KR20120025748A - Sliding hatch cover and opening method - Google Patents

Abstract

PURPOSE: A sliding hatch cover and an opening method thereof are provided to ensure work stability by removing the risk of a hatch cover being suddenly closed by external impact. CONSTITUTION: A sliding hatch cover comprises a guide rail(30), a roller(40), a sliding guide(50), and a working bar(60). The guide rail is installed on the outer wall of a coaming in a length direction. The roller is attached to the bottom of the hatch cover and moves along the guide rail. The sliding guide is attached to the top of the hatch cover and comprises a sliding groove, which is formed in a length direction. In a state one end of a working bar is connected to the sliding groove of the sliding guide, the working bar rotates around a hinge shaft and guides the vertical and horizontal movement of the hatch cover.

Description

Sliding Hatch Cover and Opening Method

The present invention relates to a hatch cover (Hatch Cover) that serves as a cover of the top of the coating (Coaming) installed in the vessel.

As illustrated in FIG. 4, a counter weight is installed at a rear side of a conventional hatch cover.

This counterweight allows the operator to easily open the hatch cover with little force. Because the counterweight causes the hatch cover to deflect the entire center of gravity to the rear, as a result, the operator simply unscrews the butterfly bolt to open the hatch cover. This is because the counterweight falls down by gravity and lifts the hatch cover in response.

However, these counterweights have two disadvantages in operating the hatch cover as described below.

First, the counterweight itself is of considerable weight, which is proportional to the size of the hatch cover, so if the operator wants to open or close the disassembly cover of considerable size, the operator may not loosen or tighten the butterfly bolt. When it comes to the ship, it takes a lot of power. In particular, if the dismantle cover is suddenly opened, there is a high possibility that a worker may be injured due to a collision with the dismantle cover, so the worker must press the dismantle cover with his arm or leg to loosen or tighten the butterfly bolt while holding If the dismantling cover is very large, it can be quite difficult for the operator to do all these tasks by himself.

Second, in order to open the hatch cover with a minimum of force, the more the weight of the counter weight is better, the weight increase of the counter weight itself can be a major factor in the increase in production cost.

On the other hand, when the existing hatch cover is opened, the opposite end of the hatch cover (B in FIG. 4) is raised to the upper side by the inlet size of the coaming based on the hinge point (A in FIG. 4). This is a very unstable condition, so if the worker does not fasten the safety locking pin separately, the hatch cover may close suddenly due to external influences, which may lead to trapped workers or collision with the hatch cover. There is a risk of safety accidents such as injury.

The present invention has been proposed to solve the above problems, by using the principle of the lever without using the counterweight, the operator can easily open or close, regardless of the size and weight, the production cost of the increase in weight It is an object of the present invention to provide a sliding hatch cover and an opening / closing method thereof, which are not only concerned about increasing, but also do not cause a sudden closure due to external influences.

Other objects and advantages of the present invention will be described below, which is not limited to the matters disclosed in the claims of the present invention and the disclosures of the embodiments thereof, but also to the broader ranges by means and combinations within the range that can be easily contemplated therefrom. Add that it will be included.

According to an aspect of the present invention,

A guide rail installed in the front and rear direction from the outer wall of the coaming;

A roller attached to a lower surface of the hatch cover and moving along the guide rail;

A sliding guide fixedly attached to an upper surface of the hatch cover, the sliding guide having a sliding groove extending in the front-rear direction;

A walking bar that rotates about a hinge axis while one end is connected to a sliding groove of the sliding guide to induce vertical movement of the hatch cover;

Present a sliding hatch cover comprising a.

In addition, the present invention,

As the opening and closing method of the sliding hatch cover,

A first step in which the closed hatch cover is driven by the clockwise rotation of the working bar and moves together along the rotation trajectory of one end of the working bar;

A second step of moving the hatch cover backwards;

A third step of opening the hatch cover while rotating in a clockwise direction;

It presents a method of opening and closing the sliding hatch cover comprising a.

According to the present invention, the following advantageous effects occur. First, regardless of the size or weight of the hatch cover, the operator can easily open or close, there is no fear of increase in manufacturing costs due to the increase in weight. Second, even if the worker does not fasten the safety lock pin separately after opening the hatch cover, there is no fear that the hatch cover may be suddenly closed by external influences, thereby ensuring the stability of the work.

Other effects of the present invention, as well as the matters described in the above-described embodiments and claims of the present invention, as well as potential effects that may occur within the range that can be easily estimated therefrom and potential advantages that contribute to industrial development It will be added that it will be covered by a wider scope.

1 is a sliding hatch cover (side view) according to the present invention.
Figure 2 is a sliding hatch cover (top view) according to the present invention.
Figure 3a to 3f is a process of opening the sliding hatch cover in accordance with the present invention.
4 is a conventional hatch cover.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

<Configuration and working relationship of the sliding hatch cover according to the present invention>

1 and 2 are a side view and a plan view of a sliding hatch cover according to the present invention.

