JP2008155669A - Locking device for marine door and marine door provided with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for a marine door satisfying countermeasure for a pirate and countermeasure at emergency, and a marine door provided with it. <P>SOLUTION: The locking device for the hinge type marine door for the vessel has a fitting body provided separately from a locking member for locking/unlocking of the marine door by a coaxial handle from the inside/outside of a hull and directly engaged with the marine door by a pair of or a plurality of pairs of bolts/nuts fixed/stood on a standing up part; and a reversal type fastener rotated by 180° making a hinge shaft provided on a leg part of the fitting body perpendicularly and continuously contacted with the standing up part of the fitting body as a center to enable locking/unlocking of the marine door only from the inside of the hull. The locking device is provided with an engagement means for certainly retaining the locking/unlocking state of the reversal type fastener. The locking device for the vessel having a fastening/relaxing means provided with a specific polygonal nut in which one or a plurality of bolts/nuts are only fastened/relaxed by a specific tool, and the marine door provided with it are provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a locking device for a marine door and a marine door provided with the same.

According to the “International Regulations on the Security of Ships and Port Facilities (ISPS Code)”, which came into effect on July 1, 2004, it is demanded to enhance security even more than ever for ships on the voyage. In recent years, there have been incidents of pirates attacking ships in the Malacca and Singapore Straits, and the need for anti-piracy measures is increasing.
Under such conditions, various lock systems that can lock and unlock the door from the inside of the residential area have been proposed as a countermeasure against piracy and as a countermeasure against theft of articles stored in the ship. (For example, refer to Patent Document 1).
Japanese Utility Model Publication No. 50-36052

However, many of the conventional measures have been modified as a locking device by modifying one part of the rotary clasp used to open and close the weathertight door of the ship door as these measures. There was a dislike that was likely to be.
In addition, a lock system that can lock and unlock the door only from the inside of the ship's ward due to anti-piracy measures will not necessarily be sufficient for unlocking from the outside for rescue by Coast guard in an emergency. It is not a thing.
In view of the above, in the present invention, in addition to the usual means for opening and closing a weathertight door, in addition to anti-piracy measures, a locking device for a marine door that sufficiently satisfies security in an emergency, and a marine vessel provided with the same The purpose is to provide the door.

The locking device for a marine door of the present invention is
1) A locking device for a hinge type marine door for a ship, which is provided separately from a locking member that locks and unlocks the ship door with a coaxial handle from the inside and outside of the ship, and is fixed to a rising part. A metal fitting body that is directly engaged with a marine door by one or more erected bolts and nuts, and a hinge shaft provided at a leg portion of the metal fitting body that is orthogonally connected to the rising portion of the metal fitting body. It has a reversible clasp that can be rotated and rotated 180 ° to lock and unlock the marine door only from inside the ship.
The reversible clasp includes an engagement means for securely holding the unlocked state, and the one or more bolts and nuts are tightened only by a special tool from the outside of the ship. It has a means.
2) In the above 1), the hinge shaft is a pin or bolt / nut fixed upright on the leg of the metal fitting body, and the engagement means is a bolt / nut standing upright in parallel with the hinge shaft. Yes,
3) In the above 1) or 2), the loosening means is a cap nut type, and the nut is a special polygon nut other than a hexagon nut,
4) In the above 1) to 3), it is possible to easily check the position of the special polygon nut by means of the shielding means that cannot always check the special polygon nut and the method as in the first embodiment in an emergency. It is also provided with an explicit means.

The marine door of the present invention is
5) At least one set of the locking devices described in 1) to 4) above is provided.

  With the locking device for a marine door of the present invention, it is possible to provide a marine door that not only counters piracy but also sufficiently satisfies security in an emergency, is easy to handle, and is unlikely to interfere with malfunction.

