JPH02397Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hatch cover opening/closing device.

Conventionally, a hatch cover provided for opening and closing a ship's hatch is composed of two panels, a first and a second panel, interconnected by an interhinge. In this type, the second panel is generally placed on each side edge of the guide rail installed on the top surface of the coaming. When the hatch is opened or closed, the hatch is placed on a storage base adjacent to the first panel at one longitudinal end of the hatch, and the first panel is located between. For example, by operating an opening/closing drive source consisting of a hydraulic cylinder, the storage position where both panels are folded vertically on the storage stand and the closed position where they are unfolded horizontally can be changed.
Each wheel of the second panel is guided on a guide rail so that it can be removed.

Conventionally, the opening edge material is usually high, so the opening drive source is installed within the height of the hatch edge material, and when the hatch cover is closed, the panel At the initial stage of release, first, check that the elastic cushioning seal material installed on the
The movement of the panel in the direction perpendicular to the guide rail required to release this sealed state is accomplished by movement of the pivot joint. however,
Depending on the type of ship, a low-height hatch edge material may be required, and for such ships, the conventional hatch cover opening/closing device as described above can be applied as is. I can't.

Therefore, the main purpose of this invention is to obtain a hatch cover opening/closing device suitable for cases where the hatch edge material is extremely low and it is impossible to install an opening/closing drive source within the height range. The purpose is to

To achieve this objective, the present invention provides first and second panels whose opposing edges are interconnected by interhinges, the second panel being connected at each side edge thereof near the other edge. wheels attached to the coaming are guided on rails attached to the coaming, and the first panel is pivotable to the hull near the other edge via first and second pivot points. The first panel can be pivoted via these first and second pivot joints by an opening/closing drive source attached to the hull, but when turning, the first panel must be It is characterized in that only the second pivot joint is effective, and then only the second pivot joint is effective.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. 1 to 3 of the accompanying drawings showing embodiments thereof.

First, FIG. 1 shows a hatch cover equipped with the device of the present invention in a plan view, and as shown in the same figure, the first and second two panels 1 and 2 are The edges of the first panel 1 are foldably connected by a pair of pivot members (interhinges) 3, and the other edges of the first panel 1 are aligned with the hull centerline X, as will be explained in detail later. - a pair of switching devices 10 according to the invention arranged symmetrically with respect to Each wheel 4 is connected to each guide rail 6 attached to each top surface (horizontal) of each coaming 5.
It has fallen into the notch ₆₃ and is unsupported (see Figure 2).

Next, FIG. 2 is a side view of FIG. 1,
In this Figure, the first and second panels 1 and 2 are shown by solid lines in the state shown in Figure 1 with the hatch closed. In this state, as shown in FIG.
This guide rail 6 is placed on top of the guide rail 6.
is a parallel portion 6 1 from the second panel 2 to a certain length of the first panel 1, followed by a diagonal portion 6 ₂ that rises toward the proximal edge of the first panel ₁ . It is formed.

On the other hand, on the proximal edge side of the first panel 1, there is a pair of opening/closing devices 10, as described above, and each device 10 is located at the proximal edge ₁₀ of the first panel 1 at the center of the hull. An arm member 11 consisting of a pair of substantially triangular plate-like members fixed parallel to the line XX and with a slight distance from each other; A pair of pivot members 12 are fixed to the hull so as to be parallel to each other and face each other with a slight gap between them, inside the plate member for support, and a triangular plate member. A hydraulic cylinder 13, which is an opening/closing driving source, has _a piston rod end pivotally connected to one corner farthest from the first panel 1 of an arm member 11, which is made up of A recess 14 is provided upright on the hull for pivotally connecting the cylinder end of the cylinder via a pivot joint ₁₃₂ .

