituted by a fire operation switch operated by a worker when a fire occurs or a fire detection unit for detecting heat or smoke generated by a fire or the like. The fire detection device 34 sends a notification signal to the door movement operating section 31, the power interruption section 33, the first control unit H1 and the second control unit H2 when the fire is not detected When the fire control switch is operated or the fire detection unit detects a fire by detecting heat or smoke, the transmission of the notification signal is stopped.

The door movement operating section 31 keeps the fire door 1 in the open position and when it does not receive the notification signal from the fire detection device 34 or when the manual operation section 35 is operated When the operation signal is received, the maintenance on the fire door (1) is released. The fire door 1 whose holding by the door movement operating section 31 is released moves downward by its own weight and moves from the open position to the closed position. In this way, when the fire detection device 34 detects a fire or when the manual operation portion 35 is operated, the fire door 1 is closed.

The door detection unit 32 includes a first door detection sensor 32A and a second door detection sensor 32B. The first door detection sensor 32A detects the door trail 8 on the upstream side X1 And the second door detection sensor 32B is provided on the downstream side X2 in the carrying direction with respect to the door locus 8. [ In the present embodiment, a limit switch is used as the first door detection sensor 32A and the second door detection sensor 32B. When the first door detection sensor 32A detects the fire door 1, the door detection signal is transmitted from the first door detection sensor 32A to the first control unit H1, and the second door detection sensor 32B detect the fire door 1, the door detection signal is transmitted from the second door detection sensor 32B to the second control unit H2. The first door detection sensor 32A and the second door detection sensor 32B can detect the fire door 1 at the same time when the fire door 1 descends from the open position, The sensor 32A and the second door detection sensor 32B are installed at the same height.

The power interruption portion 33 is provided in a power feed path from the main power feeder 26 to the conveyor conveyor 2. [ The feed interruption portion 33 is provided with an operation switch operated by the operator when the conveyance conveyor 2 is stopped in an emergency and the conveyance conveyor 2 ) Of the power supply. The power interruption unit 33 blocks the supply of power from the main power feeder 26 to the conveyor conveyor 2 as the reception of the notification signal is stopped. In this manner, supply of the driving power from the main feeding part 26 to the conveying conveyor 2 is interrupted as the fire detecting device 34 detects a fire. When the power feed from the main power feeder 26 is blocked by the power cutoff unit 33, a cutoff signal is transmitted from the power feed cutoff unit 33 to the first control unit H1 and the second control unit H2 do.

The first control unit H1 detects that the fire door 1 is moved downward from the open position based on the door detection signal from the first door detection sensor 32A and the second control unit H2 On the basis of the door detection signal from the second door detection sensor 32B, detects that the fire door 1 moves downward from the open position. When a fire is detected by the fire detection device 34 and the notification signal is not transmitted to the first control unit H1 or the second control unit H2, the fire door 1 is automatically closed, The first control unit H1 and the second control unit H2 detect that the fire door 1 is moved downward from the open position by not receiving the notification signal from the fire detection device 34 can do. That is, the first control unit H1 or the second control unit H2 has a function as the detecting unit 36 for detecting that the fire door 1 moves downward from the open position.

When the detection unit 36 detects the falling movement, the power supply from the main power supply unit 26 is cut off, and the control apparatus H does not receive the normal drive signal from the upper controller , It is determined that the conveying conveyor 2 can not be operated normally, and the evacuation control is executed. When the detection unit 36 detects the downward movement of the fire door 1, when the door detection unit 32 detects the fire door 1 or when the fire is detected by the fire detection unit 34 . That is, the detection unit 36 detects that the first door detection sensor 32A detects the fire door 1 located below the open position, or when the first door detection sensor 32A does not receive the notification signal from the fire detection device 34 In this case, a falling movement is detected. In the present embodiment, the detection unit 36 detects that the door detection unit 32 detects the fire door 1 located below the open position and that the fire detection unit 34 does not receive the notification signal from the fire detection unit 34 When both are satisfied, the falling movement is detected.

After the control device H determines that the conveying conveyor 2 can not be operated normally (specifically, after the control device H receives the door detection signal from the door detection section 32) Or after the control device H has not received the notification signal from the fire detection device 34 or the control device H has received the shutoff signal from the power interruption part 33) Power is supplied to the first upstream conveyor section 11, the first downstream conveyor section 13 and the intermediate conveyor section 15 from the auxiliary feeding section 27 until the set time has elapsed, The supply of electric power for driving from the auxiliary feeding portion 27 to the first upstream conveyor portion 11, the first downstream conveyor portion 13 and the intermediate conveyor portion 15 is cut off.

The door detection unit 32 immediately transmits the door detection signal to the control apparatus H and the power supply interruption unit 33 controls the power supply unit 26 The power supply from the auxiliary power supply 27 to the driving unit 18 is immediately started. Therefore, the timing at which the door detecting unit 32 detects the downward movement and the timing at which the power supply to the drive unit 18 is started from the auxiliary power supply unit 27 is a state in which the conveyance conveyor 2 can not be operated normally, (H).

Specifically, as shown in the flow chart of Fig. 5, when the first control unit H1 and the second control unit H2 have received the door detection signal from the door detection unit 32 , A case in which a notification signal from the fire detection device 34 is not received, a case in which a shutoff signal is received from the power interruption section 33, and a case in which a normal drive signal from the higher controller is not received If not, the transport control is executed. When the first control unit H1 and the second control unit H2 have received the door detection signal from the door detection unit 32, the control device H transmits a notification signal from the fire detection device 34 In the case of receiving no interception signal from the power interruption unit 33, or in the case of not receiving the normal driving signal from the higher controller, the retraction control is executed.

When the first control unit H1 and the second control unit H2 are receiving the door detection signal from the door detection unit 32 when the control apparatus H starts executing the evacuation control, A case in which a notification signal from the controller 34 is not received, a case in which a shutoff signal is received from the power interruption unit 33, and a case in which a normal drive signal from an upper controller is not received .

When the first control unit H1 and the second control unit H2 are receiving the door detection signal from the door detection unit 32 and not receiving the notification signal from the fire detection device 34, Or when a fire signal is detected by the fire detection device 34 and the fire door 1 is moved downward from the open position, , The power supply from the main power feeder 26 is cut off. Therefore, when the control device H is executing the evacuation control, the power from the main power feeder 26 is cut off for the second upstream conveyor portion 12 and the second downstream conveyor portion 14, And the first upstream conveyor section 11, the first downstream conveyor section 13 and the intermediate conveyor section 15 are driven by the power supply from the auxiliary power supply section 27. [

When the first control unit H1 and the second control unit H2 do not receive the normal drive signal from the higher controller and the power supply from the main power feeder 26 is not blocked In the evacuation control, the second upstream conveyor section 12 and the second downstream conveyor section 14 are stopped and the first downstream conveyor section 11, the first downstream conveyor section 13, (15) is driven by the power supply from the main power supply part (26) or the auxiliary power supply part (27).

When the first control unit H1 and the second control unit H2 have received the door detection signal from the door detection unit 32, the control device H transmits a notification signal from the fire detection device 34 In the case where the power supply interruption unit 33 does not receive the cutoff signal from the power supply cutoff unit 33 and the cutoff signal from the power cutoff unit 33 is received, the elapsed time from when these pieces of information are inputted and the power supply is interrupted is measured, After the set time has elapsed, the time limiter 25 cuts off the first upstream conveyor portion 11, the first downstream conveyor portion 13, and the upstream portion 27 to the intermediate conveyor portion 15 And the evacuation control is terminated.

2. Other Embodiments

Next, another embodiment of the article transporting facility will be described.

