FI58746C - OEPPNINGS- OCH STAENGNINGSMEKANISM FOER LASTLUCKA - Google Patents

Description

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C Patent granted on 10 04 1931.¾¾ (45) Patent raedielat ^ y ^ (51) Kv.lk?/IntCI.3 B 63 B 19/19 FINLAND —FINLAND (21) P * M »ttlh * k * mu * - PatMitmftkniiig 750839 (22) Hakamlipilvft - Anattknlnpdtf 21.03 * 75 (23) AikupiM ~ GIMghat * d «(21.03-75 (41) Tullut lulklMkal - Bllvlt offentllf 22.09.76

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Patent · och raglataratyralaan AnaMon utlajd oeh utl.tkrtftan publkartd 31.12.80 (32) (33) (31) Requested atuoikawi — Baglrd prloritet (71) (72) Mauno Olavi Soramäki, Rakuunatie 58 A, 20720 Turku 72,

Suomi-Finland (FI) (7U) Yrjänä Vuori (5 ^) Mechanism for opening and closing the hatch - Öppnings- och Stäng-ningsmekanism for lastlucka [. when the cargo opening is opened, these blocks are assembled at the ends of the machines by various methods, either by wire pulling or hydraulically using different hydraulic means. Such systems are shown in Figures 1, 2, 3 and A.

Fig. 1 shows an A-part hatch when pulled open by a wire, and Fig. 2 shows a corresponding hydraulic arrangement, in which part 2 is a hydraulic member causing a torque opening moment in the joint of the blocks. The same solutions for 3-block hatches are shown in Figures 3 and 4, the solutions in rr have a long tensile distance of the wire in Figures 1 and 3; in Figures 2 and 4, the high cost of the hydraulic members, and the fact that the hydraulic members often come above the hatch cover level in the solution shown in Figure 4.

Figures 3 and 3 show a 3-block hatch in which the traction distance has been increased by approx. And the number of hydraulic members has been reduced. The solution has an auxiliary cable 1 connected between the last two blocks as shown in the figure, which tightens when the door is opened and pulls the last block to the vertical position. The door is then opened by means of a cable 2 or a hydraulic member 3 or 4. In order to tighten the auxiliary wire rm 1, a hoop 2 58746 vi is placed at one end. The disadvantage of this solution is precisely the stretching of the wire and its corrosion and wear. In addition, in order to keep the cable taut throughout the operation, several additional wheels must be connected to it in addition to the basic gear shown in Fig. 5. These increase grease usage and service points that, when poorly maintained, cause wire wear.

The object of the invention is, by replacing the wire with a rod, to eliminate the above-mentioned disadvantages and, on the basis of a simpler structure, to degrade the construction.

It is mainly characterized in that the third block, which is opened and closed by means of only one active active force member and also passive transmission members, is provided with a third Liu member, one of which cooperates with the opening of the hatch in the initial stage. , is connected to the first block by intermediate rods articulated to the side edges of this block, the slots at the other ends of which are articulated to the pins at the ends of the fixed arms attached to the third block, the intermediate rods selected so that as the joint of the joints in the first block (rod AB) rotates, the joint of the joints in the third block (rod DC) rotates at a greater angle than the first of the joints (rod AB), preferably n so that when the first block reaches the vertical position, the third block is also approximately in the vertical position.

In the accompanying figures, of which Figures 1 to 6 have already been referred to previously, 1 shows a cable-openable hatch with 4 blocks 2 shows a system according to 1, the driving force of which is hydraulic 3 and 4 show systems according to 1 and 2 For 3 hatches 5 and 6 show 3 block hatches in which the traction distance has been extended and the number of hydraulic members has been reduced 7 shows an application of the 3-part hatch of the invention and 8 ... 12 illustrate the movements 13 of the parts of this hatch shown in Figures 7 ... 12 above. 14 14 shows a solution in which the movement of the door parts is effected by a wire and 15 shows a solution in which the wire is replaced by a hinge lever.

Figure 7 shows a 3-part hatch according to the invention, in which blocks 1, 2 and 3. Blocks 1 and 2 are articulated to each other by a lower hinge 4 and blocks 2 3 58746 and 3 by an upper bar 5, the block 1 is articulated by an end hinge 6 to the hull of the vessel. a wheel 7 attached to the block 2 along the edge of the opening, a rod 8 is articulated to the upper part of the block 1, the groove 9 at one end articulates to a pin 11 at the end of the fixed arm 10 attached to the block 3. the opening of the block 3 in the initial stages of opening, the opening of the door takes place hydraulically by push cylinders 14. As the cylinders push, the block 1 turns around the end groove button 6, whereby it and the block 2 articulated to it by the lower hinge 4 start to rise from the rim. During this initial stage, the wheel 7 attached to the block 2 travels away from the end hinge point 6 until the center of the upper hinge point 5 of the lower hinge point-4 is at the same line. During this step, the pin 11 at the end of the arm 10 attached to the block 3 also travels in the slot 9 at the end of the rod 8 to its outer end, the wheel 7 starts to move towards the end hinge point 6 and the pin 11 returns to the root end of the slot 9 again. At this point, the wheel 13 in block 3 has climbed over the incline 12 and also block 3 has started to rise from the rim. When the pin 1 1 reaches again the root of the slot 9 at the end of the bar 8, the rod 8 begins to push the block 3 through the pin 11 and the arm 10, causing the block 3 to rotate around the upper hinge 5 to a vertical position as it continues to move.

Figures 8 ... 12 show the movements in the blocks and intermediate bars during the initial phase described above. To illustrate, the figures show the supposed "rods" formed inside the blocks, the articulation points of which are marked A, B, C and D, where point A = articulation point in block 1 of bar 8 point B = lower hinge point 4 point C = upper hinge point 5 point D = slot 9 and the joint formed by the pin 11 when the pin 11 is at the bottom of the slot 9

In the following description, e.g. the rod 8 can be marked as a rod AD and e.g. the distance between the points A and 4 in block 1 as a rod AB, etc. In this case, the displacements of the initial movement already described above are as follows:

As the block 1 and the accompanying block 2 articulated to it as the cylinder 14 pushes rise from the rim, the point B first approaches and passes the junction of A and D, Fig. 10, so that the diagonal spacing AC increases.

In this case, since the point C moves, it also moves to it fixedly with the rod '. CD connected point D in the slot at the end of the rod AD 4 56746, respectively. Only when the rise has continued so long that the piercing AC has returned to its original length in Fig. 11, with B above AC, does point D reach the bottom of the slot again. At this stage, said rods form a rectangular planar pattern ABCD. As the movement continues, the length of the rod AD no longer changes (The pin is at the bottom of the slot).

This position is the starting point of the mechanism operation and the forward movement causes rotation in block 3, with block 1 rotating from the position shown in Fig. 11 to Fig. 12, rotates AB by a corresponding angle and rod BC and AD rotate rod CD by a number depending on rod length BC and AD. The rod lengths and the positions of the joint points A, B, C and D are thus determined such that from said starting point, block 3 rotates more than block 1. Thus, it rotates vertically simultaneously with blocks 1 and 2. Figure 8 shows the door in the final open position. It should be noted that the weight of the block 3 keeps the pin 11 in the bottom of the slot 9 throughout the turning movement, so that no jerks occur due to the displacement of the pin.

The above application is, of course, just one of many. A similar arrangement can be used to solve a 4-, 5- or multi-part hatch.

Figure 13 shows a corresponding solution for a 5-part hatch.

Figure 14 shows a solution in which, based on the movement of the rod 8, the turning of the block 3 takes place via a wire.

Figure 15 shows a solution in which the slot at the end of the rod has been replaced by a joint lever.

The invention reduces the number of maintenance items very considerably and completely eliminates the post-treatment required after the initial setting, e.g. due to the elongation of the cable, possible. This danger does not exist in the solution according to the invention, but the cover plate of the door can extend over the bar 8, because the bar always remains below the level of the cover plate. For this reason, the mechanism disclosed by the invention is also more secure.

Claims (2)

5,58746 A three-block or multi-block hatch opening and closing mechanism, in which the operation of three or more blocks is interrupted by only one active active force element and in addition by passive transmission elements, characterized in that the third block (3) is provided with two sliding elements. ä (7,13), one (13) of which in the initial stage of opening the door in cooperation with the additional (12) is connected to the first block (1) by intermediate bars articulated to the side edges of this block (1) with slots (9) n at the other ends. ive to the pins (11) at the ends of the fixed arms (10) attached to the third block (3) as the intermediate bars (8) together with the other hatch structure form a movement at the stage when the third block (3) begins to turn into a rectangle (ABCD) of constant side lengths. the side lengths are chosen so that, as the joint of the joints in the first block (1) (rod AB) rotates, the joints in the third block (3) lten the connection segment (rod DC) rotates at a greater angle than the first-mentioned connection segment (rod AB), preferably so that when the first block reaches the vertical position, the third block is also approximately in the vertical position, A mechanism according to claim 1, characterized in that the third and fourth blocks act again, if necessary, via a similar rod (8) on the fifth, fifth and sixth seventh and so on.