JPS6271788A - Closing gear for inboard ramp cover - Google Patents

Abstract

PURPOSE:To make car movements on a deck ever so easy, by setting up a link mechanism consisting of an operating hydraulic cylinder and a cylinder support link in the underside of an almost intermediate part at each long side of a ramp cover. CONSTITUTION:A ramp cover 3 corresponding to a rectangular opening part 2 being bored in a deck 10 is attached to the deck 10 free of rotation at a short side 31 via a hinge 4. A short side 32 on the other side is made to be rotatable toward a deck 11 adjacent to an upper part of the deck 10. This invented device or a link mechanism consisting of an operating hydraulic cylinder and a cylinder support link is set up in the underside of an almost intermediate part at each slong side 33 of a ramp cover 3. With this constitution, since a pillar, a wall, etc., for supporting the operating hydraulic cylinder becomes unnecessary, car movements on the deck can be made so easy.

Description

DETAILED DESCRIPTION OF THE INVENTION □1 The present invention relates to an opening/closing device for an inboard lamp cover in a ship.

Loss of speed - Conventionally, in ships such as ships transporting vehicles such as automobiles,
In order to transfer vehicles between the upper and lower decks of the vehicle loading deck, which are installed horizontally in multiple layers inside the ship,
A rectangular opening is provided in one deck, and this opening can be closed by a lamp cover having a planar contour corresponding to the opening, and one of the pair of opposing short sides of the lamp cover is It is rotatably connected to the corresponding short side of an opening in the deck via a hinge, and the opening is normally closed with this lamp cover, so that vehicles can be loaded on top of this lamp cover as well. However, when it is necessary to transfer a vehicle between adjacent decks, the lamp cover can be pivoted upward or downward via the hinge on one of its short sides, and the other short side can be moved by the upper or lower deck. It is well known to install lamp covers in an inclined manner between adjacent decks, using the upper surface as a passageway for transporting vehicles.

Moreover, in order to carry out such a pivoting movement of the lamp cover, it is necessary - finally, to place the upper deck 1o above the lower deck 1o, as shown in FIG. 5 of the accompanying drawings. opening 2 made in
A pillar 20 or a wall is installed vertically near the center of each long side of the lamp cover 3, and each pillar 20 and each opposing long side of the lamp cover 3 are connected to a hydraulic cylinder 2.
1, and the operation of these hydraulic cylinders 21 causes a pivoting movement about a pivot 22, which is a pivot point between one short side of the lamp cover 2 and an opening in the deck. That's what I do.

i (-% t+ However, in such a conventionally known lamp cover opening/closing device, it is necessary to provide a pillar or wall on the hull side to support the hydraulic cylinder, and therefore, it is necessary to provide a pillar or a wall on the hull side to support the hydraulic cylinder. In addition to hindering movement, the hydraulic cylinder itself requires a large piston stroke.
There were problems such as the IT required a large space and was expensive.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a new opening/closing device for a lamp cover in a ship that can solve the above-mentioned problems in conventionally known devices.

In order to achieve this object, the present invention is based on the third aspect of the accompanying drawings.
As shown in Figures 4 and 4, an approximately rectangular opening 2 opened on the deck 1o of a ship such as a car transport ship has a corresponding planar contour that can be opened and closed freely, and the short side In order to pivot the inboard lamp cover 2, which is rotatably connected to the opposite short sides of the deck opening via a hinge, around this hinge,
In the middle of each opposing longitudinal side of the lamp cover 2,
A link mechanism 10 consisting of an operating hydraulic cylinder 11 and a cylinder support link 12 is arranged in the longitudinal direction of the lamp cover 3, and when the lamp cover 3 is in the closed state, the lamp cover 3 of each operating hydraulic cylinder 11 is It is pivotably connected to the lamp cover 3 via a pin 18 in the opposite direction to the hinge which is the pivotable connection point to the opening 2 in the deck 1°, and the other end is connected to the deck with one end in the same direction. Insert the pin 1 into a part of the 1° opening 2 as appropriate.
The cylinder support links 12 are pivotally connected via pins 16 to the other ends of the respective cylinder support links 12, which are pivotably coupled via pins 16. In this case, the cylinder support links 12 are arranged substantially horizontally and The pivotable connection point 18 of the working hydraulic cylinder 11 to the lamp cover 3 is connected to the pivotable connection point 15. of the cylinder support link 12 to the opening 2 in the 1° deck. ．． 152, and the vertical center line of the former is closer to the pivotable connection point of the lamp cover 3 to the opening 2 of the deck 1° than the vertical center line of the latter. This is a characteristic feature.

