JP2008213747A - Hatch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple piggy back type hatch device by reducing the number of hydraulic cylinders or the like arranged around the periphery of a hatch. <P>SOLUTION: The hatch device is provided with a guide rail 8 fixed onto a hatch combing 2; a plurality of hatch covers having a wheel rolling on the guide rail 8; and a high-lifting device for lifting the hatch cover to a high position so as to be left from the hatch combing 2. The hatch device is provided with an attachment/detachment rail 9 capable of being removed from the hatch combing 2 by notching a part of the guide rail 8; and an opening 10 opened to a mounting position of the attachment/detachment rail 9 of the hatch combing 2. When the hatch is closed, the attachment/detachment rail 9 is removed from the hatch combing 2 and at least a part of the wheel is dropped-in to the opening 10, and when the hatch is released, the hatch cover is lifted by the high-lifting device and the wheel is pulled up from the opening 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ship hatch device, and more particularly to a piggy back type hatch device.

  A rolling hatch device is a hatch device that opens and closes a hatch by placing a hatch cover on a guide rail guide rail fixed to the hatch combing.

  However, when the hatch cover is overlaid on the guide rail, a gap is generated between the hatch cover and the hatch combing. Therefore, when closing the hatch, the hatch cover needs to be lowered from the guide rail. For this reason, the rolling hatch device includes a jack-up device and raises and lowers the hatch cover onto the guide rail (for example, Patent Document 1).

  Now, the piggyback type hatch device is a kind of rolling type, equipped with a high lift device, lift the hatch cover high away from the hatch combing, pull the other hatch cover horizontally below it and stack it up and down It is characterized by. In addition, the high lift device requires a lift stroke larger than the height (thickness) of the hatch cover (which is naturally larger than the lift stroke of the jackup device).

  FIG. 8 is a partial cross-sectional view of the piggyback hatch apparatus described in Patent Document 2. As shown in FIG. As shown in FIG. 8, a side combing 32 is erected on the side of a hatch opening (not shown) opened in the upper deck 31 of the ship, and a hatch cover 34 is placed on the combing top 33. 34a shows a state in which the hatch cover 4 is in close contact with the combing top 33 (closed position), and 34b shows that the hatch cover 4 is jacked up by the jack-up device 35 and runs in the front-rear direction (perpendicular to the drawing sheet). 34c shows a state (high lift position) in which the hatch cover 34 is lifted to a high position by the high lift device 36.

  A lifting arm 37 projects from the side surface of the hatch cover 34, and a movable arm member 39 that is driven by an actuator 38 and protrudes from the tip of the lifting arm 37 is provided inside the lifting arm 37.

  The high lift device 36 is a hydraulic jack that includes a cylinder 40 fixed to the upper deck 31 and a rod 41 that is supported by the cylinder 40 so as to freely move up and down, and is lifted and lowered by hydraulic pressure, between the rod 41 and the tip of the lifting arm 37. Are arranged with a predetermined gap therebetween.

  When the hatch cover 34 is lifted by the high lift device 36 to the high lift position 34c, the actuator 38 is driven to project the movable arm member 39 from the tip of the lifting arm 37 and the tip of the rod 41 of the high lift device 36 is movable. It is brought into contact with the arm member 39. On the other hand, when the hatch cover 34 is in the closed position 34a or the traveling position 34b, the movable arm member 39 is stored in the lifting arm 37, so that the hatch cover 34 and the high lift device 36 do not interfere with each other. Since it is comprised in this way, one hatch cover 34 can be lifted to the high lift position 34c by the high lift apparatus 36, and the other hatch cover 34 can be drawn in under it.

JP 7-117782 A JP 2005-178457 A

  The piggyback hatch device has a merit that the hatch cover storage space can be reduced and the hatch opening can be enlarged by stacking multiple hatch covers up and down, but it has a jack-up device and a high lift device. There is a problem that hydraulic piping and the like are congested around the hatch.

