JPS615855A - Control cable winding-up and unwinding apparatus of self-propelling water discharge gun - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The industrial application field of the invention is a self-propelled water cannon that is capable of extinguishing fires in dangerous areas that are inaccessible to firefighters. Control cables such as optical fibers used to remotely control the up-and-down rotation of water cannons, video transmission of television cameras, etc. from a pump truck.Regarding a device that automatically winds up and unwinds the water cannon as it moves by itself. It is.

Conventional technology and its problems At the scene of a fire, there is a risk of high heat, dryness, or harmful gas generation that firefighters cannot get close to, and firefighting operations are dangerous.
Alternatively, you can simply mount the pump in a narrow space where a pump truck cannot enter, drive it to the scene of the fire, remotely control it from a small self-propelled single-sound pump truck equipped with a water cannon, drive it to the desired extinguishing position, and spray water to extinguish the fire. I'm trying to do that.

However, this self-propelled water cannon is not necessarily visually visible even if it is a pump single P that is remotely controlled, and the rotation of the television camera TV is carried out using the television camera TV mounted on the self-propelled water cannon C.
General control cables or fiber optic cables are often used for transmitting information and commands for undulations, steering movement of self-propelled water cannons, etc., but the running direction of self-propelled water cannons is not constant and varies depending on the site. Since the cables may meander, there is a risk that the cable winding drum mounted on the self-propelled water cannon may become uncoiled, and that the cable may become strained and may even break.

Structure of the Invention In view of this, the present invention has been developed to provide a self-propelled water cannon that moves forward while dispensing a hose by remote control, in which a control cable, which is dispensed separately from the hose, can be routed from a pump vehicle without unwinding the control cable. This device automatically winds up and unwinds the cable according to a command, and includes a winding drum that winds the cable for transmitting the operation command signal from the pump truck, a drive source for the winding drum, and the winding drum. An electromagnetic coupling control means is provided between the drum and the drive source, and the control cable inlet is connected from the drive source via a transmission mechanism to a reciprocating distance of 1 m in relation to the position of the cable winding drum. Configure the means.

In the example diagram, P is a pump truck that can carry a self-propelled water cannon C, and this pump truck P is equipped with equipment necessary to remotely control the self-propelled water cannon, such as a wireless device as shown in the table in Figure 2. A device (transmitter), a VTR device, an operation panel, and an optical transmitter/receiver are installed, and the self-propelled water cannon C has a wireless device (receiver), undulation, rotation, water discharge pattern m11, and water cannon C as shown on the right side of Figure 2. jIIN Adjustable water cannon, water cannon control device, television camera TV, camera control device, traveling device and its control device, power supply, optical transmitting/receiving device, sensor cable winding drum D, etc. are each installed on lit system. The pump truck 2 and the self-propelled water cannon C are connected to each other by a freely extending hose (■) to supply water, and the pump truck 2 and the self-propelled water cannon C cooperate with the KL and wireless device to transmit and receive control signals via the optical fiber cable K. This allows the water cannon to be freely controlled remotely as desired. This self-propelled water cannon 0
A cable winding drum device as shown in the fourth factor below is installed at the rear of the vehicle body or at an arbitrary position, and this is powered appropriately by a DC motor 2 fixed to the frame 1 via an electromagnetic coupling means 6, such as an electromagnetic powder clutch. The winding drum 4 is rotated by a transmission means, and a traverser 5 is provided on the frame 1, and the winding drum 4 is rotated by a power transmission means as appropriate. The traverser 5 is provided with a shaft 6 having a left-hand thread and a right-hand thread that is rotated by the power transmission means, and a boss 7t having a female thread that is screwed into the shaft, and the boss 7 is rotatable. A pair of rollers 8.8 are erected facing each other, and the cable K is inserted between the rows 28.8, and the cable guide 9 is moved behind the center line of both rollers at the same time as the boss. establish.

The clutch force can be adjusted using the powder clutch three-wire clutch current. Further, a filtration winding detection device 1i10 operated from the winding drum 4 via a power transmission means is provided,
The device 10 may have a structure in which the number of rotations of the winding drum is determined in advance using an auto counter or the like, and is activated when the set value is reached, and the end of the cable is detected by this.

The operation of winding, unwinding and loading the couple configured as described above will now be described.

In the case of normal winding, the excitation current of the electromagnetic powder clutch 3 is a normal value, and the power of the DC motor 2 rotates the winding drum 4 via the roller clutch.

Now, if the excitation current is reduced for some reason, the powder clutch 3 is released and no power is transmitted, so that no abnormal tension is applied to the cable KK.

The excitation current of the powder clutch 6 can be adjusted by the variable resistors VRz and V'R.

The boss 7 is moved by the rotation of the shaft 6 in conjunction with the rotation of the winding drum, and the cable inserted through the roller 8 is wound along the winding surface of the winding drum 4 without causing any irregular winding. taken.

When the boss 7 moves forward and reaches one end of the shaft 6, it shifts from right-handed to left-handed, for example, and as the shaft rotates, the boss retreats, thus overlapping the outer periphery that Cable Co. has already wound up and can be seen in sequence. It is. In this way, as the self-propelled water cannon advances and retreats, the cable winds up and down on the winding drum, ensuring a stable connection between the pump truck and the self-propelled water cannon at all times. .

When the self-propelled water cannon "fails to fire", the self-propelled water cannon follows this backward movement, winds up the cable, and drives the drum to unwind it, so the pump truck and the self-propelled water cannon are always stopped. There is an advantage to connecting with a cable.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the usage state, Figure 2 is a control system diagram, and Figure 3 is an explanatory diagram of the usage state.
The figure is a front view of the self-propelled water cannon, Figure 4 is a front view of the cable winding drum device, Figure 5 is a plan view of the same, Figure 6 is an explanatory diagram of the traverser section, and Figure 7 is the It is a diagram. P...Pump truck C...Self-propelled water discharge viscosity H...Hose X...Cable

Claims (1)

[Claims] In a self-propelled water cannon that is equipped with a water cannon and travels under remote control while feeding out a hose that receives water from a pump vehicle, the winding drum winds up the cable for transmitting the operation command signal from the pump vehicle, and the winding drum winds up the cable. A drum drive source and an electromagnetic coupling control means provided between the winding drum and the drive source are provided, and the control cable inlet is connected to the cable winding drum position from the drive source via a transmission mechanism. 1. A control cable winding and rewinding device for a self-propelled water cannon, characterized in that it is further equipped with a feeding means for reciprocating the control cable.