FIG. 1 is a schematic diagram for explaining the configuration of the first embodiment of the present invention. (A) is a figure explaining the state at the time of normal unlocking, (b) is a figure explaining the state at the time of locking, such as anti-piracy measures, (c) is a figure explaining the state at the time of emergency unlocking.
FIG. 2 is an enlarged explanatory view for explaining the operation of the first embodiment of the present invention.
FIG. 3 is a schematic diagram for explaining the configuration of the second embodiment of the present invention. (A) is a figure explaining the state at the time of normal unlocking, (b) is a figure explaining the state at the time of locking, such as anti-piracy measures, (c) is a figure explaining the state at the time of emergency unlocking.
FIG. 4 is a view showing an example of the side of the living side of the marine door provided with the locking device of the present invention.
In the figure, 1 is a metal fitting body, 11 is a rising portion of the metal fitting body, 12 is a leg portion of the metal fitting body, 2 is a reversible clasp, 21 is a hinge shaft pin burr hole of a reversing clasp, and 22 is a reversing clasp. Fitting hole for fixing bolt of metal fitting, 23 is the tip of the reversible clasp, 24 is a fool hole for hinge shaft pin in the leg of the metal fitting body, and 25 is a hole for fixing bolt in the leg of the metal fitting body (when unlocked) ), 26 is a fixing bolt fixing hole in the leg of the metal fitting body (for locking), 3 is a hinge shaft pin or bolt / nut, 4 is a reversing type fixing bolt / nut, and 5 is a metal fitting Bolts for fixing the main body to the marine door, 6 is a washer, 7 is a special polygon nut, 8 is a special tool, 9 is a protective casing, 10 is an anti-rotation fitting, 100 is a marine door, 110 is a handle type locking device, 120 is the locking device of the present invention, 1 0 is the access opening.
In addition, the dimension and shape of each part in the drawings are exaggerated or simplified for the sake of explanation, and the present invention is not limited thereby.

As shown in FIG. 4, a general marine door 100 is provided with a plurality of handle-type locking devices 110 for weather-tight doors around the marine door 100, and the marine door 100 is opened and closed to the hull residence area. It is set in the part 130 so that opening and closing is possible centering on the hinge part of the door.
However, as described above, the handle-type locking device 110 can be opened and closed inside and outside the ship door 100, and the unlocking function in an emergency has no particular problem. For this reason, there has been a conventional problem that a special rotary clasp that can be operated only from the inside of the living area has been used in one place among the plurality of handle type locking devices 110. Since the rotary fastener is also used when the crew opens and closes the marine door 100, there is a high possibility that the special rotary fastener will be accidentally operated and locked from within the residential area. It was.
The present invention is basically a locking device 120 having a reversible fastener 2 provided separately from the handle type locking device 110 and operable only from the inside of a residential area. It is mainly provided on the residential area side opposite to the opening / closing hinge part of the ship door 100.

1 and 2, the locking device 120 of the first embodiment has a fixing bolt portion 5 for fixing the metal fitting body 1 to the side surface of the marine door 100 in the living area. The fixing bolt portion 5 is connected and fixed to the rising portion 11 of the metal fitting body 1 by welding or the like, and the nut 7 used therefor has a special polygonal shape. This special polygon shape is formed by a special shape so that it cannot be easily loosened and removed by a pirate. For example, as shown in FIG. 5, (a) pentagonal shape, (b) triangular shape, (c) key shape, etc., other than hexagonal shapes that cannot be loosened and removed with a normal hexagonal nut tool And For security reasons, it is possible to make it impossible for anyone other than those involved to know what shape is used.
The fixing bolt portion 5 has a corrosion resistance against seawater and the like, and has a sufficient material strength so as not to be destroyed by pirates, and it is necessary to use a material suitable for welding joining with the metal fitting body 1. SUS304L, 316L, etc. with added weldability are preferred. Further, the strength of the bolt needs to have a cross-sectional strength that keeps the strength to prevent destruction by pirates, and the tensile strength is preferably 300 to 400 (N / mm ² ). If it is 300 or less, it is not sufficient for the load resistance (3.6 KN) from experience and many construction experiences, and if it is 400 or more, the cost increases rapidly.