(1) In the above embodiment, the first downstream conveyor portion 13 is fixed to the floor, but the first downstream conveyor portion 13 may be fixed to the conveyance car. In the case where the first downstream conveyor portion 13 is fixed to the conveyance car as described above, when the conveyance vehicle is stopped at the stop position of the downstream side X2 in the conveying direction with respect to the intermediate conveyor portion 15, The first downstream conveyor section 12 and the first downstream conveyor section 13 in the order of the first upstream conveyor section 12 and the first downstream conveyor section 13, W are loaded, the conveyance vehicle is caused to run from the stop position and the article W is conveyed.

(2) In the above embodiment, the power supply from the auxiliary power supply unit 27 is cut off after a predetermined set time has elapsed since the power supply from the auxiliary power supply unit 27 was started. However, And an inventory sensor 41 for detecting the presence of the article W in the door trajectory 8 as shown in Fig. 4A. After the supply of electric power from the auxiliary supplying portion 27 is started, The power supply from the auxiliary power supply unit 27 may be cut off after the detection of the power supply W is stopped.

(3) In the above embodiment, the auxiliary feeding portion 27 includes the first sub-feeding unit 27A and the second sub-feeding unit 27B, but the sub-feeding unit 27 may be a single sub- And the driving power may be supplied to each of the first upstream conveyor unit 11, the first downstream conveyor unit 13, and the intermediate conveyor unit 15 by the secondary power supply unit.

(4) In the above embodiment, the control device H includes the first control unit H1 and the second control unit H2, but the control device H includes a single control unit, Unit may control the first upstream conveyor unit 11, the first downstream conveyor unit 13, and the intermediate conveyor unit 15, respectively.

(5) In the above-described embodiment, the intermediate conveyor unit 15 is retracted to the upstream side X1 in the conveying direction, and is supplied with power from the first sub-power feeding unit 27A and controlled by the first control unit H1 However, the intermediate conveyor unit 15 may be retracted to the downstream side X2 in the conveying direction, and the second control unit H2 may receive power supplied from the second sub-power feeding unit 27B.

(6) In the above embodiment, the conveying roller 17 provided on the intermediate conveyor portion 15 is rotated by driving the driving portion 18, but the conveying roller 17 provided on the intermediate conveyor portion 15 is rotated It may be a roller.

(7) In the above-described embodiment, the detection unit 36 detects the door detection unit 32 when the door detection unit 32 detects the fire door 1 located below the open position, and when the notification signal transmitted from the fire detection device 34 The detection unit 36 detects the downward movement of the fire door 1 when the door detection unit 32 detects the fire door 1 located below the open position, , And the case in which the notification signal from the fire detection device (34) is not received, the downward movement of the fire door (1) may be detected.

(8) The configurations disclosed in the above-described embodiments can be combined with the configurations disclosed in other embodiments as long as no inconsistency arises. In other respects, the embodiments disclosed in this specification are merely examples in all respects. Therefore, various modifications can be appropriately made without departing from the spirit of the present disclosure.

3. Outline of the above embodiment

Hereinafter, the outline of the above-described article transporting facility will be described.

The article conveying device includes a fire door which is opened and closed by moving in the vertical direction, a conveyor conveyor provided below the fire door at the open position to convey the article, and a power feeder for supplying power for driving to the conveyor conveyor Including,

Wherein the fire extinguishing door is movable downward from the open position to a closed position and the conveying conveyor includes a first upstream conveyor portion provided on an upstream side in a conveying direction with respect to a door locus which is a movement locus of the fire door, A downstream conveyor section provided downstream of the door locus in a conveying direction and a downstream conveyor section provided downstream of the first upstream conveyor section in the conveying direction of the conveyor conveyor, And a middle conveyor portion provided between the downstream conveyor portions. The intermediate conveyor portion is moved to a conveying position that crosses the door trajectory and supports the article conveyed by the conveyor conveyor, and a retreat position that does not intersect with the door trajectory Wherein the power feeding section is configured such that the first upstream conveyance A main feeder for feeding driving power to the feeder, the second upstream conveyor, the downstream conveyor, and the intermediate conveyor; and a second upstream conveyor And a secondary feeder capable of supplying driving power to the first upstream conveyor, the downstream conveyor, and the intermediate conveyor except for the secondary feeder, wherein the secondary feeder is charged by power supply from the main feeder The intermediate conveyor portion is in the conveying position in a state in which power is being supplied from the feeding portion and moves from the conveying position to the retracting position as the power supply from the feeding portion is cut off.