Further, the arm member 11 and the pivot member 12 are arranged such that the horizontal 7 of the coaming 5 is attached to the triangular arm member 11.
A pin 11 ₁ is fixed to the lower corner portion below the level of the arm member 11 so as to protrude perpendicularly to the plane of the arm member 11 , and the pin 11 ₁ is supported by the pivot member 12 . A first pivot portion consisting of a pivot 12 ₁ with an open top, a triangular arm member 11 , a pin 11 ₁ and a piston rod end of the hydraulic cylinder 13 . A pin 11 2 is fixed substantially above the line connecting the pivot member 13 ₁ and protrudes perpendicularly to the plane of the arm member 11 at an approximately intermediate portion thereof, and a pin 11 ₂ is fixed to the pivot member 12 so as to protrude at right angles to the surface of the arm member 11 . a second pivot joint 1 consisting of a slot 12 ₂ drilled to receive this pin 11 ₂ ;
1 ₁ , 12 ₁ , 11 ₂ , and 12 ₂ .

In the closed state of the hatch, which is shown by the solid line in _FIG .
12 ₁ between the pin 11 ₁ of the arm member 11 and the pivot 12 1 of the pivot member ₁₂ and the pin 11 ₂ of the arm member 11 in the second pivot parts 11 _{2 and} 12 ₂
There is a gap between the hydraulic cylinder 13 and the slot ₁₂₂ of the pivot member 12.
, the rod is stored in the cylinder.

The present invention has such a configuration, and its operation will be explained next.

Now, when the panels 1 and 2 are to be changed from the hatch closed state shown by solid lines in FIG. When the pivot portion 13 ₁ of the arm member 11 fixed to the first panel 1 is moved from the position P ₁ to the position P ₂ , the first pivot portion of the arm member 11 fixed to the first panel 1 moves as shown by the broken line. The pin 11 ₁ is the pivot 1 of the pivot member 12.
2 ₁ as the pivot point P ₁ , and the pin 11 ₂ of the arm member 11 , which is the second pivot part, moves from position P ₁ to position P ₂ in the slot 12 ₂ of the pivot member 12 . It does not function effectively as a pivot joint.

Further, due to this rotation of the first panel 1, the second panel 2 also rotates around the interhinge 3 while its wheels 4 move on the guide rail 6, and in this case, the first pivot The line connecting the parts 11 ₁ , 12 ₁ , the interhinge 3 and the wheel 4 is longer than the line connecting the first pivot part 11 ₁ , 12 ₁ and the wheel 4, so the The panel elongation that occurs is absorbed, thus releasing the resilient damping seals (not shown) of panels 1, 2 from sealing engagement with the hull side projections (not shown);
This eliminates problems such as damage caused by the elastic cushioning seal material rubbing against the protrusions of the hull. In other words, there is a sufficient operating section for absorbing the so-called elongation of the panel. Note that after this state, the first pivot parts 11 ₁ and 12 1 of the arm member 11 and the pivot member ₁₂ become invalid.

When the hydraulic cylinder 13 continues to operate from this state, the second pivot parts 11 ₂ and 12 ₂ become effective between the arm member 11 and the pivot member 12, and the arm member 11 ₂ rotates using one end of the slot 12 ₂ of the pivot member 12 as a pivot point, and as shown by the two-dot chain line in FIG. ₁ reaches position P ₃ and the first panel 1 and the second panel 2
rotates around the interhinge 3 and is in a substantially vertical retracted state, and the wheels 4 of the second panel 2 reach the highest position of the diagonal portion 6 ₂ of the guide rail 6.

In this state, the first panel 1 and the second panel 2 are appropriately held in the recess 14 by the locking member 15 provided at the top of the recess 14.

The above describes the movement of each panel 1, 2 in the case of opening the hatch in the closed state. It is clear that in order to close the hatch as shown by the solid line, the procedure described above can be reversed. It is also clear that it is absorbed.

Next, FIG. 3 shows a second modification of the present invention.
In the embodiment shown in the figure, the slot 12 2 which is the second pivot portion 11 ₂ , 12 ₂ of the _pivot member 12 is
Pivot 12 1 _which is the first pivot joint 11 ₁ , 12 ₁
Similarly, the pivot ₁₂₃ is open at the top and formed from a straight section of a certain length and a bent section connected to it, but in other respects it is the same as the first embodiment. It's exactly the same. That is, in this embodiment, during the pivoting movement of the panels 1, 2, the second pivot points 11 ₂ , 12 ₃ are moved so that the pin 11 ₂ initially only moves along the straight section of the pivot 12 ₃ . However, the first pivot portion 11 ₁ , 1
When 2 ₁ becomes invalid, pin 11 ₂ becomes pivot 12
It becomes effective only when it is joined to the bent portion at the end of the straight portion of _{No. 3} .