[When the operating hydraulic cylinder 11 is operated from the state shown in FIG. 3, as the piston rod end 11□ extends, the cylinder support link 12 is moved together with the operating hydraulic cylinder 11 into the state shown by the two-dot chain line. Further, with the extension of the piston rod end 11□, the lamp cover 3 is rotated to its deck i.
It turns around the pivotable connection point with the opening member o and is opened.

Tue-JLJL Hereinafter, Nos. 1 to 4 of the attached drawings showing one embodiment of the present invention will be described.
A detailed explanation will be given based on the figures.

First, in FIGS. 1 and 2, a part of a ship having a lamp cover according to an embodiment of the present invention is shown in a front view and a plan view. 1
A lamp cover 3, which has a substantially rectangular planar outline corresponding to a rectangular opening 2 formed at an angle of For example, the other short side 3□ is attached to the adjacent deck 1.degree. above the deck 1.degree. However, the bag 710 of the present invention can be rotated toward each long side 3. of the lamp cover 3. It is installed on the lower surface of the area approximately in the middle of the area.

That is, in this way, the bag Hto of the present invention has each long side 3. of the opening 2 of the deck 1°. For this purpose, each long side 3. of the lamp cover 3 is attached as shown in detail in FIGS. 3 and 4. In this case, the width is locally enlarged by a certain length in the mounting section, and the device 10 of the present invention is installed on the lower surface of this enlarged width section. And the device of the present invention! fio consists of an operating hydraulic cylinder 11 and a cylinder support link 12. Among these, cylinder support link 12
is the long side 3 of the lamp cover 3. a pair of rectangular elongated link plates 12 extending parallel to and spaced apart from each other; and 1
22, and those link boards 12. ．．
One end of 12□ has an opening parallel to this short side 3□ on the opposite side to the short side 31 of the opening 2 on the deck 1° where the hinge 4 is provided. An opening 2 is provided in a support member 13 that protrudes appropriately from the peripheral wall of the portion 2.
A pair of spaced brackets 14 affixed parallel to the long sides of the. ．． To 14□.

Pin 15, respectively. ．． 15. It can be rotated freely through the 1 inch. Also, these link boards 12. ．． 1
In the spacing between 2□, an actuating hydraulic cylinder 11 is arranged parallel to the cylinder support link 12, with its cylinder end 11. is link board 12. ．． It is rotatably attached to the other end of 12□ via a pin 16,
Also, the piston rod end 11. A pair of brackets 17. are fixed to the f-plane of the lamp cover 3 in parallel to the long sides thereof. ．． 17. It is rotatably attached to via a pin 18.

In this case, when the lamp cover 3 is in a state of closing the opening 2 made at 1° on the deck, the cylinder support link 12 is in an almost horizontal state and is not activated, as shown in FIG. Piston rod end 112 of hydraulic cylinder 11 for
The pin 18 whose pivotable attachment to the lamp cover 3 is a point is located above the pin 15.152 whose pivotable attachment to the deck 1o of the cylinder support link 12 is a point; The vertical centerline of pin 18 is the latter pin 15. ．． 15. With respect to the vertical center line of the lamp cover 3, the short side 3. is chosen to be closer to the pin 4 (Fig. 1) which is the pivotable connection point of the opening 2 to the corresponding short side of the deck 1°, and between their center lines there is a distance d. There is a difference in dimensions.

The device of the present invention has the above-mentioned configuration, and its operation is as follows.

First, in FIG. 3, the operating hydraulic cylinder 11 and the cylinder support link 12 are shown in the closed state of the lamp cover 3 by solid lines. When the cylinder 11 is operated so that its piston rod end 11□ extends,
As a result, the actuating hydraulic cylinder 11 pivots counterclockwise as seen in FIG. At the same time, the cylinder end 11. The cylinder support link 12, which is pivotably connected to the deck 1° via a pin 16, is also pivoted in the same direction around pin 15.152, which is its pivotable connection point to the deck 1°, as shown in FIG. , as shown by the two-dot chain line ^, the center of the pin 18, which is the pivotable connection point of the piston rod end 112 of the hydraulic cylinder 11 for operation to the lamp cover 3, and the connection point of the cylinder support link 12 to the deck 1° Pin 1 is a pivotable connection point
5. Center of 15□ and cylinder end 11 of hydraulic cylinder 11 for operation. The center of the pin 16, which is the pivotable connection point to the cylinder support link 12, lies on the same line. Therefore, by subsequently operating the actuating hydraulic cylinder 11 in the direction in which the piston rod end 11□ extends, the lamp cover 3 is moved so that the cylinder end 111 is attached to the deck 1° with one end attached to the pin 15. .