According to the above configuration, the second upstream conveyor section is supplied with electric power from only the main power feed section, but with respect to the first upstream conveyor section and the downstream conveyor section, power is supplied from both the main feed section and the feed section. Therefore, when the electric power supply from the main feeder is cut off, the second upstream conveyor portion can not be transported because it stops, but the first upstream conveyor portion and the downstream conveyor portion are accumulated in the power storage device of the auxiliary feeder The electric power is supplied to drive the first upstream conveyor portion and the downstream conveyor portion by this electric power to convey the article. Further, the intermediate conveyor portion is in the conveying position because electric power accumulated in the power storage device of the auxiliary feeding portion is supplied. Therefore, when the electric power supply from the main power feeder is interrupted, the second upstream conveyor portion is stopped, thereby preventing the article from being conveyed from the second upstream conveyor portion to the first upstream conveyor portion, The conveyor section and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, even when the article exists in the door trajectory when the power supply from the main feeder is interrupted, the article can be conveyed from the door trajectory to the downstream side in the conveying direction to withdraw the article from the door trajectory, It is possible to prevent the fire door moving to the closed position from interfering with the article.

The first upstream conveyor portion, the second upstream conveyor portion, and the downstream conveyor portion stop, and the intermediate conveyor portion is retracted from the conveying position by cutting off the power from the feeder portion and cutting off power from the feeder portion to the conveyor conveyor The intermediate conveyor portion can be retracted from the door locus and the fire door moving from the open position to the closed position can be prevented from interfering with the intermediate conveyor.

In this way, when the fire door is moved from the open position to the closed position downward along the door trajectory, interference of the article or the intermediate conveyor with the fire door can be avoided, have.

Here, it is preferable to further include a time cutoff unit that cuts off the power supply from the auxiliary power supply unit after a predetermined set time has elapsed since the start of power supply from the auxiliary power supply unit.

According to the above configuration, the power supply from the auxiliary power supply can be cut off after a predetermined set time has elapsed since the start of power supply from the auxiliary power supply. Therefore, it is possible to move the intermediate conveyor from the conveying position to the retracted position at an appropriate timing, and to prevent the fire door from interfering with the intermediate conveyor portion by delaying the movement of the intermediate conveyor portion to the retreat position.

The control device includes a control device for controlling the conveying conveyor, and a detecting section for detecting a downward movement of the fire door downward from the open position, wherein the control device is configured to, when the detecting section detects the downward movement And the evacuation control is performed so that the evacuation control is performed until the predetermined time elapsed after the detection unit detects the descending movement has elapsed from the upstream side to the downstream side of the first upstream conveyor unit, It is preferable that the drive power is supplied to the intermediate conveyor section and the supply of the drive power to the first upstream conveyor section, the downstream conveyor section and the intermediate conveyor section is cut off after the set time has elapsed .

According to the above arrangement, the article can be transported by driving the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section until a predetermined set time elapses after the detection section detects the downward movement. Then, after the set time has elapsed, the first upstream conveyor portion and the downstream conveyor portion can be stopped and the intermediate conveyor portion can be moved to the retreat position. This makes it possible to properly transport the article and move the intermediate conveyor portion to the retracted position until the fire door is lowered to a height at which the fire door is moved downward to interfere with the conveying conveyor.

It is preferable that the control device performs the evacuation control even when the detection unit detects the downward movement and the power supply from the main power supply unit is cut off.