  Especially in a large ship, the weight of the hatch cover exceeds 100 tons, and the jack-up device and the high lift device require enough power to lift them, and the size of peripheral devices such as a hydraulic pump becomes large. Moreover, in order to stably support the hatch cover, four jack-up devices are required for each hatch cover, and usually two hatch covers are provided for one hatch, so that eight hatch covers are provided per hatch. A jack-up device is required. Similarly, eight high lift devices are required per hatch. Therefore, a total of 16 hydraulic cylinders and hydraulic piping are congested around the hatch, which causes an increase in cost for construction and maintenance.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a simple piggyback-type hatch device by reducing the number of hydraulic cylinders and the like congested around the hatch. It is.

  A first configuration of a hatch device according to the present invention includes a guide rail fixed on hatch combing, a plurality of hatch covers having wheels rolling on the guide rail, and the hatch cover separated from the hatch combing. In a hatch device including a high lift device that lifts to a high place, a detachable rail that is cut out from a part of the guide rail so that it can be removed from the hatch combing, and an opening that opens to the mounting position of the detachable rail of the hatch combing. When the hatch is closed, the detachable rail is removed from the hatch combing, at least a part of the wheel is dropped into the opening, and when the hatch is opened, the hatch cover is lifted by the high lift device, Configured to lift the wheel from the opening Characterized in that

  According to this configuration, the hatch cover can be moved from the traveling position to the closed position by the following procedure. (1) Drive the high lift device to lift the hatch cover. (2) Remove the detachable rail from the hatch combing. (3) Lower the high lift device and drop the wheel into a low place after removing the detachable rail. Further, when changing from the closed position to the traveling position, the reverse procedure is executed.

For this reason, since the up / down of the hatch cover to the guide rail, which has been conventionally performed by a dedicated jack-up device, is performed by the high lift device, the jack-up device is not necessary, and the hatch device can be simplified.

  According to a second configuration of the hatch device of the present invention, a guide rail fixed on the hatch combing, a plurality of hatch covers having wheels rolling on the guide rail, and the hatch cover separated from the hatch combing. In a hatch device including a high lift device that lifts to a high place, a part of the guide rail is cut out, a lift rail that is lifted with respect to the hatch combing, and an opening to the hatch combing, and the detachable rail is When the hatch is closed, the elevating rail is lowered below the hatch combing, and at least a part of the wheel is dropped into the opening and the hatch is opened by the high lift device. The cover is lifted and the wheel is configured to be lifted from the opening. It is characterized in.

This configuration can also simplify the hatch device by omitting the jack-up device. In addition, since a part of the guide rail can be moved up and down, it is not necessary to remove the part of the guide rail from the hatch combing when the hatch cover is set to the closed position, and the opening and closing work of the hatch cover can be saved.

  According to a third configuration of the hatch device of the present invention, a guide rail fixed on the hatch combing, a plurality of hatch covers having wheels rolling on the guide rail, and the hatch cover separated from the hatch combing. In a hatch device including a high lift device that lifts to a high place, a part of the guide rail is cut out so as to freely move up and down with respect to the hatch combing, and between the lift rail and the hatch combing A biasing means that is stretched over and biased in the direction of lifting the lifting rail, a regulation means that regulates the lowering of the lifting rail, and an opening that opens to the hatch combing and into which the detachable rail appears and disappears. When closing the hatch, the restriction means is released, and the weight of the hatch cover is transferred to the lifting rail. Ete lowers the wheel and the lifting rail, when opening the hatch, lift the hatch cover in the high lift device, characterized in that the wheel is configured to pull from the opening.

According to this configuration, the urging means is bridged between the elevating rail and the hatch combing so as to energize the elevating rail in the lifting direction, so that an actuator for elevating the elevating rail becomes unnecessary.

