JPS6238197B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) This invention relates to a novel sliding hatch cover opening/closing device that can reliably and stably open and close a plurality of hatch panels constituting the sliding hatch cover and has a simple structure. .

(Prior Art) A conventional sliding type hatch cover consisting of a plurality of hatch panels that are stowed together in the open position of a ship's hold is such that when the hatch is opened, the first hatch panel that is stowed is in the form of a trolley, and this trolley is rolled up with a winch and slid. Alternatively, there is a trolley equipped with a motor that allows the trolley to move and slide on its own. In either case, a rack is installed on the inner upper part of the hatch coaming in the running direction of the trolley, and this rack and a pinion rotatably supported by the trolley are engaged to guide the running of the trolley.

(Problem to be Solved by the Invention) However, with only this combination of rack and pinion, as the trolley is sequentially stored in the hatch panel, the load applied to the rack and pinion increases.
There was a drawback that the meshing was not proper and the hatch panel could not be moved stably.

In addition, in order to keep the top surface of the hatch cover horizontal when the hold is closed, there is one in which the wheels of the trolley are sunk into recesses formed in the rail on which the trolley runs.

However, in this case, as the trolley descends, the pinion provided on the trolley also descends, so the rack had to be bent and formed at this portion to match the descent.

In view of the above points, the primary purpose of this invention is to properly mesh the rack and pinion to ensure stable movement of the hatch panel, and furthermore, to ensure that the rack always meshes with the pinion without having to bend and form the rack. It was done for another purpose.

(Means for Solving the Problems) For this purpose, the device of the present invention includes a plurality of hatch panels that are stored in sequence when the hold is opened, a trolley that is first stored in the hatch panel when the hold is opened, and a trolley that is first stored in the hatch panel when the hold is opened. A rail forming a recess into which the wheel of the trolley falls when the ship's hold is closed; a rack installed in the running direction of the trolley on the inside upper part of the hatch coaming; and a rack rotatably supported by the trolley and meshing with the rack. and a clamping member that cooperates with the pinion to clamp the rack at all times, and the pinion is rotated together in parallel with a vertical plane along the running direction of the trolley. The pinion shaft is supported on both sides by a pair of bearing arms, and the pinion shaft and the output shaft of the motor installed on the trolley are connected by a universal joint.

The details of the apparatus of the present invention will be explained below based on the preferred embodiment shown in the drawings.

A plurality of hatch panels 2, 2, .
When the hold 1 is closed, the hatch panels 2, 2... are combined so as to form one horizontal plane as a whole, and when opened, the bent part having an approximately L-shaped cross section is located slightly lower than the horizontal plane formed when the hold 1 is closed. In order to do so, the horizontal planes of the respective hatch panels 2, 2, . . . are inclined. Further, near the bent portion of the substantially L-shaped cross section, there is provided an overlapping piece 3 projecting outward so as to be horizontal when the hold 1 is closed. The overlapping piece 3 overlaps with the horizontal tip of the adjacent hatch panel 2 when the hold is closed, eliminating the gap between the hatch panels. This is done below the horizontal plane of 2.

The hatch panels 2, 2, . . . are opened and closed by constructing a trolley 4 as the panel that is first stored when the hold 1 is opened, and running the trolley 4. That is, a wheel 5 is rotatably supported by a shaft 6 on a trolley 4 so that the wheel 5 runs on a rail 8 provided at the inner lower part of the hatch coaming 7, and a hatch panel 2 is mounted at the inner upper part of the hatch coaming 7. , 2 .

In the figure, reference numerals 12 and 12 indicate a pair of bearing arms with one end fixed to a pin 20 that is mounted between brackets 19 and 19 fixed to the trolley 4, and the pinion shaft 13 is supported on both sides by this pair of bearing arms. , this pinion shaft 13
The pinion 10 is pivotally supported at the tip. That is, the bearing arms 12, 12 are each provided so as to be rotatable about the pin 20 along the traveling direction of the trolley 4, and this rotation is caused by the rotation of the bearing arms 12, 12, respectively.
12 is not performed alone, but is performed integrally with a fixed pin 20. Further, the above-mentioned overlapping piece 3 is also provided protruding near the bent portion of the trolley 4, similar to the hatch panels 2, 2, . . . The pinion shaft 13 and the output shaft of the motor 11 are connected via an intermediate shaft 14 using a universal joint 15. In this embodiment, the rotation of the motor 11 is transmitted to the intermediate shaft 14 via the transmission 16.

In the figure, reference numeral 16 denotes a clamping member, which works together with the pinion 10 to clamp the rack 9 at all times. That is, the rack 9 has its tooth side facing downward,
The clamping member 16 is fixed to the bearing arm 12 of the pinion shaft 13 so that the clamping member 16 meshes with the pinion 10 on the lower side and has a smooth upper surface so that the clamping member 16 is always in contact with the smooth upper surface. There is. This clamping member 16 may be a roller that rolls on the upper surface of the rack 9.

The rail 8 is formed with a recess 17 into which the wheel 5 of the trolley 4 falls when the hold 1 is closed. The depth of the recessed portion 17 is sufficient so that the upper surface of the trolley 4 becomes horizontal when the wheel 5 is lowered, and one side of the recessed portion 17 is set so that the upper surface of the trolley 4 becomes horizontal when the wheel 5 is lowered.
The recessed portion 17 is formed as an inclined surface 18 (shown in the first figure) suitable for raising and lowering. Therefore, when the trolley 4 runs on the inclined surface 8 to open the hold 1, the upper surface of the trolley 4, which was previously horizontal, becomes inclined.

Also, among the plurality of hatch panels 2, 2..., the end hatch panel 2' at the opposite end to the trolley 4 is attached to the hatch coaming 7 so that its upper surface can be tilted in the same way as the hatch panels 2, 2... without moving. It's locked.

In the figure, reference numeral 21 denotes a slide rack that slides on the upper surface of the rail 8 as the trolley 4 travels, and is fixed to the trolley 4, and has a plurality of teeth 22, 22, . . . formed on its upper surface. In the figure, reference numeral 23 denotes a connecting arm formed into an oval annular shape, and one end of which is loosely inserted into a horizontal bar 24 provided horizontally on the vertical face plate of the hatch panel 2, and is guided by the horizontal bar 24 to slide in the horizontal direction. It has been made possible. In the figure, 25 is a locking piece, which is attached to the slide rack 2.
The ring member 26 is rotatably supported on the vertical face plate of the hatch panel 2 so that the tooth portion 22 of the tooth portion 1 and the tip thereof can be engaged with and disengaged from each other. ing. That is, since the adjacent hatch panels 2, 2, . . . are connected by the locking pieces 25 and the connecting arms 23, the respective hatch panels 2, 2, . . . are also all connected. Further, the locking piece 25 is given a rotational force due to its own weight in a direction in which its tip engages with the teeth 22 of the slide rack 21.

One end of the connecting arm 23 connected to the locking piece 25 pivotally supported on the hatch panel 2 adjacent to the end hatch panel 2' is loosely inserted into a horizontal bar 24 fixed to the hatch coaming 7.

To open and close the hold 1 using the hatch panel equipped with the device of the present invention constructed as described above, the pinion 10 rotates by driving the motor 11, and the rack 9 guides the pinion 10, so that the trolley 4 is placed on the rail 8. run.

In order to open the hold 1, first the wheels 5 of the trolley 4 press the slope 18 of the recess 17 formed in the rail 8.
rise along the As the trolley 4 rises, the upper surface of the trolley 4, which was horizontal when the hold 1 was closed, slopes and the bent portion on which the overlapping piece 3 is protruded enters the lower part of the upper surface of the adjacent hatch panel 2, and as the trolley 4 moves, the trolley 4 4 will be stored in the adjacent hatch panel 2. and trotsko 4
The upper surface of the hatch panel 2 housing the hatch panel 2 is also inclined so as to be parallel to the upper surface of the trolley 4, and furthermore, as the trolley 4 travels, it gets into the lower part of the upper surface of the adjacent hatch panel 2. The hatch panel 2 housing the trolley 4 is then stored in the hatch panel 2 adjacent thereto. That is, the hatch panels 2 are sequentially housed in adjacent hatch panels 2.

As the trolley 4 moves when the hold 1 is opened, the slide rack 21 fixed to the trolley 4 slides on the upper surface of the rail 8, and the teeth 22 of the slide rack 21 and the respective hatch panels 2, 2...
The distal end portion of the locking piece 25 that is pivotally supported by the locking piece 25 is engaged with the locking piece 25 . That is, when the hold 1 is closed, the hatch panels 2, 2... are not in a stowed state and the connecting arm 23 connecting the hatch panels 2, 2... is in a tense state, so the locking piece 2
5 was pulled up against its own weight so as not to engage with the teeth 22, but as the trolley 4 moves, the tension in each connecting arm 23 is released, and the locking piece 25
is rotated by its own weight, and the tip of the locking piece 25 is positioned at a position where it engages with the toothed portion 22. When the hold 1 is opened, the tips of the locking pieces 25 engage with the teeth 22 of the slide rack 21, as shown in FIG.