According to the above arrangement, it is possible to avoid that the article is located at the position overlapping the door trajectory even when the power supply from the main power feeder is cut off. Therefore, even when the fire door is lowered in a state where the power supply from the main power feeder is shut off, it is possible to prevent the article or the intermediate conveyor section from interfering with the fire door.

Further, it is preferable that the sub-power-feeding section includes a first sub-power-feeding unit and a second sub-power-feeding unit, and the control apparatus includes a first control unit and a second control unit, Wherein the second upstream-side conveyor unit is provided on the upstream side of the door locus in the conveying direction, the second sub-power-feeding unit and the second control unit are provided on the downstream side in the conveying direction with respect to the door locus, And the downstream conveyor portion is controlled by the second control unit under the power supply from the second sub-power-feeding unit, and the downstream conveyor portion is controlled by the first control unit, The conveyor portion has the intermediate conveyor portion in the retracted position out of the upstream side in the conveying direction and the downstream side in the conveying direction with respect to the door locus Is preferably controlled by a control unit provided on the retracted side in response to power supply from a secondary power supply unit provided on the retracted side.

According to the above configuration, the first sub-feeder unit feeding the first upstream conveyor unit and the first control unit controlling the first upstream conveyor unit are arranged on the upstream side in the conveying direction in which the first upstream conveyor unit exists with respect to the door locus . The second sub-feeder unit feeding the downstream conveyor unit and the second control unit controlling the downstream conveyor unit are disposed on the downstream side in the conveying direction in which the downstream conveyor unit exists with respect to the door locus. The control unit for controlling the secondary power feed unit or the intermediate conveyor unit that feeds the intermediate conveyor unit is disposed on the side where the intermediate conveyor is present.

Therefore, it is not necessary to provide the wiring connecting the conveying conveyor and the sub-power supply unit or the control device in the upstream direction of the door direction and the downstream side in the conveying direction, which are often separated by walls or the like. Therefore, these wirings can be easily installed.

When the door detection unit detects that the fire door is located below the open position and neither the door detection unit nor the fire detection apparatus has received the notification signal, the detection unit detects the downward movement It is preferable to detect it.

According to the above configuration, in addition to the case where the fire door is actually detected, when the notification signal that is normally transmitted from the fire detection apparatus is not received, the notification unit detects the downward movement of the fire door. In other words, for example, in the case where a fire is detected, it is considered that the transmission of the notification signal is stopped and the fire door moves from the open position to the closed position in conjunction with this, By performing the evacuation control in accordance with the fact that the fire door is not received (detecting the descending movement of the fire door), the evacuation control can be executed before the actual fire door descends, so that the article can be retreated quickly, The portion can be moved to the retreat position.

The article conveying device includes a fire door which is opened and closed by moving in the vertical direction, a conveyor conveyor provided below the fire door at the open position to convey the article, and a power feeder for supplying power for driving to the conveyor conveyor Including,

And a control device for controlling the conveying conveyor, wherein the fire door is movable downward from the open position to a closed position, and the conveying conveyor is arranged on the upstream side in the conveying direction with respect to the door locus, which is a movement locus of the fire door A second upstream conveyor section provided upstream of the first upstream conveyor section in the conveying direction, a downstream conveyor section provided downstream of the door locus in the conveying direction, and a second upstream conveyor section disposed downstream of the conveyor section in the conveying direction, And an intermediate conveyor section provided between the first upstream conveyor section and the downstream conveyor section in the conveying direction, wherein the intermediate conveyor section includes: a conveying position for crossing the door trajectory and for supporting the article conveyed by the conveyor conveyor; , Moves to a retreat position that does not intersect with the door trajectory And is configured to move from the transporting position to the retreat position in response to the interruption of power supply from the feeder portion in the transporting position in a state where power is being supplied from the feeder portion, The control device executes evacuation control when it is determined that the conveying conveyor can not be operated normally, and the evacuation control is performed when it is determined that the conveying conveyor can not be operated normally, The power supply unit supplies driving power to the first upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit at the feeding unit, and after the set time has elapsed, the first upstream conveyor unit, the downstream conveyor unit, And a control for interrupting supply of driving power to the intermediate conveyor.