A leg portion 12 of the metal fitting body 1 is provided so as to be connected to the rising portion 11 of the metal fitting body 1 at a substantially right angle. The leg 12 is fixedly held on the surface of the leg 12 at a symmetrical position with a pin 24 for a hinge for the reversing clasp 2 or a hole 24 for the bolt and nut 3 in the center. For this purpose, fool holes 25 and 26 for fixing bolts and nuts 4 for reversing fasteners are provided. Note that the hinge pin or bolt 3 may be fixed and erected directly to the leg portion 12 by welding or the like, and the fool hole 24 may be omitted.
As shown in FIGS. 1 and 2, the reversible fastener 2 is usually formed of a steel plate, and a center portion is provided with a hole 21 for the hinge shaft pin 3 for reversal. The hole 21 is provided with a hole 22 corresponding to the fixing bolt / nut 4 for the reversing fastener.
The metal fitting body 1 is not necessarily a plate-like material.
In the first embodiment, each diameter of the fixing bolt portion 5, the hinge pin, or the bolt 3 is 10 mm as an example. Moreover, the thickness of the metal fitting body 1 and the reversible fastener 2 is 9 mm each.

The effect | action in the present Example 1 by the said structure is explained in full detail below.
In the normal state of FIG. 1A (when unlocked), the marine door 100 is locked to the entrance / exit opening 130 of the ship by a handle type lock 110 (not shown). In this state, the locking device 120 of the present invention provided separately from the handle type locking 110 is in an unlocked state. That is, the reversible clasp 2 is fixedly held at the position of the fool hole 25 by the bolt 4 at the reversing position, which is a position where the reversing opening 130 is not engaged.
From this normal state (when unlocked), when the anti-piracy measures are required, that is, in order to prevent the pirates from entering the residential area, the locking device 120 of the present invention is operated from the residential area side. That is, the unlocking state of the reversible clasp 2 is released, the reversible clasp 2 is reversed by 180 ° with the hinge shaft pin 3 as the center, and the tip 23 of the reversible clasp 2 is moved into the ship entrance / exit opening 130. The baffle hole 26 of the leg 12 and the burr hole 22 of the reversible fastener 2 are made to coincide with each other and fixedly held by the bolt 4. Thereby, the ship door 100 will be in the state which cannot open | release from the outside.

The locked state of FIG. 1 (b) in the first embodiment can prevent the pirates from entering the residential area from the outside by this locked state as described above. However, this state is external in an emergency such as a distress. If it is necessary to open the door from the outside, the emergency door opening from the outside is also refused.
As shown in FIG. 1C of the first embodiment, the present invention is a fixing bolt that is provided at the rising portion 11 of the metal fitting body 1 during emergency unlocking and fixes the locking device 120 of the present invention to the ship door 100. By loosening the 5 special polygon nut 7, the locking device 120 can be disconnected from the marine door 100 and the marine door 100 can be opened.

According to the present invention, this emergency opening is performed by loosening the special polygon nut 7 of the fixing bolt 5, and as described above, the shape of the special polygon nut 7 is shown in FIG. It is characterized by a special shape that cannot be loosened with a nut tool. Any shape such as a pentagon shape, a triangle shape, and a key shape may be used as long as the shape meets this purpose. Of course, it is necessary to facilitate a tool that fits the special polygon nut 7, and it is also necessary to have a security measure whose shape is not easily shown to the general public.
A structure in which the nut surface cannot be recognized by a deep cap nut method, a method of covering the guide portion entrance of the cap nut with a shielding pair, and the like are conceivable.

  Also, in the event of an emergency, the position of the special polygon nut 7 may not be easily confirmed due to the dark night. Assuming this, a paint that emits light when ultraviolet light is applied to the special polygon nut is applied to irradiate a portable ultraviolet light. Thus, the nut position may be easily confirmed even during nighttime emergency. In addition, the storage location of the special tool can be easily confirmed even at night by indicating the storage location with a light-emitting paint.

Furthermore, means for delaying the unlocking processing time by the pirate as much as possible, for example, polygon nuts which are consciously different from each other as the specially shaped nuts of the two fixing bolts 1 can be used.
In addition, the height h of the combing around the special polygon nut of the cap nut method in the first embodiment is about 2 to 5 times the bolt diameter in consideration of protection of the bolt portion, and the door fitting and Design attention not to interfere. The inner diameter of the combing is set with an appropriate slight clearance according to the outer diameter of the special tool to be used.
If the combing height h is less than twice the bolt diameter, the nut may be loosened by a tool other than a special tool. If the height h is more than five times the bolt diameter, the combing protrusion amount may be However, it was confirmed that the effect on the nut loosening treatment was not advantageous for the interference with the door fittings.

