JPH08216975A - Doorway opening and closing device for boat loaded inboard - Google Patents

Abstract

PURPOSE: To prevent formation of a protrusion protruding outward from a side shell surface, in an opening and closing device for a cover at a side doorway for a loading boat, such as a rescue boat loaded in a ship. CONSTITUTION: A doorway 2 for a loading boat 4 is formed in a side shell part 1 and a cover 3 for the entrance 2 is matched with the inner peripheral edge of the doorway 2 and closed in such a manner to be positioned flush with a side plate surface. Vertically oblique rollers 7 and 8 making a pair are arranged at the inner arm 6 of the upper end part of the cover 3 and guide rails 9a and 9b capable of guiding the rollers 7 and 8 also making a pair are erected through the doorway 2 slightly near the inside of a ship in such a manner to have guide surfaces positioned facing each other. Inclination guide parts 9a-1 and 9b-1 are formed at the upper ends of the guide rails 9a and 9b, respectively. Since at the initial stage of releasing of the cover 3, the cover 3 is lowered as it is moved slightly forward through the doorway 2, interference with the edge part of the doorway 2 is prevented from occurring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for an onboard boat such as a lifeboat or a transportation boat mounted on a ship.

[0002]

2. Description of the Related Art A passenger ship is equipped with a large number of large lifeboats on the port side in case of an emergency of a large number of passengers and crew members. Have a big impact. In other words, the above-mentioned lifesaving equipment poses an important issue in the exterior design of the ship. Therefore, even with the conventional doorway opening / closing device for onboard boats,
In order to adjust the appearance of a ship, a technique has been developed in which a lifeboat is mounted on the ship, a cover is provided at the entrance and exit, and the cover is divided into an upper cover and a lower cover to open and close.

[0003]

By the way, in the device in which the cover at the entrance / exit for the loading boat is divided into the upper and lower parts as described above, the guide plate of the lower cover is located above the outer plate surface of the side of the ship when the cover is closed. Is also attached to the outside,
There is a problem that the appearance is impaired and corrosion is caused, and there is also a problem that the structure is complicated when the cover is divided into two.

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and enables the cover of the loading boat entrance / exit on the ship side outer plate to be flush with the entrance / exit while closing the same. The purpose of the present invention is to provide an entrance / exit opening / closing device for an onboard boat, which is provided with a guide mechanism for opening / closing the ship, so that no protrusions that impair aesthetics or cause corrosion are provided on the outer plate surface of the ship. To do.

[0005]

In order to achieve the above-mentioned object, a doorway opening / closing device for an onboard boat according to the present invention is provided with an entrance / exit for a boat mounted on the boat, formed at a side plate of a boat. A cover that can be closed so as to have the same outer surface as the ship side outer plate surface in alignment with the inner peripheral edge of the entrance and exit, and elevating means of the cover are provided, and a guide portion is attached inside the upper end of the cover. The arm is projected, and guide rails for opening the cover by moving the cover downward while guiding the guide part of the arm are erected at positions slightly inboard on the front and rear sides of the entrance and exit, An inclined guide rail portion is formed at an upper end portion of the guide rail in order to move the cover slightly forward from the entrance and exit in the opening operation of the cover.

Further, in the entrance / exit opening / closing device for an onboard boat of the present invention, the guide portion attached to the arm is provided as a pair of rollers which are diagonally paired up and down, and the guide rail is provided so as to guide each of these rollers. It is also characterized in that they are arranged so as to have guide surfaces facing each other in pairs.

Further, the doorway opening / closing device for an onboard boat of the present invention is characterized in that a roller capable of rolling in contact with the outer plate surface of the ship is mounted near the lower edge of the inside of the cover.

[0008]

In the above-described entrance / exit opening / closing device for an onboard ship of the present invention, the guide portion of the arm projecting inside the upper end of the cover of the entrance / exit of the onboard boat is used to open and close the cover by the lifting means. Initially, as the cover descends, it is guided by the inclined guide rail part at the upper end of the guide rail and is guided slightly forward from the entrance, so that the cover interferes with the upper and lower edges of the entrance. Then, as the guide portion descends while being guided by the guide rail, the cover also descends along the ship-side outer plate surface and is opened.

At this time, if the guide portions are mounted on the arm as a pair of rollers diagonally up and down, and the guide rails also have a pair of guide surfaces facing each other to guide each roller. Due to the cooperative action of each roller and the guide rail, the opening operation of the cover is stably performed. Further, if a roller that rolls in contact with the ship-side outer plate surface is provided near the lower edge of the inside of the cover, the inner surface of the cover will not directly contact the ship-side outer plate surface when the cover is opened and closed. Therefore, the opening and closing action can be performed more smoothly.