According to the above arrangement, by performing the evacuation control, the articles of the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, when the control device determines that the normal operation of the conveying conveyor can not be performed, even when the article exists in the door locus, the evacuation control is carried out to transport the article from the door trajectory to the downstream side in the conveying direction, And can be withdrawn from the trajectory. After the set time has elapsed, the first upstream conveyor portion, the second upstream conveyor portion, and the downstream conveyor portion stop as the electric power from the feeder portion to the conveying conveyor is cut off, and the intermediate conveyor portion is moved from the conveying position to the retreat position The intermediate conveyor portion can be retracted from the door locus, and the fire door moving from the open position to the closed position can be prevented from interfering with the intermediate conveyor.

Therefore, when the conveying conveyor can not be operated normally, the article can be prevented from interfering with the fire door when the fire door is moved from the open position to the closed position downward along the door locus passage, To the closed position.

The control device may be configured such that when the fire door detects a downward movement moving downward from the open position or when the normal driving signal is not received from an upper controller, It is preferable to judge that there is no state.

According to the above arrangement, when the fire door detects the downward movement of the door from the open position downward, the control device determines that the conveying conveyor can not be operated normally and performs the evacuation control. Therefore, when the fire door is moved to the closed position, for example, because a fire has occurred, the article can be retracted from the door locus, so that the fire door moving from the open position to the closed position can be prevented from interfering with the article have.

When an abnormality occurs in the communication line or the controller itself connected to the upper controller and the control device, the normal driving signal is not inputted to the control device. Therefore, the control device judges that the conveyance conveyor can not be operated normally, And performs evacuation control. Therefore, when the fire door is moved to the closed position in the state where the abnormality occurs in the controller or the like, for example, the article can be withdrawn from the door trajectory, so that the fire door moving from the open position to the closed position interferes with the article Can be avoided.

The power feeder may further include a main power feeder for supplying driving power to the first upstream conveyor, the second upstream conveyor, the downstream conveyor, and the intermediate conveyor, And a secondary feeder capable of supplying driving power to the first upstream conveyor portion, the downstream conveyor portion and the intermediate conveyor portion except for the second upstream conveyor portion in a state of being cut off, And a power storage device that is charged by power supply from the power feeder, wherein when the power supply from the main power feeder is cut off, the control device judges that the conveyor is in a state in which the conveyor can not be operated normally, The control is carried out until it is determined that the conveying conveyor is in a state in which it can not be normally operated, The downstream conveyor section and the intermediate conveyor section are supplied with power for driving from the auxiliary feed section to the first upstream conveyor section, the downstream conveyor section and the intermediate conveyor section, and after the set time has elapsed, And the control for interrupting the supply of driving power to the intermediate conveyor section is preferable.

According to the above configuration, the second upstream conveyor section is supplied with electric power from only the main power feed section, but with respect to the first upstream conveyor section and the downstream conveyor section, power is supplied from both the main feed section and the feed section. Therefore, when the electric power supply from the main feeder is cut off, the second upstream conveyor portion can not be transported because it stops, but the first upstream conveyor portion and the downstream conveyor portion are accumulated in the power storage device of the auxiliary feeder The electric power is supplied to drive the first upstream conveyor portion and the downstream conveyor portion by this electric power to convey the article.