The lamp cover 3 is pivotably attached to the piston rod end 112 by being pivotably connected via a pin 16 to the other end of the cylinder support link 12, which is pivotably attached via the piston rod end 152. The lamp cover 3 can be tilted by pushing it up and pivoting it around the pin 4 (FIG. 1), which is a pivotable connection point at 1° of the deck.

On the other hand, in order to return the lamp cover 3 in this inclined state to its original state, the hydraulic cylinder 11 is operated in the direction of contracting its piston rod end 112. The operating hydraulic cylinder 11 and the cylinder support link 12 are in the state shown by the two-dot chain line in FIG. Piston rod end 11. When it is further contracted, it becomes vertical due to its own weight, as shown by the two-dot chain line B in FIG. Therefore, the cylinder end 11. and the cylinder support link 12, which is pivotally connected thereto via a pin 16, is connected to the vertical centerline of the pin 18, which is the pivotable connection point of the piston rod end 112 to the lamp cover 3, and the cylinder support link, respectively. Pin 15, which is the pivotable connection point of link 12 to deck 1°. ．． Since the vertical center line of 15 □ is displaced by the distance d, the hydraulic cylinder 11 for actuation is rotated to the cylinder support link 12 via the pin 16 which is the pivotable connection point of the cylinder support link 12. The pin 18 which applies a moment and is the pivotable connection point between the piston rod end 11□ and the lamp cover 3
is the center line, and is rotated clockwise as seen in FIG. 3 to return to the original state indicated by the solid line in the same figure, and the operating hydraulic cylinder 11 itself is also returned to the state indicated by the solid line in the same figure. do.

Since the present invention has the above-described structure and operation, there is no need for pillars, walls, etc. for supporting the hydraulic cylinder for operation, which were conventionally required. Therefore, it is possible to easily move the vehicle on the deck, and since the mounting position of the operating hydraulic cylinder can be arbitrarily selected, its capacity or dimensions can be easily reduced. This makes it possible to achieve the excellent effect of making it possible to effectively utilize the interior space of the hull.

[Brief explanation of drawings]

FIG. 1 is an enlarged vertical sectional view of a part of a vehicle carrier equipped with an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is an enlarged front view showing an embodiment of the present invention. , FIG. 4 is a plan view thereof, and FIG. 5 is a schematic diagram showing an example of a conventional lamp cover support means. 1o... Deck, 2... Opening, 3... Lamp cover, 10... Device of the present invention, 11... Hydraulic cylinder for operation, 12... Cylinder support link.

Claims (1)

[Scope of Claims] 1. A lamp having a corresponding substantially rectangular planar contour that can open and close a substantially rectangular opening opened on the deck of a ship such as a car transport ship. The inboard lamp cover is configured to connect one of its pair of opposing short sides to the opposite short side of the deck opening via a hinge so as to be able to pivot about the hinge. In order to rotate the lamp cover, a link mechanism consisting of an operating hydraulic cylinder and a cylinder support link is arranged in the middle of each of the opposite longitudinal sides of the lamp cover in the longitudinal direction of the lamp cover. In the closed state of the cover, each operating hydraulic cylinder is pivotally connected to the lamp cover in the opposite direction to the hinge, which is the pivotable connection point to the opening in the deck of the lamp cover, and the other end is connected in the same direction. One end is pivotally connected to the other end of each cylinder support link which is suitably pivotally connected to a portion of the opening in the deck, in which case the cylinder support links are arranged in a generally horizontal direction. and the pivotable connection point of the operating hydraulic cylinder to the lamp cover.
The point of pivotable connection to the deck opening of the cylinder support link is above and the vertical centerline of the former is higher than the vertical centerline of the latter. A lamp cover opening/closing device characterized by being made closer to each other. 2. Claim 1, wherein the pivotable connection end of the operating hydraulic cylinder to the lamp cover is the end of the piston rod.
Lamp cover opening/closing device as described in section. 3. Claim 1 or 2, wherein the cylinder support link is composed of a pair of link plates arranged in parallel at intervals, and an operating hydraulic cylinder is arranged between the link plates. Lamp cover opening/closing device.