JPH01171576A - Fire prevention damper for linear carrying device - Google Patents

Abstract

PURPOSE:To secure the sure closing operation of a fire prevention damper by driving and closing a damper part at the time of receiving both of the fire alarm signal from a fire alarm equipment and the stop signal of a running body from a linear carrying device by a fire prevention damper control part. CONSTITUTION:Wall through parts 3 of plural fire prevention sections are opened or closed by damper parts 11. When receiving both of the fire alarm signal from a fire alarm equipment 22 and the stop signal of the running body from a control part 24 of a linear carrying device, a damper control part 10a drives and closes damper parts 11. As the result the function of the fire prevention damper is displayed without hindrance to contribute to the improved of safety.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a fire prevention damper for a linear conveyance device that uses a linear motor as a drive source and causes a traveling body to inertially travel.

(Prior Art) When a linear conveyance device is installed across a plurality of fire protection compartments, it is mandatory under the Fire Service Act to provide a fire damper in the wall penetrating portion of the fire protection compartment wall.

Such a fire prevention damper, for example, normally leaves the penetration part of the fire prevention partition wall open to ensure free running of the traveling body driven by the near motor, and also closes the fire prevention damper when receiving a fire alarm signal to close the penetration part. A normally open system that shuts off is often used.

A conventional example of this type of fire damper will be explained with reference to FIG.

The fire damper 50 shown in the figure includes a fire alarm interface 51 that sends and receives signals to and from the fire alarm equipment 30, a fire damper control section 52 connected to the fire alarm interface 51, and a fire damper control section 52 connected to the fire alarm interface 51. The damper section 53 opens or closes the penetration section of the fire protection partition wall in the running path of the linear conveyance device under the control of the section 52.

Then, a fire alarm signal from the fire alarm equipment 30 is taken in by the fire alarm interface 51, and the fire alarm signal is sent from the fire alarm interface 51 to the fire damper control section 52. As a result, an open command or a close command signal is sent from the fire prevention damper control section 52 to the damper section 53, and the damper section 53
opens or closes.

The operation of this damper section 53 is detected by a detector (not shown), and the detection result is sent to the fire prevention damper control section 52 as a fire prevention damper open or closed signal. 51 to the fire alarm equipment 30 and displayed by a lamp or the like.

However, in such a conventional fire prevention damper 50, since the closing operation of the damper portion 53 is performed completely independently of the running state of the traveling body driven by the near motor, the damper is closed upon reception of the fire detection signal. Part 5
3, an abnormal situation occurs in which the running object collides with the damper section 53 or the running object gets caught in the damper section 53, and as a result, there is a problem that a reliable closing operation of the damper section 53 cannot be ensured in the event of a fire outbreak. Ta.

(Problems to be Solved by the Invention) As mentioned above, in the past, the running state of the traveling body of the linear conveyance device and the operation of the fire damper are not linked, so it is impossible to ensure the reliable closing operation of the fire damper. There's a problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fire prevention damper for a linear conveyance device that can ensure reliable closing operation of the fire prevention damper by linking travel control of the traveling body with operation control of the fire prevention damper. It's something.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a fire damper for use in a linear conveyance device installed across a plurality of fire protection compartments, in which a wall penetrating portion of the fire protection compartment is opened and closed. and a fire prevention damper control section that closes the damper section when receiving both a fire alarm signal from the fire alarm equipment and a stop signal of the traveling body from the linear conveyance device.

(for production) The operation of the fire damper having the above structure will be explained below.

When the fire prevention damper control section of this fire prevention damper receives both a fire alarm signal sent from the fire alarm equipment due to the occurrence of a fire, etc., and a stop signal indicating the stopped state of the traveling body from the linear conveyance device, In the normal state, the damper part, which opens the wall penetration part of the fire protection compartment, is driven to close, thereby closing the wall penetration part. This prevents an abnormal situation such as the damper portion pinching the traveling object.

(Example).

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

A fire prevention damper 1 for a linear conveyance device shown in the figure is installed in a wall penetrating portion 3 provided in a wall 2 that partitions fire prevention sections (1) and (2). Further, in the region of the wall penetrating portion 3, there are provided conveyance paths 4a and 4b which are horizontally arranged and have a constant interval d, and constitute a linear conveyance device. These conveyance paths 4a, 4
b is constructed by arranging traveling guide pieces 8, 9 each having a cross-sectional shape of an opening, as shown in FIG. .

The fire damper 1 includes a fire damper drive section 10 disposed above the wall penetrating section 3, and a damper section (shutter) 11 that is driven by the fire damper drive section 10 to open and close the wall penetrating section 3. ing.

The fire damper drive unit 10 includes a first vertical plate 12a directly connected to the wall 2, and a first vertical plate 12a that is directly connected to the wall 2.
A second vertical plate 12b is arranged parallel to the wall penetrating portion 3 and fixedly spaced apart from the wall penetrating portion 3. The first vertical plate attached to the second vertical plate 12a, 12b. The second horizontal plates 13a, 13b, the drive motor 14 fixedly arranged on the second horizontal plate 13b, the worm 15 fixed to the rotating shaft of the drive motor 14, and the first... Between the second vertical plates 12a and 12b, a pair of belt pulleys 16a and 16b are supported in a vertical arrangement by the second vertical plate 12b, and a belt 17 stretched between both belt pulleys 16 and 16b; Support shaft 1 of the belt pulley 16b
8 is fixed to a portion protruding through the second vertical plate 12b, and meshes with the worm 15.
9.

The damper section 11 includes a first. Second vertical plate 12a.