Therefore, when the electric power supply from the main power feeder is interrupted, the second upstream conveyor portion is stopped, thereby preventing the article from being conveyed from the second upstream conveyor portion to the first upstream conveyor portion, The conveyor section and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, even when the article exists in the door trajectory when the power supply from the main feeder is interrupted, the article can be conveyed from the door trajectory to the downstream side in the conveying direction to withdraw the article from the door trajectory, It is possible to prevent the fire door moving to the closed position from interfering with the article. After the set time has elapsed, the first upstream conveyor portion, the second upstream conveyor portion, and the downstream conveyor portion stop as the electric power from the feeder portion is cut off to cut off power from the feeder portion to the conveyor conveyor, The intermediate conveyor portion is moved from the conveying position to the retreat position, the intermediate conveyor portion can be retracted from the door locus, and the fire door moving from the open position to the closed position can be prevented from interfering with the intermediate conveyor. Thus, when the fire door is moved from the open position to the closed position downward, the fire door can be prevented from interfering with the article, so that the fire door can be properly lowered to the closed position.

The technology related to this disclosure can be used for an article transporting facility including a fire door, a conveying conveyor, and a power feeder.

1: fire door
2: Conveying conveyor
3: feeding part
8: door trajectory
11: a first upstream conveyor section
12: second upstream conveyor section
13: first downstream conveyor section (downstream conveyor section)
15: intermediate conveyor part
25: time limit block
26: main feed part
27: All auxiliary parts
27A: PART 1 POWER SUPPLY UNIT
27B: Part 2 power supply unit
28: Power storage device
H: Control device
H1: first control unit (detection unit)
H2: second control unit (detection unit)
W: Goods

Claims (9)

