JPH0620188U - Pirate boarding detection device - Google Patents

Abstract

(57) [Summary] [Purpose] To detect the entry of pirates into ships. [Structure] A plurality of struts 9 projecting toward the sea side at predetermined intervals on the side of the hull of the hull, and a line slidably supported by the tip ends of the plurality of struts 9 and projecting toward the sea side. Body 3
And a detection means 10 which is connected to the strip 3 and detects a change in tension of the strip 3 and outputs a detection signal, and an alarm means which issues an alarm when the detection means 10 detects a change in tension of the strip 3. 11 and 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pirate boarding detection device for ships, and more particularly to a pirate boarding detection device suitable for use in large ships such as ocean freighters, tankers and passenger ships.

[0002]

[Prior art]

 Conventionally, to detect the entry of pirates, a crew member stands in a bridge or a wheelhouse (hereinafter referred to as a bridge) for monitoring, and mainly the sight of the crew member detects the approach or entry of a pirate.

[0003]

[Problems to be solved by the device]

 By the way, the above-mentioned monitoring from the bridge is generally limited to the range visible from the bridge. In addition, monitoring from the bridge is difficult at night, especially when the weather conditions such as fog are bad. For this reason, as shown in FIGS. 1 and 2, the bandits 1 get on the small boat 2 and approach the boat 3 and reach the handrails 4 on the side of the hull from the blind spot of the bridge or when the weather conditions are bad at night. It is overlooked that a hook 6 provided at the tip of the bamboo pole 5 or the tip of the rope is caught and climbed, and there is a risk that the pirate 1 may get caught suddenly and get in.

The present invention has been made in view of the above circumstances, and an object of the present invention is to easily detect the entry of pirates without depending on the monitoring from the bridge.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a plurality of stanchions installed so as to project toward the sea side at predetermined intervals on the side of the hull of the hull, and slidably supported by the tips of the plurality of stanchions to the sea side When a tension change is detected by the detection means that detects a change in the tension of the line, and a detection means that is connected to the line and that detects a change in the tension of the line and outputs a detection signal And an alarm means for issuing.

[0006]

[Action]

 When a pirate climbs on the hull berth, for example, a bamboo rod used by the pirate touches a hook or a hook at the tip of the rope is caught by a strut that is supported by multiple struts on the hull berth and is erected to extend to the sea side. When the tension of the strip changes due to, for example, the detecting means detects the change in the tension of the strip and outputs a detection signal, and the alarm means operates based on the detection signal to issue an alarm.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 3 shows a pirate boarding detection device according to the present invention. The pirate boarding detection device 7 includes a wire 8 and a set of several columns 9 for supporting the wire 8 and is used by a pirate to board. One set is arranged on the side of the ship 3, which is considered to come, for example, on the left and right sides of the stern 3a. The stanchions 9 are installed at an interval of about 10 meters so that the tips of the stanchions project toward the sea, and are detachable so that they can be removed when not in use. Through-holes are formed at the tips of the columns 9, respectively, and the wires 8 are sequentially passed through the through-holes so as to extend over the columns 9 in a protruding manner toward the sea. The diameter of each through hole is larger than the outer diameter of the wire 8, and the wire 8 is slidable in each through hole without being fixed to the tip of each support column 9. Also, one end 8a of the wire 8 is fixed to a support 9a located at one end, while the other end 8b of the wire 8 is passed through a through hole of the support 9b located at the other end. After that, it is connected to a limit switch 10 fixed to the hull. The wire 8 is installed in a state in which the support 9a located at one end and the limit switch 10 are attached to each other, and any part of the wire 8 is pushed or pulled to cause the wire 8 to move. When the tension changes, the limit switch 10 detects the change in tension and outputs a detection signal. An alarm device such as a siren 11 is connected to the limit switch 10, and the siren 11 is activated based on a detection signal of the limit switch 10 to issue an alarm.

The pirate boarding detection device 7 of the present invention is configured as described above and operates as follows. When the pirate approaches the stern 3a of the ship 3 and hooks the bamboo rod 5 or the hook 6 at the tip of the rope on the handrail 4 of the port rim, the bamboo rod 5 comes into contact with the wire 8 as shown in FIG. When the wire 5 or the hook 6 at the tip of the rope is caught by the wire 8 protruding toward the sea side, the tensioned wire 8 is pushed or pulled and the tension of the wire 8 changes. The limit switch 10 connected to the other end 8b of the wire 8 detects a change in the tension of the wire 8 and outputs a detection signal. Based on this detection signal, the siren 11 operates and issues an alarm, and the alarm of the siren 11 detects the entry of a pirate and takes measures against the invasion of the pirate.

In addition, in the above-described embodiment, an example has been described in which the wire is laid through the through holes at the tips of the columns, but the present invention is not limited to this, and a rope may be laid in place of the wire. Instead of the through hole, a hook that slidably penetrates the wire or rope may be formed. The alarm device may be an illuminator such as a searchlight or a flash instead of the siren. In this case, it becomes possible to reveal the appearance of the pirates coming in.

[0010]

[Effect of device]

 As described above, according to the present invention, a plurality of stanchions installed so as to project toward the sea side at predetermined intervals on the hull shore and a plurality of struts that are slidably supported by the tips of the plurality of stanchions and stretched toward the sea side. A strip that is erected in a protruding shape, a detection unit that is connected to the strip and that detects a change in tension of the strip and outputs a detection signal, and an alarm when the detection unit detects a change in tension of the strip. Since it is equipped with a warning means for issuing a warning, it is possible to easily detect the entry of pirates that are difficult to detect even if the night weather conditions are bad or the bridge becomes a blind spot and is monitored by the bridge. Therefore, it is possible to take measures against pirates getting on without being surprised, and it is possible to ensure the safety of vessel navigation. Also, if the warning means gives an alarm, the pirates may be given a disadvantage because they are in a disadvantageous situation, and it is possible to prevent the pirates from entering.

[Brief description of drawings]

FIG. 1 is a front view showing a situation in which a pirate is boarding a conventional vessel.

FIG. 2 is a top view showing a situation in which a pirate is boarding a conventional ship.

FIG. 3 is a view showing a pirate boarding detection device of the present invention.

FIG. 4 is a diagram showing an operating state of the pirate boarding detection device of FIG. 3;

[Explanation of symbols]

 7 Pirate boarding detection device 8 Wire 9 Strut 10 Limit switch 11 Siren

Claims (1)

[Scope of utility model registration request] 1. A plurality of struts that are installed so as to project to the sea side at predetermined intervals on the side of the hull of the hull, and slidably supported by the tip ends of the plurality of struts and erected in a projecting manner toward the sea side. A strip, a detection unit that is connected to the strip, detects a change in tension of the strip and outputs a detection signal, and an alarm unit that issues an alarm when the detection unit detects a change in tension of the strip. A pirate boarding detection device comprising: