JPH0616193U - Frozen ship hatch cover - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a hatch cover in a barge of a refrigerating ship which has a simple structure and is easy to mount. [Structure] In a freezer boat having a multi-layer deck, each hatch opening 8, 9, 10 is shortened by the thickness dimension of the hatch covers 5, 6, 7 in the front-rear direction toward the lower stage, and the hatch opening 8, Hatch covers 5 and 9 for each stage to attach two panels, which are rotatably held on both sides of 9, 10 as a set.
6 and 7 and hydraulic pressure that rotatably holds the bases on the middle decks 2 and 3 near both sides of the hatch openings 6 and 7 in the barb and also rotatably connects the piston rod tip to the base of the panel upper surface. Cylinders 12 and 13 and stoppers 14 projecting at four corners of each panel around the hatch openings 8, 9 and 10.
And the reciprocating movements of the hydraulic cylinders 11, 12, and 13 raise and lower the two panels on both sides of the hatch openings 8, 9, and 10 to open and close the hatch openings 8, 9, and 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hatch cover mounted on each deck in a cargo hold of a refrigerating ship having a plurality of decks, and more particularly to opening / closing of the hatch covers.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, as shown in FIG. 2, a device of this type conventionally holds one end of a half-folded hatch cover 25 on a hatch coaming 24 on the upper deck 21 and operates a hydraulic cylinder 30 to move it to the other side. Running rollers 28 are attached to both sides so that they can be extended and folded and stored on one side, and running rails 29 are laid on the hatch coaming 24. Similarly, the middle deck 22 also has a half-folded hatch cover. Equipped with 26 sets so that two sets can be expanded to the center and folded and stored before and after the hatch opening, and the middle deck 23 is also equipped with two sets of half-folded hatch covers 27 that can be expanded and stored. Things are known.

[0003]

[Problems to be solved by the device]

 As described in the prior art, it is necessary to equip a traveling roller, a traveling rail, a cradle, and the like to extend and store the panel of the hatch cover divided into a plurality of parts in the center of the hatch opening and in the front and rear, and the hatch is installed. The structure of the cover becomes complicated, and in order for the hatch cover to travel smoothly, it is necessary to accurately arrange the traveling rollers and the traveling rails, and it takes time to install the hatch cover. I was there.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a hatch in a cargo hold of a refrigerating ship which has a simple structure and is easy to install. It is intended to provide a cover.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is directed to a case where the length in the front-rear direction is lowered by the thickness dimension of a hatch cover in a cargo hold of a refrigerating ship having a multi-layer deck. The hatch opening of each deck that is shortened sequentially, the hatch cover of each deck that attaches two panels that rotatably hold on both sides of the hatch opening in the front-rear direction, and both sides of the hatch opening in the cargo hold A hydraulic cylinder that rotatably holds the base on each nearby deck and rotatably connects the tip of the piston rod near the base of the top surface of the panel, and projecting at the four corners of each panel around the hatch opening. It is composed of a stopper that opens and closes the hatch opening by raising and lowering two panels on both sides of the hatch opening by reciprocating movement of the piston rod of the hydraulic cylinder.

[0006]

[Action]

 The hatch opening of each deck, which is made shorter by the thickness dimension of the hatch cover in order toward the bottom, has the upper edge of the panel within the hatch opening of the upper deck when the hatch cover panel is erected, and the upper edge of the panel is located at the upper deck. It will be placed so as not to abut.

A hydraulic cylinder that is rotatably connected to each deck on both sides of the hatch opening in the cargo hold and near the base of the panel upper surface is used to raise and lower the two panels of the hatch cover before and after the hatch opening. , Open and close the hatch opening.

[0008]

【Example】

 The embodiment will be described with reference to the drawings. As shown in FIG. 1, in the cargo hold of a refrigerating ship, the hatch openings 8, 9, 10 of each deck are divided by the thickness dimension of the hatch covers 5, 6, 7. The length in the front-rear direction is gradually reduced toward the bottom.

The hatch cover 5 installed on the hatch coaming 4 on the upper deck 1 is mounted on the upper deck 1 as a set of two panels which are rotatably held on both sides of the hatch opening 8 in the front-rear direction. The upright hydraulic cylinder 11 presses the vicinity of the base of the hatch cover 5 to raise and lower the two panels on both sides of the hatch opening 8 to open and close the hatch opening 8.

The hatch covers 6 and 7 in the cargo hold are attached to the hatch openings 9 and 10 in the cargo hold as two pairs of panels that are rotatably held on both sides in the front-rear direction. The hydraulic cylinders 12 and 13 are attached to the middle decks 2 and 3 near both sides while rotatably holding the bases, and the tips of the piston rods of the hydraulic cylinders 12 and 13 are rotatably connected near the base of the panel upper surface. By reciprocating the piston rods of the hydraulic cylinders 12 and 13, the two panels on both sides of the hatch openings 9 and 10 are tilted to open and close the hatch openings 9 and 10.

Stoppers 14 are provided at four corners of each panel around the hatch openings 8, 9 and 10.

[0012]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. Using the hydraulic cylinder to raise and lower the hatch cover panel on both sides of the hatch opening does not require the provision of running rollers, running rails, pedestals, etc., the structure of the hatch cover is simple, and strict mounting accuracy is required. The hatch cover can be installed easily without any need, and installation time can be saved.

[Brief description of drawings]

FIG. 1 is a schematic side view of an embodiment according to the present invention.

FIG. 2 is a schematic side view of a conventional hatch cover.

[Explanation of symbols]

 1 Upper Deck 2 Medium Deck 3 Medium Deck 4 Hatch Combing 5 Hatch Cover 6 Hatch Cover 7 Hatch Cover 8 Hatch Opening 9 Hatch Opening 10 Hatch Opening 11 Hydraulic Cylinder 12 Hydraulic Cylinder 13 Hydraulic Cylinder 14 Stopper

Claims (1)

[Scope of utility model registration request] 1. In the cargo hold of a refrigerating ship having a multi-layer deck, the cargo hold opening of each deck is shortened in order of the thickness of the hatch cover in the front-rear direction toward the lower tier so that the cargo hold inside Each stage of the hatch cover installed in the hatch opening is installed as a set of two panels that are rotatably held on both sides of the hatch opening in the front-rear direction, and each of the hatch covers in the cargo hold near both sides of the hatch opening. A hydraulic cylinder is rotatably held on the step deck and a hydraulic cylinder is attached, and the tip of the piston rod of the hydraulic cylinder is rotatably connected near the base of the panel upper surface to form four corners of each panel around the hatch opening. A hatch cover in a barge of a refrigerating ship, characterized in that a stopper is provided at a position, and two panels on both sides of the hatch opening are raised and lowered by the reciprocating movement of a piston rod of the hydraulic cylinder to open and close the hatch opening.