A fire door which is opened and closed by moving in a vertical direction;
A conveying conveyor installed below the fire door in the open position to convey the article; And
(Feeding portion) for supplying driving power to the conveying conveyor,
The product transport apparatus comprising:
Wherein the fire door is movable downward from the open position to a closed position,
Wherein the conveying conveyor comprises: a first upstream conveyor portion provided on an upstream side in a conveying direction with respect to a door locus which is a movement locus of the fire door; A second upstream conveyor section provided upstream of the first upstream conveyor section in the conveying direction; A downstream conveyor provided downstream of the door locus in the conveying direction; And an intermediate conveyor portion provided between the first upstream conveyor portion and the downstream conveyor portion in the conveying direction of the conveyor conveyor,
Wherein the intermediate conveyor portion is configured to be movable to a conveying position that crosses the door trajectory and that supports the article conveyed by the conveying conveyor and a retreat position that does not intersect with the door trajectory,
Wherein the power feeding section includes a main power feeding section for supplying driving power to the first upstream conveyor section, the second upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section; And a secondary power feeder capable of supplying driving power to the first upstream conveyor, the downstream conveyor, and the intermediate conveyor except the second upstream conveyor,
Wherein the auxiliary power feeding section includes a power storage device that is charged by power supply from the main power feeding section,
Wherein the intermediate conveyor portion is in the conveying position in a state in which power is being supplied from the feeding portion and moves from the conveying position to the retracting position as electric power supply from the feeding portion is cut off,
Goods returning equipment. The method according to claim 1,
Further comprising a time cutoff unit for cutting off the power supply from the auxiliary power supply unit after a predetermined set time has elapsed since the start of power supply from the auxiliary power supply unit. 3. The method according to claim 1 or 2,
A control device for controlling the conveying conveyor; and a detecting unit for detecting a downward movement of the fire door downward from the open position,
The control device executes evacuation control when the detection unit detects the downward movement,
Wherein said evacuation control is performed such that said evacuation control unit is operable to drive said first upstream conveyor unit, said downstream conveyor unit, and said intermediate conveyor unit from said feeder until said predetermined time elapses after said detecting unit detects said descending movement, Wherein the supply of electric power for the first upstream conveyor, the downstream conveyor, and the intermediate conveyor is cut off after the set time has elapsed. The method of claim 3,
Wherein the control device executes the evacuation control even when the detection unit detects the downward movement and the power supply from the main power supply unit is cut off. The method of claim 3,
Wherein the auxiliary power-feeding portion includes a first sub-power-feeding unit and a second sub-power-feeding unit,
Wherein the control device comprises a first control unit and a second control unit,
Wherein the first auxiliary power feeding unit and the first control unit are provided on the upstream side in the carrying direction with respect to the door locus and the second auxiliary power feeding unit and the second control unit are provided on the downstream side Respectively,
Wherein the first upstream conveyor portion is controlled by the first control unit in response to power supply from the first sub-
Wherein the downstream conveyor portion is controlled by the second control unit under the power supply from the second auxiliary power-feeding unit,
Wherein the intermediate conveyor portion is provided with a power supply from a secondary power supply unit provided on a retracted side which is a side where the intermediate conveyor portion is present in a state of being in the retreat position out of the upstream side in the carrying direction and the downstream side in the carrying direction with respect to the door locus And is controlled by a control unit provided on the retracted side. The method of claim 3,
A door detector for detecting the fire door positioned below the open position; And
Further comprising a fire detection device that transmits a notification signal to the detection unit when a fire is not detected and stops the transmission of the notification signal when a fire is detected,
When the door detection unit detects that the fire door is positioned lower than the open position by the door detection unit and neither the door detection unit nor the fire detection apparatus has received the notification signal, The product transporting device detecting the product transporting device. A fire door which is opened and closed by moving in a vertical direction;
A conveying conveyor provided below the fire door at the open position to convey the article;
A power feeder for supplying driving power to the conveyance conveyor; And
A control device for controlling the conveying conveyor
The product transport apparatus comprising:
Wherein the fire door is movable downward from the open position to a closed position,
Wherein the conveying conveyor comprises: a first upstream conveyor portion provided on an upstream side in a conveying direction with respect to a door locus which is a movement locus of the fire door; A second upstream conveyor section provided upstream of the first upstream conveyor section in the conveying direction; A downstream conveyor provided downstream of the door locus in the conveying direction; And an intermediate conveyor portion provided between the first upstream conveyor portion and the downstream conveyor portion in the conveying direction of the conveyor conveyor,
Wherein the intermediate conveyor portion is configured to be movable to a conveyance position that crosses the door trajectory and that supports an article conveyed by the conveyance conveyor and a retreat position that does not intersect with the door trajectory, And is configured to move from the carrying position to the retracted position in response to the interruption of the power supply from the power feeder,
The control device executes evacuation control when it is determined that the conveying conveyor can not be operated normally,
Wherein said evacuation control is performed such that said evacuation control unit is operable to evacuate the first upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit from the feeder unit until a preset set time elapses after determining that the conveyor conveyor is in a normal operation- Which is a control for interrupting supply of driving power to the first upstream conveyor section, the downstream conveyor section and the intermediate conveyor section after supplying the driving power to the intermediate conveyor section,
Goods returning equipment. 8. The method of claim 7,
The control device may be configured such that when the fire door detects a downward movement that moves downward from the open position or when the normal conveyance signal is not received from an upper controller, The article returning equipment judged to be. 9. The method according to claim 7 or 8,
Wherein the power feeding section includes a main power feeding section for supplying driving power to the first upstream conveyor section, the second upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section; And a secondary feeder capable of supplying driving power to the first upstream conveyor, the downstream conveyor, and the intermediate conveyor except for the second upstream conveyor,
Wherein the auxiliary power feeding section includes a power storage device that is charged by power supply from the main power feeding section,
The control device determines that the conveying conveyor can not be operated normally when the power supply from the main power feeder is cut off,
Wherein the evacuation control is performed such that the evacuation control is performed such that the evacuation control is performed so that the first upstream conveyor portion, the downstream conveyor portion, and the intermediate conveyor portion are separated from the secondary feeder portion until the set time elapses after the conveyor conveyor Wherein the supply of electric power for driving is stopped and the supply of driving electric power to the first upstream conveyor unit, the downstream conveyor unit and the intermediate conveyor unit is cut off after the set time has elapsed.

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