JPS60199788A - Opening and closing apparatus for hatch cover - Google Patents

Abstract

PURPOSE:To prevent the operating force of a cylinder from directly operating onto a main hinge by pivotally supporting one edge of an operating cylinder pivotally supported onto a supporting board, onto one edge of a long link pivotally supported onto a pin on a supporting board concentric to a main hinge and a pin which pivotally supports a short link pivotally supported onto a cover. CONSTITUTION:A pin 7 is installed onto a supporting board 6 concentrically with the main hinge 4 of the edge covers 2 of a plurality of hatch covers, and one edge of a long link 8 is pivotally supported onto the pin 7. One edge of a short link 10 is pivotally supported onto a pin 11 on the bracket 9 of the edge cover 2. These long and short links 8 and 10 are pivotally supported by a pin 13, and one edge of an operating cylinder 12 whose the other edge is pivotally supported 14 onto the supporting board 6 is pivotally supported. Therefore, when opening and closing operation is carried-put by the operating cylinder 12, the working force does not directly operate onto the main hinge 4, and the strain due to the swing, etc. of a hull is not exerted onto the operating cylinder part, and the necessity of specially installing a reinforcing part is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for opening and closing a single or intermediate hinged pair of structures, such as hatch covers and other openable lids.

Conventional opening/closing devices of this type include a cylinder direct drive type as shown in FIG. 1 and a link type as shown in FIG.

To explain the direct-acting type shown in Fig. 1 using a no-tsuchi cover as an example, one end of the panel (c) is pivotally connected to the support stand (b) on the deck (,) with a hinge pin (d), and the above-mentioned support Stand (b)
A cylinder (e) k is interposed between the panel (c) and the panel (c), and the expansion and contraction of the cylinder (1) causes the panel (C) k
It is designed to open and close.

However, in this model, when trying to open and close pile (c)' by operating cylinders (e)k, the force of cylinder (C) (equal to (The bolt will act on the hinge pin (d), requiring a thicker pin to withstand the opening/closing force (F), and the corresponding reinforcement of the hull. Because it has a statically fixed structure with six pins, it is rigid against the distortion of the ship's hull when the ship is sailing.Therefore, the force generated by the distortion acts directly on the cylinder (1), preventing damage to the cylinder (e), etc. There were many problems such as

Next, an example in which the conventional link type is applied to opening and closing the hatch cover is explained in Fig. 6.
One end of the link (f) is pivotally connected to the upper support base (b) with a pin (g), and one end of another link (F) is pivotally connected to one end of the panel (6) with a pin (j) K. , the piston rod end of the cylinder (e) mounted on the support stand (b) is pivotally connected to the other ends of both links (f) (7c) with pins (j), and the cylinder (e) is expanded and contracted. Panel (C) due to operation
It is designed to be fully opened and closed.

In this type, the force of the cylinder (e) works slightly more advantageously than the cylinder direct drive type shown in FIG.
+ Link when opened (dimension (A) due to force tilt)
This resulted in a disadvantage in terms of space on the deck.Also, this type had the disadvantage that it had to be installed close to the main hinge, and the force exerted by the main hinge could not be ignored.

The present invention eliminates the above-mentioned conventional drawbacks, and has an indeterminate structure in which the force due to distortion of the hull, etc. acts directly on the cylinder, and also prevents the cylinder's operating force from acting on the main hinge. This was done in an attempt to make effective use of the deck by placing these on the side of the structure such as the hatch cover.
A first link with a long dimension that rotates concentrically with the main hinge is arranged, and the other end of the link is connected to the other end of a second link with a short dimension that is pivotally connected to the structure. The above object can be achieved by pivotably mounting the cylinder and connecting the cylinder to the pivot point.

Hereinafter, the apparatus of the present invention will be described with reference to the drawings. As an example, a case where the apparatus is applied to a hatch cover and there are a pair of panels constituting the hatch cover will be shown.

As shown in Figures 4 to 7, panels (2) and (3) that make up the hatch cover are all installed on the deck (1).
“In the 4th configuration, the main hinge (4) of the panel (2), the deck (1) so that the pile (2) can rotate freely]
2, so that the panel (2) can rotate around the main hinge (4), and this togi panel (3) follows the panel (2) by the intermediate hinge (5) to open and close. do it like this.