The sliding hatch cover according to the present invention includes a guide rail 30, a roller 40, a sliding guide 50, and a walking bar 60.

Hereinafter, the configuration and working relationship of the sliding hatch cover according to the present invention will be described in detail with reference to FIGS. 1 and 2.

roller

The roller 40 is attached to the lower surface of the hatch cover 20 and is placed on the guide rail 30 to move along the guide rail 30.

At this time, since the roller 40 is integrated with the hatch cover 20, when the roller 40 moves, the hatch cover 20 also moves together. That is, in the present invention, the roller 40 functions as a moving means of the hatch cover 20.

In the present invention, the roller 40 is attached only to the front end of the hatch cover 20, as shown in Figure 1, which is related to the structure of the guide rail 30 as described later.

Guide rail

The guide rail 30 is installed long in the front-rear direction on the outer wall of the coaming 10 (FIG. 2).

In this case, as shown in FIG. 1, the vertical distance H between the guide rail 30 and the hatch cover 20 should be smaller than the vertical length L of the roller 40. This allows the hatch cover 20 to rise above the coaming 10 while the roller 40 moves on the guide rail 30, thereby interfering with the coaming 10 during the movement of the hatch cover 20. This is to prevent this from happening (see FIGS. 3B to 3D).

However, as shown in FIG. 1, the guide rail 30 should be bent downward by a predetermined curvature (hereinafter, referred to as a “curve section”) 31. By doing so, the roller 40 is lowered gradually at the front end of the guide rail 30 so that the hatch cover 20 is completely closed over the coaming 10 (see FIGS. 1 and 3A). ). In order to completely cover the hatch cover 20 as described above, the roller 40 should be attached only to the front end of the hatch cover 20.

Sliding guide

The sliding guide 50 is fixedly attached to the upper surface of the hatch cover 20. The sliding guide 50 has a sliding groove 51 extending in the front and rear direction as shown in FIG. 1.

walking  bar

The working bar 60 rotates about the hinge axis 61 while one end 62 is connected to the sliding groove 51 of the sliding guide 50, and then the upper and lower sides of the hatch cover 20. Means for inducing directional movement.

As shown in FIG. 1, the hinge shaft 61 is fixedly installed on the outer wall of the top of the coaming 10, and the working bar 60 is the hinge shaft in a state in which it is installed on the outer wall of the coaming 10 by the hinge shaft 61. It rotates reciprocally by a predetermined angle about 61 (C of FIG. 1).

The working bar 60 indicated by the solid line in FIG. 1 is a state in which the working bar 60 is rotated as far as possible in the counterclockwise direction, and the working bar 60 indicated by the dotted line is the state in which the working bar 60 is rotated as far as possible in the clockwise direction. Indicates.

In this case, the rotational movement of the walking bar 60 may be made by, for example, a process in which a worker exerts a force on the other end 63 of the working bar 60.

That is, when the operator applies a force downward (clockwise) to the other end 63 of the working bar 60 indicated by a solid line in FIG. 1 (see FIG. 3A), the working bar 60 gradually rotates clockwise. When the operator applies a force upwards (counterclockwise) to the other end 63 of the walking bar 60 indicated by a dotted line in FIG. 1, the walking bar 60 also gradually rotates in the counterclockwise direction.

The operation of the working bar 60 uses the principle of the lever, according to which the operator can easily open or close the large or heavy hatch cover 20 even with a small force.

On the other hand, one end 62 of the walking bar 60 is connected to the sliding guide 50, the sliding guide 50 is fixedly attached to the hatch cover 20, the hatch according to the rotation of the working bar 60 The cover 20 also moves in conjunction. That is, the walking bar 60 is to induce the vertical movement of the hatch cover 20 through the rotation drive as described above.

In addition, one end 62 of the walking bar 60 slides between the starting point 52 and the end point 53 of the sliding groove 51 when the hatch cover 20 moves forward and backward (FIG. 3C, FIG. 3). 3d). In this case, by attaching a bearing to one end 62 of the working bar 60, such a sliding movement of the working bar 60 can be made more smoothly.

The interlocking relationship between the working bar 60, the sliding guide 50, and the hatch cover 20 as described above will be described in more detail later.

<Process of opening the sliding hatch cover according to the present invention>

3A to 3F illustrate a process of opening the sliding hatch cover according to the present invention.

Hereinafter, a process of opening the sliding hatch cover according to the present invention will be described in detail with reference to FIGS. 3A to 3F.

The process of fully opening the sliding hatch cover according to the present invention in the closed state is as follows. Of course, the process of completely closing the sliding hatch cover according to the present invention in the fully open state is the same as the reverse of the process described below.

First step

3A shows a state in which the sliding hatch cover according to the present invention is completely closed. In this case, one end 62 of the walking bar 60 is positioned at the start point 52 of the sliding groove 51. In this state, the worker places the foot on the other end 63 of the working bar 60 and applies a force downward. In this case, the worker can apply the force by using the foot, so that the force can be applied without overdoing it in a comfortable position.