It is clear that this embodiment operates in exactly the same way as the first embodiment.

Since the present invention has the above-described structure and operation, the present invention allows the opening/closing drive source to be placed near the hatch even if the opening/closing drive source is not available within the height range of the combing. It also eliminates problems caused by rubbing of the sealing material between the elastic cushioning sealant provided on the panel and the protrusion on the hull side, which is required at the beginning of opening and final closing of the hatch cover. By dividing the pivot joint into the first and second pivot joints, the motion for absorbing the elongation of the panel can be reliably performed by the first pivot joint. , further comprising: a first pivot portion pivotally connecting the first panel to the pivot member at the beginning of opening and at the end of closing of the hatch cover; an interhinge connecting the first and second panels; The line connecting the two panels to the wheels supporting them on the guide rails is approximately straight, so that the driving force of the opening drive source to the arm member can be applied to the arm member at the time when it is most needed. The lever between the lever and the pivot point can be made larger, and therefore the panel can be powerfully opened and closed even with a small driving force.

Now, the effects of the present invention described above will be specifically explained in comparison with the conventional ones as follows.

As shown in FIG. 4, for example, in the conventional folding type hatch covers 1 and 2, which are a set of two, a hydraulic cylinder 50, which is the drive source, is attached to the hatch cover 1. It is generally installed between the fixed arm member 11 and the deck 51, and during operation, the arm member 11 is pushed upward by the hydraulic cylinder 50.

However, if the height of the hatch coaming 5 is extremely low, there is no space to install the hydraulic cylinder 50, resulting in the problems mentioned in the introduction. In order to solve this problem, in the present invention, as shown in FIG.
The recess 14 provided above and the arm member 11 are configured so that the arm member 11 is pushed downward by the hydraulic cylinder 13 at the pivot joints 13 ₁ and 13 ₂ respectively, during installation and operation.

In the case of a folding type hatch cover, the pivot point between the arm member 11 and the deck 51, as shown in FIG. 60 and the line connecting the center 61 of the interhinge 3, which is the pivot point between the hatch covers 1 and 2, and the center point 62 of the wheel 4 of the hatch cover 2, a ₁
is larger than that a in the final closed state. For this purpose, for example, if two sets of two hatch covers are installed adjacently and each set is folded and stored in its respective storage position located at the opposite end, e.g. The hatch of the group
When retracting the covers 1, 2, there is a risk that the adjacent hatch covers of another set in the closed position will be crushed by the hatch covers 1, 2 which are about to be folded into the retracted position.

In the present invention, this fear is solved by changing the pivot point between the arm member 11 and the deck to the pivot point between the hatch covers 1 and 2 at the initial stage of opening and the final stage of closing. By placing it at a position P ₁ 11 ₁ , 12 ₁ lower than the center of the inter-hinge 3 and moving this pivot point to another position P ₂ 11 ₂ , 12 ₂ from the middle of opening and closing (see Figure 2). , the above three pivot points 60,
Since the distance connecting 61 and 62 can be prevented from being larger than that in the final storage position, the problem of the hatch cover being crushed can also be solved.

[Brief explanation of the drawing]

FIG. 1 shows a hatch equipped with an embodiment of the present invention.
FIG. 2 is a plan view of the cover, FIG. 2 is a side view thereof, FIG. 3 is a side view showing a modification of the present invention, and FIG. 4 is a schematic diagram for specifically explaining the effects of the present invention. 1, 2...Panel, 10...Switching device, 11...
... Arm member, 11 ₁ , 11 ₂ ... Pin, 12 ... Pivot member, 12 ₁ , 12 ₃ ... Pivot, 12 ₂ ... Slot, 14 ... Recess, 15 ... Locking member.