Near the side of one end of the panel (2) (main hinge (4) side), a support stand (6) is fully protruding on the deck (1),
A pin (7) is provided on the top of the support base (6) at a position concentric with the main hinge (4), and one end of the elongated first link (8) is connected to the pin (7). 7) so that the first link (81) can pivot by the pin (7) concentrically with the main hinge (4), while the panel (2)
A bracket (9) is provided protruding from the side of the bracket (9), and a second link 00 whose length is extremely short compared to the first link (8) is attached to the bracket (9). is pivotally connected at pin α1). The other end of the first link (8) and the other end of the second link aO) are pivotally connected by a pin 03) so as to be integral with the piston rod tip of the cylinder (I2), and are connected to the cylinder (12). ) to the support stand (6) with the pin (1).
41, and the panel (2) is connected via the first and second links (8) and un by the telescopic operation of the cylinder L121.
The main hinge (4) can be closed and rotated.

(15) is a roller installed at the other end of panel (3), α6)
is a roller protruding from the other end of the panel (3), Q71 is a rail installed on the deck (1), and the sharpening roller Q51, which opens the hatch cover, rolls on the rail αη and the panel (3) It is possible to follow the panel (2), and the panel (3) stands up, so that the togi roller (I6) can move on the rail Q7).

Now, as shown in the drawing, when opening the panels (2) and (3) from a horizontal state, that is, from a state where the front cover is closed, proceed as follows. .

First, extend the cylinder. Cylinder “02)
When extended, the first link (8) and the second link (03), which are pivoted at the tip of the piston rod with the same pin (03),
0) is subjected to a tensile force, the tensile force of the first link (8) is absorbed by the pin (7) into the deck (1), the second link 00) is pulled by the panel ( 2) The lamina hinge (4) rotates around the entire center (0j), and a moment is generated to rotate the panel (2) counterclockwise in the entire view, opening the panel (2). When the main hinge (4) rises as the entire center, the panel (3) follows the panel (2) by the middle + W1 hinge (5), and the panels (2) and (3) raise the middle hinge (5). The center deforms into a chevron shape. When the panel (2) becomes upright, the panel (3) also follows and becomes upright, resulting in the state shown by the imaginary line in FIG. 7, and the hatch is opened.

Next, when performing a closing operation, the operation is reverse to the opening operation described above. That is, the cylinder 02 is caused to perform a shortening operation. As a result, the first link (8) and the second link 00) receive compressive force, but the second link 00)
The compressive force generates a moment f that rotates the panel (2) clockwise in the figure, causing the panel (2) to fall. The panel (3) follows the fall of the panel (2) and is pushed out, gradually becoming horizontal and closing the hatch as shown in the figure.

In the above explanation, the case where the device of the present invention is applied to a hatch cover has been shown, but it is also possible to apply it to the opening and closing of a structure constituting a lid other than a hatch cover.
Of course, it is also applicable to the case of only 2).

According to the apparatus of the present invention having the configuration as described above, the following excellent effects can be achieved.

(1) Since the cylinder has an unsteady structure so that the force due to distortion of the hull does not act directly on the cylinder, there is less need to reinforce the hull.

(11) Due to the above (1), damage to the cylinder etc. is reduced, and the weight can also be reduced because the operating force of the cylinder is prevented from acting on the main hinge.

(iii) Since the pin of the first link is provided concentrically with the main hinge, there is limited tolerance due to manufacturing errors between the large structure and the opening/closing device.

(1v) Since cylinders etc. are placed on the side of the structure,
Space on deck etc. can be used effectively.

(v) Since the pin of the first link provided concentrically with the hinge pin is provided as an extension of the hatch coaming, etc., it does not require much reinforcement.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a conventional example, Fig. 2 is a force line diagram in the case of Fig. 1, Fig. 6 is a schematic diagram showing another conventional example, and Fig. 4 is a schematic diagram showing a conventional example.
The figure is a plan view when the device of the present invention is applied to a hatch cover, FIG. 5 is a side view of FIG. 4, FIG. 6 is an enlarged view of the section ■ in FIG. 4, and FIG. FIG. (1) is the deck, f2) (3) is the panel, (4) is the main hinge, (7) is the pin, (8) is the first link, (9
) is the bracket, 0ω is the second link, 0υ is the pin, (
12) is a cylinder, and (13) is a hot cylinder. Patent Applicant Nippon Ican Co., Ltd. Patent Applicant Agent Patent Applicant Agent Figure 1 Figure 3

Claims (1)

[Claims] (2) A pin is provided on one side of one end of one or a pair of structures at a position concentric with the main hinge of the structure, and the first link is pivotally connected to the pin. The other end of the second link, the other end of which is pivotally connected to the side of the structure, is pivotally connected with a pin, and one end of the cylinder is connected to the pivot point.・Opening/closing devices such as notch covers.