JPS62194990A - Side rolling type hatch cover opening/closing device - Google Patents

Abstract

PURPOSE:To reduce the number of parts by installing a cleat arm onto the ship side part of a hatch cover and a wedge for cleat arm onto a hatch coaming and carrying out the pushing-up and lowering, and tightening and release operations in a series of operations. CONSTITUTION:Traveling rollers 2 and 2a travels a hatch cover 1, and a hook lever 4 raises and lowers and tightens and releases the hatch cover 1 through the rollers. The top edge part of the lever 4 is formed into a recessed form for fitting and demounting the rollers, and the top edge of a hydraulic cylinder 5 for driving the lever 4 is connected to the other edge part of the lever 4, and the other edge of the cylinder 5 is connected to a hatch coaming. Therefore, when the cylinder 5 is extended, the lever 4 is pushed up along a guide 6, and also the roller 2 is shifted along the guide 6. and the elevation of the hatch cover, shift to the ship side, and release can be carried out at a same time.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a side rolling type hatch cover that can perform a series of operations of lowering and tightening or releasing and pushing up a side rolling type hatch cover simultaneously using two mechanisms. This invention relates to a hatch cover opening/closing device.

[Conventional technology]

Conventional devices of this type include those shown in FIGS. 4 to 8.

In the side rolling type hatch cover opening/closing device shown in the perspective view of FIG. 4, in order to open and close the hatch cover 1 when loading and unloading cargo on the ship's side, the hatch cover 1 and the top of the hatch coaming are Three elements are provided independently: a tightening device #B for tightening and a traveling device C for traveling the hatch cover l.

As shown in the detailed drawings of Figs. 5 to 7, the elevating device A has a lifting device A2 which is pushed up by eight sets of hydraulic jack cylinders A1 per hatch, and a guide A3 whose both ends are provided on the sides of the hatch coaming 3. The hatch cover 1 is raised and lowered as a guide plate, and the hatch cover 1 is raised and lowered via a running roller 2.2ae attached to the side surface of the hatch cover 1 above the guide plate.

As shown in the detailed view of Fig. 8, the tightening device B rotates the hook B2 pivoted on the side of the hatch coaming 3 by means of 16 sets of hydraulically driven unlinders Bl per hatch, and engages it in the hanger B3 with the notebook cover. By removing it, the hatch cover 1 is released.

Further, the hatch cover 1 is made to run by winding or unwinding the cable C2 whose one end is tightly attached to the neck cover 1 by the traveling device Cil't and the drive winch C1.

[Problem that the invention seeks to solve]

In such a conventional side rolling type notch force bar opening/closing device, a lifting device A is used.

Tightening device B has a complicated mechanism and has many parts.

It is expensive, and furthermore, adjustment is difficult and maintenance and inspection are complicated.

Moreover, it has a large number of hydraulically driven cylinders.

The hydraulic pipe system is long and complicated, and sacrificial work during construction takes a lot of time.

In addition, even after entering service, the large number of parts and long piping make the system susceptible to damage, and furthermore, maintenance and inspection are complicated.

The above problem concerns lifting device A and tightening device B.

This is due to the fact that each device is arranged and driven as a separate device.

The present invention incorporates the above-mentioned conventional device's lifting and lowering and tightening and releasing operations into a series.

By making it possible to use a hydraulic cylinder as a driving device, it is possible to solve the conventional problems. The purpose of the present invention is to provide a side rolling type hatch cover opening/closing device.

[Means for solving problems]

For this reason, (1) the side rolling type hatch cover opening/closing device of the present invention is provided on the knot cover mink, and includes a hook lever and a guide for engaging and disengaging the traveling roller on the center side of the hull; and drive means for driving the hook lever.

A pair of wet mechanism f provided to engage with the side surface of the hatch coaming and the side surface of the nose cover, a guide rail that lowers the running roller on the ship side when the nose cover is closed, and
The cleat arm provided on the side of the tsuchi cover and the cleat arm wedge provided on the hatch coaming and engaged with the cleat arm make it possible to simultaneously lower and tighten the noch cover or release and push it up. It is said that

[For production]

In the above-mentioned side rolling type hatch cover opening/closing device of the present invention, each operation of raising/lowering, tightening, and releasing the hatch cover, which was conventionally operated by dispersed drive sources, is operated by a common drive device. This reduces the number of parts, significantly reducing costs, simplifying sweeping, and facilitating maintenance and inspection.

〔Example〕

Embodiments of the present invention will be described below with reference to nine drawings.
Figures 1 to 3 show a side rolling type hatch cover opening/closing device as an embodiment of the present invention, and Figure 1 shows the state when the hatch cover has been tightened in the overall layout viewed from the front and rear directions of the hull. FIG. 2 shows the state shown in FIG. 1 when the pushing up is completed, and FIG. 3 shows another example of the driving means.