As shown in FIG. 2, the area extending from the side of the tension area of the belt 17 between the belts 12b through the wall penetrating portion 3 to the space having the interval d provided between the conveyance paths 4a and 4b is designated as 21 as shown in FIG.
．． It is arranged to be movable in the Z direction. The upper end of this damper portion 11 is connected to the belt 17, and the worm 15° worm gear 19 and the belt wheel 16b
It moves in the Zl and Z2 directions in conjunction with a belt 17 that rotates around due to the rotational force of the drive motor 14 transmitted through the drive motor 14, thereby opening and closing the wall penetrating portion 3. Furthermore, the second
The figure shows the damper section 11 in a closed state.

Further, in FIG. 2, a portion 20 indicated by a two-dot chain line is a transfer area in which a traveling body of a linear transfer device (not shown) runs, and a reference numeral 21 is a damper guide member disposed between the platforms 6 and 7.

Next, the fire damper 1. Linear conveyance device and the wall 2
A control system including a fire alarm equipment 22 that sends out a fire alarm signal in response to the occurrence of a fire or the like in the fire protection compartments (1) and (2) divided by 1 and 2 will be explained with reference to FIG.

This control system controls a fire alarm interface 23 that receives the fire alarm signal from the fire alarm equipment 22 and transfers it, and a linear conveyance device that drives or stops the traveling body and sends out a stop signal when the traveling body stops. A linear interface 25 that receives the stop signal from the section 24 and transfers it; and a linear interface 25 that controls the fire prevention damper drive section 10 to keep the damper section 11 open at all times and sends both the fire alarm signal and the stop signal. Fire prevention damper control unit 10 that sends a tamper part close signal to fire prevention damper drive unit 10 when taken in
It has a. With such a configuration, the fire prevention damper drive unit 10 always drives the damper unit 11 open to open the wall penetrating portion during normal operation when the traveling body of the linear conveyance device passes through the conveyance area 20. When a fire occurs and the traveling body is stopped, the damper section 11
The wall penetrating portion 3 is closed by this.

Further, the open/close state of the damper section 11 is detected by a detection means such as a limit switch (not shown), and the detection signal is sent to the fire prevention damper control section 10a. An open/close state signal indicating the open or closed state of the damper portion 11 is sent to the fire alarm equipment 22 . In addition, the fire damper control section 1
0a sends the fire alarm signal to the controller 24 of the linear conveyance device via the linear interface 25.

Although not shown in FIGS. 1 and 2, the traveling body of the linear conveyance device moves inertia in the wall penetrating portion 3, and when the operation is finished, etc., the traveling body moves in the portion other than the wall penetrating portion 3. The following explanation will be given assuming that it is stopped.

Next, the operation of the fire damper 1 having the above structure will be explained.

As an initial state, it is assumed that the linear conveyance device is in operation, the damper section 11 is driven open by the fire prevention damper drive section 10, and the wall penetrating section 3 is in the open state.

In this state, when a fire occurs in the fire prevention compartment (■) or (2) and a fire alarm signal is sent out from the fire alarm equipment 22, the fire alarm interface 23 takes in the signal and transfers it to the fire prevention damper control section 10a. Fire damper control section 10a
does not yet send the damper section close signal at this stage, and the damper section 11 still maintains the open state.

When the operator of the linear conveyance device performs an operation to stop the traveling body at a portion other than the wall penetrating portion 3 due to the occurrence of a fire, the control unit 24 of this device sends a stop signal indicating the stopped state of the traveling body to the linear conveyor. It is sent to the fire damper control unit 10a via the interface 25.

Thereby, the fire prevention damper control section 10a recognizes the occurrence of a fire and the stoppage of the traveling object, and sends a damper close signal to the fire prevention damper drive section 10. As a result, the drive motor 14 in the fire prevention damper drive unit 10 is started, and its rotational force is transferred to the worm 15. It is transmitted to the worm gear 19 and the belt wheel 16b,
The belt 17 performs a circular movement to move the damper part 11 in 72 directions, and the wall penetrating part 3 where no running body is present is completely closed by the damper part 11.

The closed state of the damper section 11 at this time is detected by a detection means (not shown), and the detection signal is sent to the fire prevention damper control section 10a. As a result, the closed state signal of the open/closed state signals is sent from the fire prevention damper control unit 10a to the fire alarm equipment 2 via the fire alarm interface 23,
It is used to confirm the closed state of the damper section 11 in the fire alarm equipment 22.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention.

[Effects of the Invention] According to the present invention described in detail above, the original function of the fire prevention damper is improved by ensuring that the damper section is closed after confirming that the traveling body of the linear conveyance device has stopped. It is possible to provide a fireproof damper for a linear conveyance device, which can exhibit its functions without any trouble and can contribute to improved safety.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a sectional view of the main parts of the same as above, Fig. 3 is a block of the control system of the same as above, and Fig. 4 is a block showing the control system of a conventional fire damper. It is a diagram. 1... Fire damper, 2... Wall, 3... Wall penetration part,
10... Fire prevention damper drive section, 10a... Fire prevention damper control section, 11... Damper section,
22...Fire alarm equipment. Agent: Patent Attorney Masayoshi Misawa, /160 2 Figure 1

Claims (1)

[Claims] A fire prevention damper used in a linear conveyance device installed across a plurality of fire prevention compartments, the damper portion opening and closing a wall penetration part of the fire prevention compartment, and a fire alarm signal from a fire alarm equipment and a fire alarm signal from the linear conveyance device. a fire prevention damper control section for driving the damper section closed when receiving both stop signals of the traveling body.