Further, although a solid spring is generally used as the biasing means, a spring device that utilizes the elasticity of the fluid may be used. Here, the restricting means is means for holding the elevating rail at the maximum height (the same height as the guide rail), and an appropriate means such as a pin, a key, or a clamp can be selected.

As described above, the hatch device according to the present invention does not require a jack-up device, so that the device can be simplified. In addition, since the outfit around the hatch device is simplified, access to hatch combing and the like is facilitated, and inspection and repair are facilitated.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is an explanatory diagram showing a configuration of a hatch apparatus according to a first embodiment of the present invention. As shown in FIG. 1, the hatch device 1 includes a hatch combing 2, a first hatch cover 3, a second hatch cover 4, and a high lift device 5. Further, the high lift device 5 abuts below the lifting arm 6 projecting laterally from the first hatch cover 3 and the second hatch cover 4 and lifts the first hatch cover 3 and the second hatch cover 4. A wheel 7 is pivotally supported on the side surfaces of the first hatch cover 3 and the second hatch cover 4, and the wheel 7 rolls on a guide rail 8 fixed on the hatch combing 2.

  The portion of the guide rail 8 that is below the wheel 7 when the first hatch cover 3 and the second hatch cover 4 are in a fixed position (hereinafter referred to as a detachable rail 9) And can be detached from the hatch combing 2 as required.

  FIG. 2 is a cross-sectional view showing the connection between the hatch combing 2 and the detachable rail 9. As shown in FIG. 2A, an opening 10 is provided in a portion where the detachable rail 9 of the hatch combing 2 is attached, and a void 11 is formed below the opening 10. A protrusion 12 is formed below the detachable rail 9.

  As shown in FIG. 2 (b), the detachable rail 9 is fixed to the hatch combing 2 by fitting the protrusion 12 into the opening 10. Further, pulling the detachable rail 9 upward can be easily detached from the hatch combing 2.

  FIG. 3 is an explanatory diagram of a procedure for raising and lowering the hatch cover between the traveling position and the closed position. Hereinafter, this procedure will be described with reference to FIG.

  (1) When the first hatch cover 3 is in the traveling position, the detachable rail 9 is attached to the hatch combing 2 and forms a part of the guide rail 8, so that the first hatch cover 3 moves over the guide rail 8. It can travel freely (FIG. 3 (a)).

  (2) Next, the high lift device 5 is raised, the first hatch cover 3 is lifted to a high place, and the wheel 7 is separated from the detachable rail 9 (FIG. 3B).

  (3) Here, the detachable rail 9 is pulled out from the hatch combing 2 and removed by the operator's hand.

  (4) After removing the detachable rail 9 from the hatch combing 2, when the high lift device 5 is lowered and the wheel 7 is dropped into the space 11, the first hatch cover 3 comes into close contact with the hatch combing 2 (FIG. 3 ( c)).

  Further, since the high lift device 5 is also arranged on the side of the fixed position of the second hatch cover 4, the second hatch cover 4 is also moved from the traveling position to the closed position in the same procedure as the first hatch cover 3 ( Descent). Further, when moving (raising) the first hatch cover 3 and the second hatch cover 4 from the closed position to the travel position, the reverse procedure is executed.

  As described above, the hatch device 1 omits the jack-up device because the high-lift device 5 jacks up and down the first hatch cover 3 and the second hatch cover 4 which has been conventionally performed by a dedicated jack-up device. can do.

  Needless to say, the high lift device 5 can also be used when the first hatch cover 3 and the second hatch cover 4 are stacked up and down. FIG. 4 is an explanatory diagram of a procedure for stacking the hatch covers up and down. Hereinafter, this procedure will be described with reference to FIG.

  (1) The first hatch cover 3 and the second hatch cover 4 are in the travel position (FIG. 4A).

  (2) Next, the first hatch cover 3 is lifted to a high place by the high lift device 5 and separated from the hatch combing 2 (FIG. 4B).

  (3) Next, the second hatch cover 4 is traversed and pulled down below the first hatch cover 3 (FIG. 4C).

  (4) Finally, the high lift device 5 is lowered and the first hatch cover 3 is placed on the second hatch cover 4 (FIG. 4D).

  FIG. 5 is an explanatory view showing a second embodiment of the present invention. In the first embodiment, the example in which the detachable rail 9 is removed from the hatch combing 2 is shown. However, in this embodiment, the detachable rail 9 is slid on the hatch combing 2. FIGS. 5A and 5B are a plan view and a side view showing a state in which the detachable rail 9 is mounted on the hatch combing 2 and aligned with the guide rail 8, and FIG. 5C is a detachable rail. It is a top view which shows the state which pulled out 9 to the horizontal direction and exposed the opening 10. FIG.

  When the detachable rail 9 is slid, the hatch cover (not shown) is lifted by a high lift device (not shown), and then the operator grasps the handle 13 and pulls it horizontally (downward in the figure). As shown in FIG. 5C, when the detachable rail 9 is pulled out in the lateral direction, the opening 10 of the hatch combing 2 is exposed, so that the wheel of the hatch cover can be dropped into the opening 10.

  Note that the detachable rail 9 may be pivotally supported on the hatch combing 2 so that it can freely turn horizontally on the hatch combing 2. In this case, the opening 10 can be exposed only by swinging the detachable rail 9 to the outside of the hatch combing 2.

FIG. 6 is an explanatory view showing a third embodiment of the present invention. In the first embodiment and the second embodiment, an example in which the detachable rail 9 is moved by an operator's hand has been shown. In this embodiment, instead of the detachable rail 9, a lifting rail supported by a spring is provided and the hatch is closed. In this example, the spring is pushed and shrunk by the weight of the hatch cover to lower the lift rail, and when the hatch is opened, the detachable lift rail is returned to the original height by the spring force.

As shown in FIG. 6A, a casing 15 that supports the lifting rail 14 so as to be lifted up and down is provided below the hatch combing 2, and a compression spring 16 is bridged between the casing 15 and the lifting rail 14, so that the lifting rail 14 Is lifted up. Further, a pin 17 is attached to the casing 15 to hold the elevating rail 14 in a raised position (a state where it is raised to the same height as the guide rail 8).

  Next, as shown in FIG. 6B, the hatch cover is lifted by a high lift device (not shown), and the pin 17 is pulled out.

  Next, as shown in FIG. 6C, when the hatch cover is lowered and the wheel 7 is placed on the lifting rail 14, the compression spring 16 is compressed by the weight of the hatch cover. The wheel 7 falls into the casing 15.

  To release the hatch, perform the reverse procedure of the above operation. That is, when the hatch cover is first lifted by the high lift device and the wheel 7 is moved out of the casing 15, the lifting rail 14 returns to the original position by the force of the compression spring 16, so the pin 17 is fixed to the casing 15. Then, the hatch cover is lowered again and the wheel 7 is placed on the lifting rail 14.

  FIG. 7 is a diagram showing a fourth embodiment of the present invention. In this embodiment, the elevating rail 14 is moved up and down by a small actuator. As shown in FIG. 7, the lifting rail 14 is lifted and lowered by an actuator 18. FIG. 7A shows a state in which the lifting rail 14 is raised, and a hatch cover (not shown) is placed at the traveling position. FIG. 7B shows a state in which the lifting rail 14 is lowered, that is, the hatch cover is closed. The case where it puts in the position is shown.

  The present embodiment is similar to the conventional hatch device in that the lifting rail 14 is lifted and lowered by an actuator 18, but the actuator 18 lifts and lowers only the lifting rail 14, and the first hatch cover 3 and the second hatch cover 4. It differs from the conventional hatch device in that it does not participate in lifting. In addition, the actuator 18 is sufficient if it has enough power to lift the weight of the elevating rail 14, and thus a smaller and simpler device is sufficient as compared with a conventional jackup device.

  Further, the power and type of the actuator 18 are not limited. Various types such as hydraulic drive, electric drive, pneumatic drive, feed screw, rack and pinion, pantograph mechanism, and those using wedge cams can be selected.

  The actuator 18 may not be fixedly installed on the hatch combing 2. If a portable actuator is installed as needed to raise and lower the elevating rail 14, the side surface of the hatch coaming 2 becomes clear and the hatch coaming 2 can be easily approached.

It is explanatory drawing which shows the structure and operation of the hatch apparatus which concern on 1st Example of this invention. It is sectional drawing which shows the engagement of a hatch combing and a detachable rail. It is explanatory drawing of the procedure which raises / lowers a hatch cover between a running position and a closed position. It is explanatory drawing of the procedure which piles up a hatch cover up and down. It is explanatory drawing of the attachment or detachment rail which shows the 2nd Example of this invention. It is explanatory drawing of the attachment or detachment rail which shows the 3rd Example of this invention. It is explanatory drawing of the attachment or detachment rail which shows the 4th Example of this invention. It is a partial cross-sectional view of a piggyback type hatch apparatus showing an example of the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hatch apparatus 2 Hatch combing 3 1st hatch cover 4 2nd hatch cover 5 High lift apparatus 6 Lifting arm 7 Wheel 8 Guide rail 9 Detachment rail 10 Opening 11 Space 12 Protrusion part 13 Handle 14 Lifting rail 15 Casing 16 Compression spring 17 Pin 18 actuator 31 upper deck 32 side combing 33 combing top 34 hatch cover 34a hatch cover 34b in the closed position hatch cover 34c in the traveling position hatch cover 35 in the high lift position 35 jack up device 36 high lift device 37 lifting arm 38 actuator 39 movable arm Member 40 Cylinder 41 Rod

Claims (3)

A guide rail fixed on the hatch combing;
A plurality of hatch covers having wheels rolling on the guide rail;
In a hatch device comprising a high lift device that lifts the hatch cover away from the hatch combing to a high place,
A detachable rail cut out from a part of the guide rail so that it can be removed from the hatch combing,
With an opening that opens to the mounting position of the detachable rail of the hatch combing,
When closing the hatch, remove the detachable rail from the hatch combing, drop at least a part of the wheel into the opening,
A hatching device characterized in that when the hatch is opened, the hatch cover is lifted by the high lift device and the wheel is lifted from the opening. A guide rail fixed on the hatch combing;
A plurality of hatch covers having wheels rolling on the guide rail;
In a hatch device comprising a high lift device that lifts the hatch cover away from the hatch combing to a high place,
A lifting rail that cuts out a part of the guide rail and moves up and down with respect to the hatch combing;
Opening to the hatch combing, and having an opening through which the detachable rail appears,
When closing the hatch, the lifting rail is lowered below the hatch combing, and at least a part of the wheel is dropped into the opening,
A hatching device characterized in that when the hatch is opened, the hatch cover is lifted by the high lift device and the wheel is lifted from the opening. A guide rail fixed on the hatch combing;
A plurality of hatch covers having wheels rolling on the guide rail;
In a hatch device comprising a high lift device that lifts the hatch cover away from the hatch combing to a high place,
A lifting rail that cuts out a part of the guide rail so as to freely move up and down with respect to the hatch combing;
A biasing means that is spanned between the lifting rail and the hatch combing and biases the lifting rail in a lifting direction;
Restriction means for restricting the lowering of the lifting rail;
Opening to the hatch combing, and having an opening through which the detachable rail appears,
When closing the hatch, release the restriction means, add the weight of the hatch cover to the lifting rail, lower the wheel and the lifting rail,
A hatching device characterized in that when the hatch is opened, the hatch cover is lifted by the high lift device and the wheel is lifted from the opening.

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