IH hatch covers 2 and 2ald are running rollers for running the hatch covers, two sets each of which are arranged on the front and rear sides of the hatch covers, and 3 is a hatch combing. 4 is a hook lever for lifting, tightening, and releasing the hatch cover via a running roller.

The tip of the hook lever has a concave shape so that the running roller can be inserted into and removed from the hook lever. 5ba.

A hydraulic cylinder serves as a driving means for driving the hook lever, and the tip thereof is connected to the other end of the hook lever, and the two hydraulic cylinders are connected to the other ends of the hatch coaming.

6 is a guide for diagonally moving the hook lever up and down. 9 is a cleat arm for tightening the side part of the hatch cover, and a wedge for the 10-piece cleat arm. Reference numeral 11 designates a guide rail having an inclination for raising and lowering the side part of the hatch cover in accordance with the raising and lowering of the hook lever, and 7 a wedge cleat for tightening the central part of the hatch cover.

To explain the specific operation, in FIG. 1, the hatch cover 1 is closed and the hydraulic cylinder 5 is in a contracted position.

When the hydraulic cylinder 5 is extended from the closed state shown in FIG. 1, the hook lever 4 is pushed up along the guide 6. Along with this, the traveling roller 2 also moves along the guide 6, so that the hatch cover is raised, moved toward the ship, and released at the same time. Furthermore, the running roller 2a also moves along the guide rail 11 at the same time, and the tightening mechanism (wedge cleat 7) provided at the center of the front and rear sides of the hatch cover is engaged. In this way, the running rollers 2 and 2aH running rails 8 are pushed up to the upper surface position, resulting in the state shown in FIG.

The hatch cover has now been released and raised, and the hatch cover is now ready to drive.

If the hatch cover drive device C shown in FIG. 4 is driven,
The hatch cover can be opened.

On the other hand, when the hatch cover 1 is lowered and tightened, the hatch cover 1 is moved to the above-mentioned hatch cover closed position.

When the hydraulic cylinder 5 is contracted at this position, tightening is automatically performed by the reverse operation to that described above.

Note that the hydraulic cylinders 5, 5 provided on the left and right hatch covers, respectively, are connected to a common 11 as shown in FIG. 3a.
MI hydraulic cylinder 5a, this hydraulic cylinder 5
A common hydraulic cylinder 5b may be provided at each end of the hook lever for the left and right notch covers.

In this case, the above connection play) 12H3 bins (bin 12a connected to the hatch combing).

Bin 12b connected to hydraulic cylinder 5J: Bin 12C1 connected to hook lever 4;
The hole for C is an elongated hole), and serves to transmit the movement of the hydraulic cylinder 5a to the hook lever 4 using the bin 12a as a fulcrum.

Further, the hydraulic cylinder 5.5: a, 5 b Id
It can also be used as an air cylinder.

〔Effect of the invention〕

As described in detail above, according to the side rolling type hatch cover opening/closing device of the present invention, the hatch cover can be raised, lowered and tightened using a hydraulic cylinder as a single driving means. 8 for tightening and 16 for release.

The number of hydraulic cylinders, which used to be 24 in total, can be significantly reduced, and related structures are also simplified.

The number of hardware parts and hydraulic pipes can be reduced, which has the advantage of significantly reducing costs, simplifying operation, and facilitating maintenance and inspection.

[Brief explanation of drawings]

1 to 3 are diagrams showing a side rolling type hatch cover opening/closing device as an embodiment of the present invention, in which FIG. 1 shows the state when tightening is completed, other examples of the small movement means, and FIG. 4 to 8 are diagrams showing a conventional side rolling type hatch cover opening/closing device, in which FIG. 4 is an overall view, and FIG.
The figure is a detailed side view of part A in Figure 4, Figure 6 is a view corresponding to Figure 5 when tightening the hatch cover, Figure 7 is a view from arrows ■ to ■ in Figure 5, and Figure 8 is a view corresponding to Figure 5. FIG. 4 is a detailed side view of part B in FIG. 4; 1-hatch cover, 2.2a... running roller. 3...hatch combing, 4...hook lever. 5, '5a, 5b... Hydraulic cylinder, 6... Guide. 7...1 wedge cleat, 8...travel rail. 9... Cleat arm, 10... Wedge for cleat arm, 11... Guide rail, 12
...Connection plate, 12a, 12b, 12c
=-bin.

Claims (1)

[Claims] A side rolling type hatch cover opening/closing device includes a hook lever and a guide provided on the hatch coaming and for engaging and disengaging the traveling roller on the center side of the hull, a driving means for driving the hook lever, a side surface of the hatch coaming and a side surface of the hatch cover. A pair of wedge cleats are provided to engage with each other, a guide rail is configured to lower the running rollers on the ship's side when the hatch cover is closed, and a cleat arm provided on the side of the hatch cover and on the hatch coaming. A side-rolling type hatch cover opening/closing device, characterized in that a cleat arm wedge is provided and engages with the crate arm, thereby making it possible to simultaneously lower and tighten the hatch cover or release and push it up.