[0010]

1 is a front view schematically showing an open state of the above-mentioned device in a ship-side outer plate portion. FIG. 3 is a front view showing a closed state of the above device, FIG.
2 is a cross-sectional view taken along the line AA of FIG. 2, FIG. 4 is a cross-sectional view showing an opened state of the cover in the apparatus of FIG. 3, and FIG. 5 is an explanation showing an amount of pushing, etc. from the opened state of the cover to the closed state of the apparatus. FIG. 6 is a cross-sectional view showing another example of the cover elevating means in the above-mentioned device together with the davit structure of the lifeboat.

As shown in FIGS. 1 to 4, an entrance / exit 2 of a loading boat 4 such as a lifeboat or a transportation boat stored in the ship is formed in a ship-side outer plate portion 1 and aligned with an inner peripheral edge of the entrance / exit 2. And a cover 3 that can be closed so as to have the same outer surface as the ship-side outer plate surface, and a winch as an elevating means for the cover 3.
14 and wire 10 are provided. Note that reference numeral 11 in FIG. 2 indicates a wire root stop and reference numerals 12 and 13 indicate pulleys.

An arm 6 provided with rollers 7 and 8 as guide portions is provided inside the upper end of the cover 3 so as to guide the rollers 7 and 8 of the arm 6 downward. Guide rails 9 for moving and opening the rails are erected on the front and rear sides of the doorway 2 at a position slightly closer to the inside of the ship.

The rollers 7 and 8 serving as the above-mentioned guide portions are provided so as to make a pair diagonally in the vertical direction, and the above-mentioned guide rails 9 also form a pair so as to guide the rollers 7 and 8, respectively. Are arranged as two guide rails 9a and 9b so as to have guide surfaces facing each other.

Then, at the beginning of the opening operation of the cover 3, the cover 3 can be moved slightly forward from the doorway 2.
Inclined guide rail portions 9a-1 and 9b-1 are formed at the upper ends of the guide rails 9a and 9b. Further, a rubber roller 3a capable of rolling in contact with the outer surface of the ship side outer plate portion 1 is mounted near the lower edge of the inside of the cover 3.

In the above-described entrance / exit opening / closing device for an onboard boat of the present embodiment, the arm 6 is provided so as to project inside the upper end of the cover 3 for the entrance / exit 2 of the onboard boat 4, and the rollers 7 in the arm 6, When the cover 3 is lowered, the guide rails 9a,
9b Upper end inclined guide rail portions 9a-1 and 9b-1
As you are guided to and move from the entrance 2 to the front,
The cover 3 does not interfere with the upper and lower edges of the doorway 2.

The rollers 7 and 8 are connected to the guide rail 9
As it descends while being guided by a and 9b, the cover 3
Also descends along the outer skin of the ship and is released.
At that time, the rollers 7 and 8 are mounted on the arm 6 so as to be diagonally paired with each other, and the guide rails 9a and 9b for guiding the rollers 7 and 8 are provided with a pair of guide surfaces facing each other. Therefore, the opening operation of the cover 3 can be stably performed by the cooperative action of the rollers 7 and 8 and the guide rails 9a and 9b.

Since a roller 3a is provided near the lower edge of the inside of the cover 3 so as to be in contact with the outer shell surface of the ship, the inner surface of the cover 3 is opened and closed by the outer shell of the ship. Since it does not come into direct contact with the surface, the opening and closing action can be performed more smoothly. Further, in the closed state of the cover 3, the packing 2 attached to the inner peripheral edge of the entrance / exit 2.
With a, sufficient water tightness is maintained. Since the outer surface of the closed cover 3 is flush with the outer surface of the side plate 1 of the ship, the grace of the appearance is maintained and the entire width of the hull does not increase. It does not cause any obstacles.

A permanent magnet is attached to the bearing portion of the roller 3a so that the roller 3a does not separate from the surface of the side plate of the ship, and the roller 3a is attracted to the side plate of the steel to cause the roller 3a to move. It may be configured to be attracted to a surface. Further, as the arrangement condition of the roller 3a, when the cover 3 is opened and closed, the roller 3a is a large square window 5a or a round window 5b in the ship side outer plate portion 1.
It is desirable to set the mounting position of the roller 3a so that it does not pass through.

As shown in FIG. 5, guide rollers 7 and 8 are provided.
Are arranged diagonally above and below each other, but their horizontal distance e is set to the same dimension as the mutual distance e ′ between the guide surfaces of the guide rails 9a and 9b facing each other, and when the cover 3 is closed. The inclined guide rail portions 9a-1 and 9b-1 at the upper ends of the guide rails 9a and 9b are attached to the rollers 7,
The amount W by which 8 is retracted is set to the same dimension as the amount W'of pushing the cover 3 from the open state to the closed state.

