JPH0647400B2 - Switchgear for lamp covers in ships - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inboard lamp cover opening / closing device for a ship.

2. Description of the Related Art Conventionally, in ships such as vehicle transport ships such as automobiles,
In order to transfer the vehicle between the decks that are vertically adjacent to the vehicle loading deck that is installed horizontally in multiple layers on the ship,
A rectangular opening is provided on one deck, and this opening can be closed by a lamp cover having a corresponding planar contour, and one of a pair of opposing short sides of this lamp cover is It is pivotally connected to the corresponding short side of the opening opened on the deck via a hinge, and the opening is normally closed with this lamp cover so that the vehicle can be loaded on this lamp cover. However, when it is necessary to transfer the vehicle between the two adjacent decks, the lamp cover is swung upward or downward through the hinge on one short side, and the other short side is turned by the upper or lower deck. It is well known to support and thus install the lamp cover in an inclined state between the adjacent decks, and use this upper surface as a passage for transporting the vehicle.

The opening in order to perform a pivoting movement of such a lamp cover is generally as shown in Figure 5 of the accompanying drawings, drilled above the deck 1 ₁ on the deck 1 ₀ the lower Pillars 20 or walls are installed vertically near the center of each long side of part 2, and each pillar 20 and lamp cover 3
The opposing long sides of are connected to each other via the hydraulic cylinders 21, respectively, and by the operation of these hydraulic cylinders 21,
A pivoting movement, which is a pivoting point between one short side of the lamp cover 2 and the opening of the deck, is pivotally moved.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventionally known opening / closing device for a lamp cover, it is necessary to provide a pillar, a wall, or the like on the hull side to support the hydraulic cylinder, and therefore, on the deck. In addition to obstructing the movement of the vehicle, there is a problem that the hydraulic cylinder itself requires a large piston stroke, a large space is required for its installation, and the cost is high.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ship interior lamp cover opening / closing device for a ship, which is capable of overcoming the above-mentioned problems in the conventional known devices.

Means for Solving the Problems In order to achieve this object, the present invention provides a third embodiment of the accompanying drawings.
And 4 as shown in FIG., The short sides together has been opened on the deck 1 ₀ in vessels such as an automobile transport ship, the corresponding planar contour closing openably substantially rectangular opening 2 One of the inboard lamp covers 2 which is rotatably connected to the opposite short sides of the opening of the deck through a hinge so that the inboard lamp cover 2 faces the lamp cover 2 in order to rotate about this hinge. An operating hydraulic cylinder 11 and a cylinder support link are provided in the middle of each side in the longitudinal direction.
Link mechanism 10 consisting of 12 and lamp cover 3
Longitudinally disposed of, in the closed state of the lamp cover 3, the deck 1 ₀ lamp cover 3 of the actuating hydraulic cylinder 11
Is pivotally connected to the lamp cover 3 through the pin 18 in the direction opposite to the hinge, which is the pivotal connection point to the opening 2, and the other end is connected to the deck with one end in the same direction.
1 ₀ of the appropriate part of the pin 15 ₁ opening 2, 15-pin on the other end of the cylinder support links 12 which are pivotally connected via the ₂
The cylinder support link 12 is rotatably connected to the ramp cover 3 via the 16 and is connected in a substantially horizontal direction.
Is deck 1 ₀ pivotable connection point 15 ₁ of the opening 2 of the cylinder support links 12, 15 the former of the vertical center line with is higher than _2, than the latter of the vertical center line, lamp cover 3
Lamp cover opening and closing device which is so closer to the pivotable connection points of the opening 2 of the deck 1 ₀ is characterized in.

From the state shown in FIG. 3 for work, when actuating the actuating hydraulic cylinder 11, with the extension of its piston rod end portion 11 _2, the cylinder support links 12, shown in two-dot chain line A in conjunction with actuating the hydraulic cylinder 11 is pivoted state, further, with the extension of the piston rod end portion 11 _2, the lamp cover 3 is pivoted about pivot freely point of attachment to the opening member of the deck 1 _0, and be opened.

Embodiment Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 4 of the accompanying drawings showing an embodiment thereof.