When the working bar 60 starts to rotate in the clockwise direction, the sliding guide 50 and the hatch cover 20 are also attracted to the rotation of the working bar 60 along the rotational trajectory of one end 62 of the working bar 60. The rollers 40 start to move together, and in the process, the roller 40 climbs up the curved section 31 of the front end of the guide rail 30 and enters the horizontal section 32. As a result, the hatch cover 20 slightly rises above the coaming 10, thereby preventing interference with the coaming 10 during the movement of the hatch cover 20 later (FIG. 3B).

The operator continues to apply force so that the working bar 60 is rotated completely in the clockwise direction. In this state, the other end 63 of the working bar 60 comes into contact with the outer wall of the coaming 10 (FIG. 3C).

2nd step

The operator pushes the hatch cover 20 backward by applying force. When the hatch cover 20 moves to the rear, the sliding guide 50 also moves to the rear (FIG. 3D).

In this case, the working bar 60 is no longer moving in a completely rotated clockwise direction, but the relative movement of one end 62 of the working bar 60 occurs due to the rearward movement of the sliding guide 50. One end 62 of the walking bar 60 slides gradually from the starting point 52 of the sliding groove 51 toward the end point 53 and finally reaches the end point 53 and stops. This state is shown in FIG. 3D.

3rd step

The operator applies a force to rotate the hatch cover 20 clockwise (FIG. 3E). Then, the hatch cover 20 rotates gradually in a clockwise direction with one end 62 of the working bar 60, that is, the end point 53 of the sliding groove 51 as the rotation axis, and finally stands in a vertical state. Fully open (FIG. 3F).

According to the present invention, when the hatch cover 20 is completely open, the area S of the hatch cover 20 raised above the coaming 10 is much smaller than before. That is, the center of gravity when the hatch cover 20 is completely open is formed far below the conventional one. Therefore, even if the safety lock pin is not separately tightened, there is no fear that the hatch cover 20 will be closed by external influences, and if the hatch cover 20 falls down, there is no sudden closure. Therefore, the safety of the worker can be sufficiently secured.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10: Coaming
20: hatch cover
30: guide rail
31: curved section of the guide rail
32: horizontal section of the guide rail
40: roller
50: sliding guide
51: sliding groove
52: starting point of the sliding groove
53: end point of the sliding groove
60: walking bar
61: hinge axis
62: Working End Of The Walking Bar
63: the other end of the walking bar
70: Butterfly Bolt

Claims (13)

A guide rail installed in the front and rear direction from the outer wall of the coaming;
A roller attached to a lower surface of the hatch cover and moving along the guide rail;
A sliding guide fixedly attached to an upper surface of the hatch cover, the sliding guide having a sliding groove extending in the front-rear direction;
A walking bar that rotates about a hinge axis while one end is connected to a sliding groove of the sliding guide to induce vertical movement of the hatch cover;
Sliding hatch cover comprising a. The method of claim 1,
And the vertical distance between the guide rail and the hatch cover is smaller than the vertical length of the roller. The method of claim 2,
The guide rail has a sliding hatch cover, characterized in that the front end is bent downward by a predetermined curvature. The method of claim 1,
The roller is a sliding hatch cover, characterized in that attached to the front end of the hatch cover. The method of claim 1,
Sliding hatch cover, characterized in that for attaching a bearing on one end of the walking bar. As the opening and closing method of the sliding hatch cover,
A first step in which the closed hatch cover is driven by the clockwise rotation of the working bar and moves together along the rotation trajectory of one end of the working bar;
A second step of moving the hatch cover backwards;
A third step of opening the hatch cover while rotating in a clockwise direction;
Opening and closing method of the sliding hatch cover comprising a. The method according to claim 6,
In the first step, one end of the walking bar is located at the starting point of the sliding groove opening and closing method of the sliding hatch cover. The method according to claim 6,
In the first step, the roller hatching the opening and closing method of the sliding hatch cover, characterized in that to rise up in the horizontal section by riding up the curved section of the front end of the guide rail. The method according to claim 6,
In the first step, the hatch cover is lifted over the coaming, characterized in that the sliding hatch cover opening and closing method. The method according to claim 6,
In the first step, the opening and closing method of the sliding hatch cover, characterized in that the working bar is rotated completely clockwise until the other end of the working bar is in contact with the outer wall of the coaming. The method according to claim 6,
In the second step, one end of the walking bar slides toward the end point gradually from the start point of the sliding groove, and finally reaches and ends the end stop of the sliding hatch cover. The method according to claim 6,
In the third step, the hatch cover is rotated by using one end of the working bar as the rotating shaft, the opening and closing method of the sliding hatch cover. The method according to claim 6,
In the third step, the hatch cover is rotated until it is placed in a vertical state, the opening and closing method of the sliding hatch cover.

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