FIG. 6 shows an example in which a jig cylinder in which a pulley device 15 and a hydraulic cylinder 16 are combined via a wire 10 is used in place of the winch 14 as the cover raising / lowering means, and at the same time, a hinge type davit is used. 17 is also shown. In this example, the hydraulic cylinder 16
Since the wire 10 is sufficiently paid out by the action of the pulley device 15 in accordance with the extension operation of the cover 3, the cover 3 causes the rollers 7 and 8 of the arm 6 in the cover 3 to move to the guide rails 9a, as in the case described above. The cover 3 is opened while being guided along 9b.

The guide rail 18 for moving the davit and the rollers 19a, 19b for moving the davit are provided on the deck.
With the loading boat 4 as a lifeboat suspended by the davit 17 supported by the
After moving the 17 laterally from the solid line position to the chain line position, the lower part of the davit 17 is swayed out of the ship, and then the loaded boat 4 is descent-launched. In this way, when the loading boat 4 is in the retracted state, the loading boat 4 is stored without projecting outward from the hull skin 1 and the loading boat 4 is completely covered with the cover 3 closed. Become.

[0022]

As described in detail above, the following effects can be obtained by the doorway opening / closing device for an onboard boat according to the present invention. (1) Since the outer surface of the closed cover is flush with the outer surface of the ship-side outer plate, the grace of the appearance is maintained and the overall width of the hull does not increase, so when passing through the Panama Canal, etc. It will not cause any obstacles. (2) The guide part of the arm protruding from the inside of the upper end of the cover at the entrance / exit of the loaded boat is fixed at the upper end of the guide rail as the cover descends at the beginning of the opening operation of the cover by the lifting means of the cover. Since it is guided by the inclined guide rail portion and is guided slightly forward from the entrance, the cover does not interfere with the upper edge and the lower edge of the entrance. (3) When the guide portions are mounted on the arm as a pair of rollers which are diagonally paired up and down, and the guide rails for guiding each roller also have a pair of guide surfaces facing each other, By the cooperation with the guide rail, the opening / closing operation of the cover can be stably performed. (4) If a roller that rolls in contact with the ship-side outer plate surface is provided near the lower edge of the inside of the cover, the inner surface of the cover may directly contact the ship-side outer plate surface when the cover is opened and closed. It will be lost and the opening and closing action will be carried out more smoothly.

[Brief description of drawings]

FIG. 1 is a front view schematically showing an open / close state of a doorway opening / closing device for an onboard boat as one embodiment of the present invention.

2 is a front view of the device of FIG. 1 in a closed state.

FIG. 3 is a sectional view taken on line AA of FIG. 2;

FIG. 4 is a cross-sectional view showing an open state of the cover in the apparatus of FIG.

5 is an explanatory diagram showing a pressing amount and the like from the open state to the closed state of the cover in the apparatus of FIG.

FIG. 6 is a cross-sectional view showing another example of the cover elevating means in the apparatus of FIG. 2 together with the davit structure of the lifeboat.

[Explanation of symbols]

 1 Ship side outer plate part 2 Entrance / exit 2a Packing 3 Cover 3a Roller 4 Equipped boat 5a Large square window 5b Round window 6 Arm 7, 8 Roller as guide part 9, 9a, 9b Guide rail 9a-1, 9b-1 Inclined guide rail Part 10 Wire 11 Wire root stop 12, 13 Pulley 14 Winch 15 Pulley device 16 Hydraulic cylinder 17 Davit 18 Davit moving guide rail 19a, 19b Davit moving roller 20 Hydraulic cylinder

Claims (3)

[Claims] 1. A cover which is formed in a ship-side outer plate part of an entrance / exit of a loading boat housed in a ship and which can be closed so as to have an outer surface which is aligned with an inner peripheral edge of the entrance / exit and has the same outer surface as the ship-side outer plate part. And an elevating means for the cover are provided, and an arm provided with a guide portion is provided inside the upper end portion of the cover so as to move the cover downward while guiding the guide portion of the arm. Guide rails for opening the cover are set up at positions slightly closer to the inside of the ship on the front and rear sides of the entrance and exit, and the guide rail is moved slightly forward from the entrance and exit in the initial stage of opening operation of the cover. An entrance opening / closing device for an onboard boat, wherein an inclined guide rail portion is formed at the upper end of the. 2. The doorway opening / closing device for an onboard boat according to claim 1, wherein the guide portion attached to the arm is provided as a pair of vertically diagonal rollers so that the rollers can be guided respectively. An inlet / outlet opening / closing device for an onboard boat, wherein the guide rails are also arranged so as to form a pair of guide surfaces facing each other. 3. The entrance / exit opening / closing device for an onboard ship according to claim 1, wherein a roller capable of rolling in contact with a ship-side outer plate surface is mounted near a lower edge portion inside the cover. An entrance opening and closing device for onboard boats, characterized by: