JPS62258881A - Automatic lock device - Google Patents

Abstract

PURPOSE:To make it possible to automatically actuate a lock device for a hatch cover, by associating the rotation of a twist lock pin of a crane spreader adapted to be used for opening and closing the hatch cover, with the operation of the lock device. CONSTITUTION:When a hatch cover is unlocked, a twist lock pin 5 of a crane spreader is inserted into a lifting recess 6 and is simultaneously fitted into a bifurcated holder 7. When the twist lock pin 5 is rotated by a drive means, the bifurcated holder 7, a rotary lever 9 and a horizontal rod 13 are moved in association with the rotation of the twist lock pin 5, and therefore, an L-like lever and an edge side rod 22 are moved in association with the former to turn a hook 29. Thereby, the locking between the hook 29 and a locking fixture 33 is released. Meanwhile the twist lock pin 5 is rotated in the opposite direction when the hatch cover 2 is locked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic locking device for a hatch cover of a ship. Furthermore, it can be applied to automatic locking devices for covers of various devices and facilities.

[Conventional technology]

A hatch cover on a conventional ship is used to close the hatch and maintain its watertightness.The hatch cover is tightened to the hatch coaming using a tightening fitting and a locking fitting, and the hatch cover is used to close the hatch and maintain its watertightness. A method is used to maintain watertightness by inserting a gasket into the tank. For tightening between the hatch cover and the hatch coaming, a number of screw tightening fittings are used, or a number of hooks that are linked to a connecting fitting operated by a hydraulic device are simultaneously actuated by the hydraulic device. etc. are used.

[The interlayer point that the invention attempts to solve]

In conventional hatch cover locking devices such as those that use a large number of screw fasteners, it is necessary to individually tighten or loosen the large number of screw fasteners when opening and closing the hatch cover. The operation is complicated and takes a long time, and there are drawbacks such as over-tightening or under-tightening of each fastening fitting. Although the above-mentioned drawbacks can be overcome with a type that utilizes the operation of a hydraulic system, the structure is complicated and expensive, and in particular, since a hydraulic system is used, maintenance, inspection, and maintenance are required. Furthermore, if left unattended for a long period of time, the engagement force of the hook may decrease due to leakage of hydraulic oil from the hydraulic cylinder, piping, etc., and there is a risk that the hook may become unexpectedly released.
It is necessary to provide some kind of auxiliary locking device to prevent such a situation from occurring, but the structure is not only complicated and expensive, but also difficult to operate. There were drawbacks.

[Means for resolving the gap]

Therefore, the present invention provides a hatch 1 cover in which the hatch is opened and closed by inserting and rotating twist lock pins of a crane spreader into a plurality of lifting recesses of the hatch cover, and a lock that locks the hatch cover and the hatch coaming. The present invention is characterized by comprising a device and an interlocking means for automatically unlocking the locking device in conjunction with rotation of the twist lock pin.

[Effect]

According to the above-described structure, the locking device of the hatch cover can be automatically operated by interlocking the rotation of the twist lock pin of the crane spreader used when opening and closing the hatch cover with the locking device of the hatch cover.

〔Example〕

To explain the automatic locking device of the present invention, the first to seventh
The figures show a first embodiment of a hatch cover for a ship according to the present invention, in which Fig. 1 is a schematic perspective view, Fig. 2 is a detailed perspective view of section A in Fig. 1, and Fig. 3 is Fig. 1 A Figure 4 is a cross-sectional view taken along ■-N in Figure 3, Figure 5 is a cross-sectional view taken along line B in Figure 1.
FIG. 6 is a partially enlarged view of section B in FIG. 1 in an unlocked state, and FIG. 7 is a partially enlarged view of the locking device of section 0 in FIG. 1. FIG. 8 is a partially enlarged view of another embodiment of the locking device, and FIG.
The figure is a cross-sectional view taken along the line WW in FIG. 8.

The arrow X shown in each of the above figures indicates the direction of operation when the hatch cover is transferred from the locked state to the unlocked state.

First, in Figure 1.2, 1 is hatch combing, 2
3 is a hatch cover, and 3 is an edge material of the hatch cover, and the top plate of the hatch cover 2 is provided with four recessed edge inbrecesses 6. 5 is a twist lock pin arranged on the lower surface of the crane spreader 4.

Next, in FIGS. 3 and 4, 7 is a bifurcated holder for supporting the twist lock pin 5, which is protruded from the upper end of a vertical pin 8 pivotally supported at the center of the bottom plate of the lifting recess 6, and 9 is a bifurcated holder whose base end is vertical. A rotary lever 12 is fixed to the lower end of the bin 8 and whose horizontal tip is pivotally connected to the elongated eye plate 11 at the base end of the horizontal rod 13 via the vertical bin 10; This is a support that is slidably supported on the back side of the top plate of No. 2.

In addition, in FIG. 5.6, an eye plate 15 is fixed to the other end of the horizontal rod 13, and is slidably supported by a bearing 14 fixed to the edge material 3 of the hatch cover 2 and passes through the edge material 3. It is configured to protrude outward. Further, in the eye plate 15, long holes bored at the base ends of two L-shaped levers 17. An eyepiece 21.21 fixed to the proximal end of the edge rod 22.22 is pivotally connected to the elongated hole by a vertical pin 20.20. The L-shaped lever 17.17 has an eye plate 18°18 whose center portion is fixed to the edge material 3 of the hatch cover 2.
vertically. It is pivotally mounted on pins 19.19.

The edge rods 22,22 are arranged parallel to and horizontally with the outer surface of the edge member 3 of the hatch cover 2.

Furthermore, in FIG. 7, the edge rod 22 is slidably supported by a bearing 23 provided on the edge material 3 of the opening cover 2, and an eye plate 26 is fixed to the other end of the edge rod 22. There is. and eye plate 26
There is a vertical pin 28 near the center on the side wall 3 of the hatch cover 2.
A vertical pin 2 is inserted into the elongated hole at the upper end of the hook 29 which is pivotally supported.
033, which is pivotally mounted by 7, is a latch fitting installed on the hatch coaming 1, and the 1 latch fitting 33 is attached to the buffer member 3.
A dowel 31 is attached through the dowel 2, and a hook 30 of the hook 29 is hooked to the dowel 31.

The hook 29 and the latch 33 form a locking device. Note that 24 is a stopper provided on the edge rod 22, and a spring 25 is interposed between the stopper 24 and the bearing 23, and the edge rod 22 is always urged by the spring 25 in the opposite direction to the arrow X direction. ing.

In FIG. 1, 22a has its base end connected to the edge rod 22.
The edge rod is connected to the eye plate 26 fixed to the eye plate 26, and is slidably supported by the edge material 3 of the hatch cover 2 like the edge rod 22, and the other end is provided with a frame shown in FIG. 7 as described above. A locking device as shown is provided. Further, in this embodiment, the horizontal rod 13 is arranged on the back surface of the notebook cover 2, but depending on the mounting structure of the lifting recess 6, it may be installed on the upper surface of the notebook. and edge rod 22.2
For 2a, it is also possible to use a wire lobe or other suitable transmission member.

Since the present invention is constructed as described above, when unlocking the hatch cover 2, the twist lock pin 5 of the crane spreader 4 shown in FIG. When the twist lock pin 5 is fitted into the attached lifting recess 6 and simultaneously fitted into the bifurcated holder 7 shown in FIG. 3, the twist lock pin 5 is rotated in the direction of the arrow X in FIG. , bifurcated holder 7, rotating lever 9, horizontal rod 13
moves in the i direction of the arrow X in FIG. 3 to the position indicated by the two-dot chain line. Furthermore, the L-shaped lever 17 changes from the state shown in FIG. 5 to the state shown in FIG. 6, and the edge rod 22 is moved in the direction of arrow X against the elasticity of the spring 25 as shown in FIG. 17 Tsuku 29 is a vertical bottle 28
The hook 29 is rotated in the direction of the arrow X as a center to take the position shown by the two-dot chain line in FIG. 7, and the hook 29 and the latching fitting 33 are released. Therefore, the hatch cover 2 is automatically unlocked.

On the other hand, to lock the hatch cover 2, rotate the twist lock pin 5 in the direction opposite to the arrow X shown in FIG. It maintains the locked state due to its elasticity.

It should be noted that the buffer member 32 not only adjusts the unevenness of the locking state due to the installation error of the locking device, but also has the effect of alleviating the excessive tightening force caused by the distortion of the hull, so it is desirable to provide it, but it is not always necessary. It is not intended to be.

Further, other embodiments of the hatch cover for a ship according to the present invention will be explained with reference to the drawings. Figs. 8 and 9 show other embodiments of the locking device, in which the twist lock pin 5 and the forked holder shown in Figs. 7. The rotating lever 9, the base end of the horizontal rod 13, etc. are the same as in the first embodiment shown in FIGS. 1-4. 8 and 9, reference numeral 13a denotes the other end of the horizontal rod, which is the other end of the horizontal rod 13 in the first embodiment, and is slidably supported by a bearing 23n fixed to the back surface of the top plate of the hatch cover 2. There is. 24a is a stopper provided on the horizontal rod 13a, and a spring 25 is installed between the stopper 24a and the bearing 23a.
A is interposed. Further, a rod-shaped hook 29a is fixed to the other end of the horizontal rod 13a.
9a is the bearing 1 provided on the edge material 3 of the edge cover 2;
It is slidably supported by 4a. 33 is a latch fitting installed on the hatch coaming 1. Therefore, as detailed in the first embodiment, when unlocking the nozzle cover 2, twist the lock pin 5 of the crane spreader 4 in the direction indicated by the arrow X shown in FIG.
When the hook 29a is rotated in the direction shown in FIG. 8 and 9, the hook 29a also moves in the direction of the arrow X shown in FIGS.

This embodiment describes a case in which it is applied to an automatic locking device for a hatch cover on a ship, but the present invention is not limited to hatch covers, but also covers for various equipment and equipment, such as skylight covers for engine rooms and pump rooms, manhole covers, pond covers, etc. It can be applied to various covers similar to these.

〔Effect of the invention〕

In short, according to the present invention, in the hatch cover, which opens and closes the hatch by inserting and rotating the twist lock pins of the crane spreader into the plurality of lifting recesses of the hatch cover, the hatch cover and the hatch:! I. The crane spreader used when opening and closing the hatch cover is equipped with a locking device that locks the coaming and an interlocking means that automatically unlocks the locking device in conjunction with the rotation of the twist lock pin. Since the rotation of the twist lock pin can be linked to the locking device of the hatch cover, an efficient and economical automatic locking device of the hatch cover which can automatically operate the locking device of the hatch cover is obtained, so that the present invention is extremely industrially applicable. It is beneficial.

[Brief explanation of drawings]

Embodiments of the present invention will be explained with reference to the drawings. FIGS. 1 to 7 show the first embodiment, FIG. 1 is a partially enlarged view of part B in FIG. 1 in a locked state, and FIG. A partial enlarged view of part B in Figure 1 in the unlocked state, Figure 7 is a partial enlarged view of part B in Figure 1.
FIG. Figure 8 shows locking device 1...hatch combing, 2...hatch cover,
3...Edge material, 4...Crane spreader-15...
・Twist lock pin, 6...lifting recess,
7... Bifurcated holder, 8, 10, 16, 19.20° 27.28... Vertical pin, 9... Rotating lever, 11.
...Long hole eye plate, 12...Support, 13,1
3a...Horizontal rod, 14, 14a, 23, 23a.
... Bearing, 15.18, 21.26... Eye plate, 17... L-shaped lever, 22, 22a... Edge rod, 24.24a... Stopper, 25.25a.
・・Spring, 29° 29a・・Hook, 3o・・
- Latching part, 31... Deposit, 32... Buffer member, 33
．． 33a...Latching metal fitting. Figure 1 Figure 2 Origin Figure 3 Figure 5 Figure 60

Claims (1)

[Claims] A locking device for locking a hatch cover and a hatch coaming in a hatch cover which is lifted to open and close a hatch by inserting and rotating twist lock pins of a crane spreader into a plurality of lifting recesses of the hatch cover; An automatic locking device comprising: interlocking means for automatically unlocking the locking device in conjunction with rotation of the twist lock pin.