First, FIGS. 1 and 2 show a front view and a plan view of a part of a ship having a lamp cover provided with an embodiment of the present invention. approximately lamp cover 3 has a rectangular plane contour, hinge at one short side 3 ₁ of the short side of a pair of its opposite, corresponding to the rectangular opening 2 opened in 1 ₀ 4 through, the deck 1 ₀ is mounted pivotally with respect to, and the other short side 3 ₂ is, for example, is pivotable towards the deck 1 ₁ adjacent the upper of the deck 1 ₀ and that, the present invention device 10 is intended to be placed substantially on the bottom surface of the intermediate portion of the long sides 3 ₃ of the lamp cover 3.

That is, in this way, the present invention device 10 is intended to be attached to an intermediate portion of the long sides 3 ₃ of the opening 2 of the deck 1 _0, as shown in detail in the third and fourth figures, this end , each long side 3 ₃ of the lamp cover 3, in the mounting portion, which is larger width only length locally, the present invention device 10
Are installed on the lower surface of the enlarged width portion. Then, the device 10 of the present invention includes the operating hydraulic cylinder 11
And a cylinder support link 12. Of these, the cylinder support link 12 is composed of a pair of rectangular elongated link plates 12 ₁ and 12 ₂ extending at a distance in parallel with the long side 3 ₃ of the lamp cover 3, link plates 12 _1, 12 1 end portion of the _2, deck 1 ₀ short side 3 ₁ the hinge 4 of the opening 2 drilled provided opposite short side 3 ₂
In the portion near the opening 2, the opening 2 is formed in the supporting member 13 provided by protruding appropriately on the peripheral wall of the opening ₂ in parallel with the short side 32.
Are attached to a pair of brackets 14 ₁ and 14 ₂ that are fixed in parallel to the long sides of the brackets and are rotatably attached via pins 15 ₁ and 15 ₂ , respectively. Also, these link plates 12 ₁ ,
An operating hydraulic cylinder 11 is arranged in parallel with the cylinder support link 12 in the space between the 12 ₂ and its cylinder end 11 ₁ is at the other end of the link plates 12 ₁ and 12 ₂ . via a pin 16 mounted turning freely, also, its piston rod end portion 11 _2, the lower surface of the lamp cover 3, the bracket 17 _1, 17 ₂ a pair of parallel fixed to the long side Pin 18
It is attached so that it can rotate freely.

In this case, the lamp cover 3, when in the state in which closes the opening 2 opened in deck 1 _0, as shown in FIG. 3, the cylinder support portion link 12 is in a substantially horizontal state,
The piston rod end portion 11 the pin 18 is pivotable attachment point to the _second lamp cover 3 of the actuating hydraulic cylinder 11, the pin 15 ₁ a pivotable attachment point to the deck 1 ₀ cylinder support links 12, together is above the 15 _2, the vertical center line of the former pin 18, the latter pin 15 _1, to 15 _second vertical center line, the short sides 3 ₁ deck 1 ₀ of the opening portion 2 of the lamp cover 3 Pin 4, which is a connecting point that can be swung to the corresponding short side (Fig. 1)
Are chosen to be closer, and there is a dimensional difference between their centerlines by a distance d.

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

First, the operating hydraulic cylinder 11 and the cylinder support link 12 are shown in the closed state of the lamp cover 3 by the solid line in FIG. 3, but in order to open the lamp cover 3 from this state, the operating hydraulic pressure is When the cylinder 11 is the piston rod end portion 11 ₂ is operated to extend, thereby actuating hydraulic cylinder 11 has its piston rod end portion 11 ₂
It pivots counterclockwise as seen in Fig. 3 around the pin 18 which is the pivotable connection point of the lamp cover 3 to the lamp cover 3, and at the same time, pivots via the pin 16 of its cylinder end 11 _1. also the cylinder support links 12 which are connected to, the deck 1 pin 15 ₁ a pivotable connection point to the _0, 15 to pivot in the same direction in _two around, in FIG. 3, by a two-dot chain line a as shown, the center of the pin 18 which is pivotable point of attachment to the piston rod end portion 11 ₂ of the lamp cover 3 of the actuating hydraulic cylinder 11, pivotable point of attachment to the deck 1 ₀ cylinder support link 12 Center of pins 15 ₁ and 15 ₂ and hydraulic cylinder 11 for operation
The cylinder end portion 11 ₁ of the cylinder 11 and the center of the pin 16 which is a pivotable connection point to the cylinder support link 12 are laid on the same line. Therefore, subsequently, by operating the actuating hydraulic cylinder 11 in the direction in which the piston rod end portion 11 ₂ is extended, the lamp cover 3, the cylinder end 11 ₁
But by being pivotally connected through a pin 16 to the other end portion of the cylinder support links 12 which are pivotally mounted via a pin 15 _1, 15 ₂ at one end portion to the deck 1 _0, piston the push rod end portion 11 ₂ lamp cover 3 attached pivotably by which the pivoted about the pin 4 is pivotable coupling point of the deck 1 ₀ (Fig. 1), the inclined state of the lamp cover 3 Can be