Next, in order to close the hold 1, the trolley 4 is moved in the opposite direction to the direction in which it is opened, and as the trolley 4 moves, the slide rack 21 slides and engages the teeth 22 of the slide rack 21, respectively. Since the tips of the locking pieces 25 provided on the hatch panels 2, 2, . . . are engaged with each other, the hatch panels 2, 2, . Accompanying this movement, the connecting arm 23 connected to the locking piece 25 pivoted on the hatch panel 2 adjacent to the end hatch panel 2' is first tensed, and the tension causes the locking piece 25 to pull up the locking piece 25. As the hatch panel 2 is rotated and disengaged from the toothed portion 22, the hatch panel 2 stops moving without being accompanied by the slide rack 21, and is positioned at an appropriate position for closing the hold 1. Become. Next, the connecting arm 23 that connects this stopped hatch panel 2 and the adjacent hatch panel 2 is tensed, and the engagement with the teeth 22 of the locking piece 25 is released, and the stopped hatch panel 2
The adjacent hatch panel 2 will stop moving. In this way, the locking pieces 25 are sequentially disengaged from the teeth 22, and the respective hatch panels 2, 2... are stopped at appropriate positions, thereby closing the hold 1.

The running of the trolley 4 for opening and closing the above-mentioned hold 1 is carried out by rotating a pinion 10 provided on the trolley 4, and the pinion 10 is guided by a rack 9 installed on the inside upper part of the hatch coaming 7. . The apparatus of the present invention is provided with a clamping member 16 that cooperates with the pinion 10 to clamp the rack 9 at all times, and the clamping member 16 also moves on the upper surface of the rack 10 together with the pinion 10. The meshing condition of the two parts is ensured.

In addition, when the hold 1 is closed, the hatch panels 2, 2, etc. are prevented from moving due to vibration or rocking of the ship, so that the hold 1 is not easily opened. The wheels 5 of the trolley 4 are placed on the rail 8 so that the 2... can be easily stored.
When the trolley 4 descends into the depression 17, the motor 11 and intermediate shaft 14 attached to the trolley 4 also descend together. At this time, the pinion shaft 13 is such that the bearing arms 12, 12 that support it on both sides are rotatable about the pin 20 in the running direction plane of the trolley 4, and the intermediate shaft 14 and the universal joint 15 Since they are connected, it is also possible to avoid being affected by the lowering of the intermediate shaft. Therefore, it is possible to maintain the height position where the pinion 10 meshes with the rack 9 without being lowered into the recess 17 of the trolley 4. There is no need to form a bend to match the drop to 17. Even if the rack 9 is not bent and is straight, the holding member 16 engages with the upper surface of the rack 9, so that the hold 1 can be maintained while the pinion 10 and the rack 9 are reliably engaged. It will be closed.

(Effects of the Invention) As described above, the device of the present invention allows a plurality of hatch panels to be sequentially stored by the running of a trolley, and further combines a holding member with a pinion rack that controls the running of this trolley, and the holding member and the pinion Since the rack is always held in place by this method, the hatch panel can be moved reliably and stably. In addition, since the pinion and the motor that rotates it are connected via an intermediate shaft using a universal joint, the height of the pinion will not change in any way even if the trolley is dropped into a recess. There is no need to bend and form the rack that meshes with the pinion, which has the effect of eliminating the labor of processing the rack and simplifying the structure.

[Brief explanation of the drawing]

The drawings show a preferred embodiment, and FIG. 1 is a side view of a sliding hatch cover equipped with the device of the present invention, taken in cross-section in the running direction of the hatch panel, with the middle section omitted; The right side of the figure shows the state when the hold is closed, and the left side shows the state of the ship in progress. FIG. 2 is a side sectional view showing the state of the hatch panel when the hold is opened. FIG. 3 is a partially cutaway plan view showing a half portion from the center line in the running direction of the hatch panel. FIGS. 4 and 5 are diagrams showing essential parts of the present invention. 1...Holding, 2...Hutch panel, 4...Trolley,
7... Hatch coaming, 8... Rail, 9... Rack, 10... Pinion, 12... Bearing arm, 13... Pinion shaft, 14... Intermediate shaft, 15... Universal joint, 16
... clamping member, 17... recessed part, 19... bracket,
20...Pin.

Claims (1)

[Claims] 1. A plurality of hatch panels that are stored in sequence when the hold is opened, a trolley that is first stored in the hatch panel when the hold is opened, and a rail that has a recessed part in which the trolley runs and into which the wheel of the trolley falls when the hold is closed. , a rack installed on the inner upper part of the hatch coaming in the running direction of the trolley; a pinion that is rotatably supported on the trolley and meshes with the rack; and a clamp that works together with the pinion to constantly clamp the rack. The pinion is supported on a pinion shaft supported on both sides by a pair of bearing arms that are rotatable together in parallel to a vertical plane along the running direction of the trolley. and a sliding hatch cover opening/closing device in which the pinion shaft and the output shaft of a motor installed on the trolley are connected by a universal joint.