JPH0326076Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a dust-proof mechanism for hatch combing for transporting ore, coal, etc.

(Prior art) On carrier ships that carry ore, coal, etc. in bulk in their holds, particles of ore or coal during cargo handling may spill onto the hatch coaming that forms the opening of the hold, staining the deck or causing hatch coaming. This may impair the seal between the combing and the hatch cover.
Therefore, during cargo handling operations, it is necessary to cover the area around the opening in the hold with a sheet, etc., or to thoroughly clean the top of the hatch coaming before closing the hatch cover after cargo handling. The work is troublesome.

On the other hand, a dustproof mechanism is known in which a sheet 21 is attached to the tip of a double-opening hatch cover 1, as shown in FIGS. 5 and 6. sheet 21
When the hatch cover 1 is closed, they are suspended in the hold 5 facing each other by the weights 22 at the tip as shown in Fig. 5, but when the hatch cover 1 slides to the rear of the hatch coaming 2 as shown in Fig. 6, When the hold 5 is opened, this sheet 21 covers the hatch coaming 2 and protects the hatch coaming 2 from powder particles of ore and coal that spill out during cargo handling.

(Problems to be Solved by the Invention) By the way, this hatch cover 1 is provided with a packing 23 and a tightening bar 3 facing each other as shown in FIG. Also, a water gutter 4 for draining rainwater or seawater dripping from the upper end of the hatch cover 1 to the side of the hatch combing 2 is provided at the tip 1A. However, since these members are all exposed above the sheet 21 when the hatch cover 1 is opened, powder particles spilled during cargo handling tend to adhere to them, and the adhering powder particles mix into the drainage water of the water gutter 4 and contaminate the deck. Or, when the hatch cover 1 is closed, it may get caught between the seal 23 and the tightening bar 3, causing damage to the seal 23. To avoid such inconvenience, sheet 2
1 to the upper part of the tip 1A to protect these members integrally with the hatch combing 2, but then the sheet 21 will interfere with the seal 23 and the tightening bar 3 when the hatch cover 1 is closed.

In view of the above problems, it is an object of the present invention to provide a hatch combing dustproof device that can cover necessary areas more effectively.

(Means for Solving the Problems) The present invention provides a hatch coaming formed in the transverse direction for fixing the front end or rear end of a sliding type hatch cover, and the side surface of the upper part of the hatch coaming facing the direction in which the hatch cover is closed. The proximal ends of the leaf springs bent in the opposite direction into a dogleg shape are locked, these leaf springs are arranged at appropriate intervals along the hatch coaming, and the dust-proof sheet is supported by these leaf springs. The closed hatch cover holds these leaf springs in a state in which they are elastically deformed toward the front or below the hatch cover.

(Function) When the hatch cover is opened, the leaf spring that has been elastically deformed in front of or below the hatch cover returns to its original shape and expands above the hatch coaming, and the dustproof sheet supported by the leaf spring covers the top of the hatch coaming. Further, when the hatch cover is closed, the leaf spring is pressed by the hatch cover and elastically deforms forward or downward again.

(Example) A first example of the present invention is shown in FIGS. 1 to 3.
In Fig. 1, 1 is a double-opening hatch cover;
2 is a hatch coaming provided on the proximal end side of the hatch cover 1.

The hatch cover 1 includes a tightening bar 3 and a water gutter 4 at its distal end 1A, and a gasket 15 at its base end 1B. The hatch cover 1 has a tightening bar 3 crimped to a patch attached to an opposing hatch cover (not shown), and a patch 15 protruding from the hatch coaming 2.
6 to close the boat hold 5 watertightly, while retreating to the rear of the hatch coaming 2 to open the boat hold 5.

At the top of the side surface 2A of the hatch coaming 2 facing the closing direction of the hatch cover 1, that is, toward the hold 5,
The base end portion of the leaf spring 6, which is bent into a substantially dogleg shape toward the opening direction of the hatch cover 1, is locked. The leaf springs 6 have an arcuate cross section as shown in FIG. 2, and a length that reaches the upper end of the hatch cover 1 in an upright state, and are arranged at appropriate intervals along the side surface 2A. A dustproof sheet 7 is attached to these leaf springs 6 via bolts 8 and nuts 9, and a protector 10 as shown in FIG. 3 is attached to the inside of the dustproof sheet 7 at the curved portion of the leaf spring 6. In addition, a sliding member 11 made of resin is provided at the tip of each leaf spring 6.
to fix. When the hatch cover 1 is closed, the leaf spring 6 and the dustproof sheet 7 are elastically deformed downward as the sliding member 11 is pressed against the bottom surface 1C, as shown by the dashed line in FIG. Retained.