Conversely, this in order to the lamp cover 3 in the inclined state back to the original state, when actuating the actuating hydraulic cylinder 11 in the direction of contracting the piston rod end portion 11 _2, follows a previous course Conversely, actuating hydraulic cylinder 11 and the cylinder support links 12, a state shown by Figure 3 in two-dot chain line a, the lamp cover 3 is to close the opening portion 2 of the deck 1 _0, in this state, the actuating hydraulic cylinder 11 piston rod end 11 ₂
When it is further contracted, it is in a vertical state due to its own weight, as shown by the chain double-dashed line B in FIG. Therefore, the cylinder end portion 11 ₁ and the cylinder support link 12 rotatably connected thereto via the pin 16 are respectively
A vertical center line of the pin 18 which is pivotable point of attachment to the piston rod end portion 11 ₂ of the lamp cover 3, the cylinder support links 12
Deck 1 pin 15 ₁ a pivotable connection point to the _0, 15 ₂ and the vertical center line, since the displacement by a distance d, operating hydraulic cylinder 11, the cylinder support links 12 Cylinder support link 12 via pin 16 which is a pivotable connection point
The torque added to the pin 18 which is pivotable connection point between the lamp cover 3 of the piston rod end portion 11 ₂ as the center line, to pivot in a clockwise direction as viewed in FIG. 3, in FIG. The original state shown by the solid line is restored, and the operating hydraulic cylinder 11 itself is also returned to the state shown by the solid line in the figure.

EFFECTS OF THE INVENTION Since the present invention has the above-described configuration and operation, pillars and walls for supporting the hydraulic cylinder for actuation, which have been conventionally required, are not required, and therefore, the upper deck It is possible to easily move the vehicle, and the mounting position of the hydraulic cylinder for actuation can be arbitrarily selected, so that it is possible to easily reduce the capacity or the size thereof. Thus, an excellent effect that the internal space of the hull can be effectively utilized is exhibited.

[Brief description of drawings]

FIG. 1 is an enlarged longitudinal 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 its plan view,
FIG. 5 is a schematic view showing an example of a conventional lamp cover supporting means. 1 ₀ ... deck, 2 ... opening, 3 ... lamp cover, 10 ... device of the present invention, 11 ... hydraulic cylinder for operation, 12 ... cylinder support link.

Claims (3)

[Claims] 1. A lamp cover having a corresponding substantially rectangular plane contour for opening and closing a substantially rectangular opening which is opened on a deck in a ship such as an automobile transport ship, The inboard lamp cover, which is rotatably connected via a hinge to one of the opposing short sides of the pair of opposing short sides via a hinge, is pivoted about this hinge. In order to close the lamp cover, a link mechanism composed of an operating hydraulic cylinder and a cylinder support link is arranged in the longitudinal direction of the lamp cover at an intermediate portion of each of the opposing longitudinal sides of the lamp cover. In this state, the lamp cover of each actuating hydraulic cylinder is pivotally connected to the lamp cover in the direction opposite to the hinge, which is the pivotal connection point to the opening of the deck of the lamp cover, and the other end is In the same direction, one end is pivotally connected to the other end of each cylinder support link, which is appropriately pivotally connected to a part of the opening of the deck, in which case the cylinder support link is approximately horizontal. The pivotal connection point of the hydraulic cylinder for actuation arranged to the ramp cover is higher than the pivotal connection point of the cylinder support link to the opening of the deck, and the former vertical center line is The lamp cover opening / closing device is characterized in that it is closer to a pivotable connecting point of the lamp cover to the opening of the deck than the vertical center line. 2. The lamp cover opening / closing device according to claim 1, wherein the swingable connecting end portion of the operating hydraulic cylinder to the lamp cover is a piston rod end portion. 3. The cylinder support link is composed of a pair of spaced-apart parallelly arranged link plates, and the actuating hydraulic cylinders are arranged between the link plates. Lamp cover opening and closing device according to item 2.