Claims (1)

[Claims for Utility Model Registration] 1. Comprising a first and a second panel 1, 2 which are pivotally connected to each other at opposite edges, the second panel 2 being attached to each side edge near the other edge. Each coaming 5 is connected via a rotatably mounted wheel 4.
The first panel 1 is adapted to be guided on each guide rail 6 attached to the horizontal 7 of the ship, and the first panel 1 has a switchgear 10 attached to the hull at the base end ₁₀ , which is the other edge. In the hatch cover, the opening/closing device 10 is attached at the proximal end ₁₀ of the first panel 1 to the center line
A pair of arm members 11 made of substantially triangular plate members fixed parallel to X, and each arm member 1
A pair of plate-shaped pivot members 12 fixed on the hull for rotatably supporting each
and one pivot portion 13 at one corner of the triangular arm member 11 that is farthest from the first panel 1.
an opening/closing drive source 13 pivotally connected via ₁ ;
A recess 1 provided upright on the hull supporting another pivot point 13 ₂ of the opening drive source 13
4, and each arm member 11 and each pivot member 12 are arranged at right angles to the surface of the coaming 5 of the triangular arm member 11 at a corner located below the surface of the horizontal 7. A first pivot portion 11 ₁ , 12 is composed of a pin 11 1 fixed to project and a pivot 12 ₁ formed to support the pin 11 ₁ on the pivot member _{12 . 1} , the first pivot parts 11 ₁ , 12 ₁ , and the pivot part 13 ₁ of the opening/closing drive source 13 with the first panel 1, and the arm is placed approximately in the middle thereof. A pin 11 ₂ is fixed to the member 11 so as to protrude at right angles to the surface of the member 11, and this pin 11 ₂ is attached to the pivot member 12.
The second pivot portion 11 ₂ , 12 ₂ is composed of a pivot 12 2 formed to be pivotally supported _.
Two pivot parts 11 ₁ , 12 ₁ , 11 ₂ , 12 ₂ with
are interconnected through the
When each panel 1, 2 pivots from the hatch-closed state to the open state, the opening/closing drive source 13 operates to first rotate the first pivot portion 11 ₁ ,
12 ₁ only through the first and second panels 1, 2
Rotate away from the horizontal 7,
Next, the hatch cover opening/closing device allows the first and second panels 1, 2 to be rotated into the retracted state only via the second pivot portions 11 ₂ , 12 ₂ . 2. The first pivot parts 11 ₁ , 12 ₁ provided on the arm member 11 and the pivot member 12 connect the pin 11 ₁ fixed to the arm member 11 at right angles, and the pin 11 ₁ to the pivot member 12. A hatch cover opening/closing device according to claim 1, comprising a pivot ₁₂₁ which is formed to cooperate with an open upper part. 3. The second pivot portion 12 ₂ provided on the arm member 11 and the pivot member 12 is configured such that the pin 11 ₂ is fixed to the arm member 11 at right angles, and the pivot member 12 receives this pin 11 ₂ . A hatch cover opening/closing device according to claim 1 or 2, comprising a slot ₁₂₂ formed therein. 4. The second pivot portion 12 ₂ provided on the arm member 11 and the pivot member 12 has a pin 11 ₂ fixed to the arm member 11 at right angles, and the pivot member 12 receives the pin 11 ₂ . The utility model registration claim 1 consists of a pivot ₁₂₃ that is formed and is open upward, and that this pivot ₁₂₃ consists of a substantially straight portion and a bent portion connected thereto. Or the hatch cover opening/closing device described in item 2. 5 The opening/closing driving source 13 is a hydraulic cylinder, and the cylinder end is pivotally connected to a recess 14 fixed to the hull via a pivot joint 13 ₂ , and the piston rod end is connected to the arm member 11 through a pivot joint 13 ₁ . Utility model registration claims 1-
The hatch cover opening/closing device according to any one of Item 4. 6. The hatch cover opening/closing device according to any one of claims 1 to 5, wherein the recess 14 is provided with a locking member 15 for locking the panels 1 and 2 in the retracted state.