Next, the action will be explained.

When the hatch cover 1 is opened, the bottom surface 1C is a plate spring 6.
The leaf spring 6 slides on the sliding member 11 while being deformed, but when the entire hatch cover 1 reaches the rear of the hatch coaming 2, the leaf spring 6 stands up due to its own repulsive force and forms an oval shape as shown by the solid line in the figure. restore to its original form. As a result, the side surface 2A of the hatch combing 2
The area from the upper end to the upper end of the tip 1A of the hatch cover 1 is covered with a dustproof sheet 7 that is engaged with a leaf spring 6. In other words, not only the upper surface 2B of the hatch combing 2 but also the tightening bar 3 and the water gutter 4 are covered with the dustproof sheet 7, so that powder particles spilled to the side during cargo handling are prevented from accumulating on these members. It falls into the hold 5 along the sheet 7. Furthermore, since the curved portion of the dustproof sheet 7 that is likely to be hit by the wire rope of the bucket used for cargo handling is protected by the protector 10, there is little risk that the dustproof sheet 7 will be damaged. In addition, the hatch cover 1 presses the leaf spring 6 that was upright during the closing movement and deforms downward again, and the bottom surface 1C is moved to the sliding member 11.
reach the closed position while sliding against the

FIG. 4 shows a second embodiment in which the present invention is applied to the hatch combing 2 on the tip side when the hatch cover 1 is composed of one panel or a plurality of panels connected together. In this case, the spring 6 is bent in a dogleg shape toward the inside of the hold 5, its base end is locked to the outer side surface 2C of the hatch coaming 2, and the tip end 6A is bent outward in an arc shape. I'll let you. The dustproof sheet 7 is attached to these leaf springs 6 arranged along the side surface 2C, but the upper end 7
Instead of A being locked to the tip 6A of the leaf spring 6,
It is supported by a guide 12 attached to the back side.
The guide 12 is curved in the opposite direction to the tip 6A and attached at a slightly lower position than the tip 6A.

When the hatch cover 1 is closed, the leaf spring 6 is pressed by the tip 1A of the hatch cover 1 and deforms, as shown by the dashed line in the figure, and stands up in front of the hatch cover 1, but when the hatch cover 1 opens,
When the tip 1A retreats from the hatch coaming 2, it returns to the solid line position in the figure, and the dustproof sheet 7 attached to the leaf spring 6 covers the hatch coaming 2. At this time, since the upper end portion 7A hangs down inside the hold 5 along the guide 12, the upper surface 2 of the hatch coaming 2
A is completely covered by the dustproof sheet 7. Also,
Since the tip end 6A of the leaf spring 6 protrudes inward from the guide 12, there is no fear that the wire rope will hit the dustproof sheet 7 during cargo handling work. When the hatch cover 1 slides in the closing direction, the leaf spring 6 is pressed by the tip 1A and deforms forward again.

(Effects of the invention) As described above, the present invention supports a dustproof sheet with a substantially dogleg-shaped leaf spring whose base end is locked to a hatch coaming, and supports this leaf spring forward or downward with a closed hatch cover. When the hatch cover is opened, the deformed leaf spring returns to its original state and expands along with the dustproof sheet above the hatch coaming.
For this reason, the hatch combing on both the proximal and distal sides of the hatch cover is automatically covered with a dustproof sheet when the hatch cover is opened, and the tightening bar, gasket, water comb, etc. provided at the tip of the hatch cover are also integrated. Can be covered and protected. Therefore, it is possible to effectively install a dustproof device around the opening of the hold, which is necessary during cargo handling work, without requiring any effort.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts of a hatch combing showing the first embodiment of the present invention, and Fig. 2 is a sectional view taken along line A-A in Fig. 1.
3 is a view taken along the line B--B, and FIG. 4 is a sectional view of a main part of the hatch combing according to the second embodiment. Further, FIG. 5 is a sectional view of a main part of a conventional double-opening type hatch cover, and FIG. 6 is a sectional view of a main part of a hatch coaming. 1...hatch cover, 2...hatch combing, 6...leaf spring, 7...dustproof sheet.

Claims (1)

[Scope of utility model registration request] In the hatch coaming formed in the transverse direction for fixing the tip or rear end of a sliding type hatch cover, a leaf spring bent in the opposite direction in a substantially V-shape is attached to the side of the top of the hatch coaming facing the direction in which the hatch cover is closed. The proximal end is locked, and these leaf springs are arranged at appropriate intervals along the hatch coaming, and the dust-proof sheet is supported by these leaf springs. A hatch combing dustproof device characterized by being held in a state in which it is elastically deformed or downward.