  With this first embodiment, it is possible to lock and unlock the door only from the inside of the ship's residence area for anti-piracy, etc., and it can sufficiently cope with unlocking from the outside for rescue by Coast guard etc. in case of emergency A locking device can be provided.

In the first embodiment, as shown in FIG. 3, there are two sets of bolts and nuts (5, 6, 7) for fixing the locking device 120 of the present invention to the ship door 100 in the first embodiment. The other structures and the operation of each part are the same as in the case of the first embodiment and are omitted.
The second embodiment is adopted when the required strength can be ensured with one bolt and the design is established, and is not only advantageous in cost compared with the first embodiment but also unlocking processing in an emergency. Becomes easy. The diameter of the fixing bolt portion 5 for fixing the metal fitting body to the marine door in the second embodiment is 16 mm as an example, and other dimensions are in accordance with the first embodiment.

  The locking device of the present invention can be used not only for marine doors but also for doors that require similar requirements.

It is a schematic diagram for demonstrating the structure of Example 1 of this invention. (A) is a figure explaining the state at the time of normal unlocking, (b) is a figure explaining the state at the time of locking, such as anti-piracy measures, (c) is a figure explaining the state at the time of emergency unlocking. It is an expansion explanatory view for explaining operation of Example 1 of the present invention. It is a schematic diagram for demonstrating the structure of Example 2 of this invention. (A) is a figure explaining the state at the time of normal unlocking, (b) is a figure explaining the state at the time of locking, such as anti-piracy measures, (c) is a figure explaining the state at the time of emergency unlocking. It is a figure which shows one example of the living side of the ship door which provided the locking device of this invention. It is a figure which shows the example of a special polygon nut.

Explanation of symbols

1 bracket body,
11 The rising part of the bracket body,
12 Legs of the bracket body,
2 Reversing fasteners,
21 Flip hole for hinge shaft pin of reversible clasp,
22 Fool hole for fixing bolt of reversible fastener.
23 The tip of the reversing clasp,
24 Fiddle holes for hinge shaft pins in the legs of the metal fitting body,
25 Stiff holes for fixing bolts in the legs of the bracket body (for unlocking)
26 Stiff holes for fixing bolts on the legs of the bracket body (for locking)
3 Pin for hinge shaft or bolt / nut,
4 Retaining bolts and fixing bolts and nuts,
5 Fixing bolts for fixing the metal fittings to the ship door,
6 washer,
7 Special polygon nuts,
8 Special tools,
9 Protective casing 10 Anti-rotation bracket 100 Marine door,
110 Handle type locking device,
120 Locking device of the present invention,
130 In / out opening.

Claims (5)

A locking device for a hinge type marine door for a marine vessel, the marine door being provided separately from a locking member for locking and unlocking by a coaxial handle from the inside and outside of the hull, and fixed to a rising portion 180 ° centering on a hinge shaft provided on a leg of the metal fitting body that is orthogonally connected to the rising portion of the metal fitting body that is directly engaged with the marine door by one or more bolts and nuts. It has a reversible clasp that can rotate and lock and unlock the marine door only from inside the ship,
The reversible clasp includes an engagement means for securely holding the unlocked state, and the one or more bolts and nuts are tightened only by a special tool from the outside of the ship. A ship door locking device characterized by comprising means. 2. The hinge shaft according to claim 1, wherein the hinge shaft is a pin or bolt / nut fixed upright on a leg portion of the metal fitting body, and the engagement means is a bolt / nut standing upright in parallel with the hinge shaft. Locking device for marine doors. The locking device for a marine door according to claim 1 or 2, wherein the locking means is a cap nut type, and the nut is a special polygon nut other than a hexagon nut. The tightening means is provided with a shielding means that cannot always check the special polygon nut and an explicit means that makes it possible to easily check the position of the special polygon nut by an operation from inside the ship in an emergency. Item 4. A ship door locking device according to any one of Items 1 to 3. A marine door comprising at least one set of the locking device according to claim 1.

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