EP3347265A1 - Flat anchor with claws - Google Patents

Description

 Description of the invention

 FLAT ANCHOR WITH CLAWS

The present invention relates to the hooking on the sea floor of a flat anchor already marketed, by favoring the inclination of the shovels, thus increasing its efficiency and stability from the recoil of the ship. Originally it is the weight of the shovels (7 and 8) pivoting with the launching heel (6) of the flat anchor which, placed on the ground, were anchored by burrowing into the ground, during the retreat of the ship, this opening became random according to the typology of the ground because the anchor ripened before opening and the vessel lost precious meters in a cove. In addition the shifting caused degradations on the sea floor because there was plowing.

 Inventions have tried to solve the problem of shifting, which differ from mine according to the following points:

 ► The invention of LONG GEORGES W (US) of July 7, 1984

 (US 4,459,934 A) discloses a claw device (46 and 48) which is perpendicular to the rod and prevents the anchor from sinking into the ground. Their respective shape does not keep the shovels inclined and does not limit the plowing of the anchor on the ground. They are not up to the axis of rotation of the shovels but are positioned midway between the axis and counterweight (50). The surface of each claw (46 and 48) is perpendicular to the rod (21). The supports (34 and 36) are present throughout the width of the anchor and promotes plowing.

► The invention of MANNHEIMER ANKERFABRIK UND HAM of December 15, 1926 (FR 614 469 A) describes a unique claw device (e) per shovel face, of substantial width and adapted to the shovel which is near the yard and perpendicular to the rod (f) it opposes the burying of the shovels in the sand and its width does not favor the plow shovel.

 ► The invention of ERNST A KOBLENZ of December 20, 1951 (DE 825

504 C) discloses a claw device (6 and 7) which is similar to the claws of MANNHEIMER ANKERFABRIK UND HAM of December 15, 1926 (FR 614 469 A).

 ► The invention of CLAUDE BONET AND SON on December 14, 1957 (FR 1 080 883 A) describes a claw device P2, located on the neck

(E) at the rear of the axis of rotation of the excavators PI and do not favor the pivot. The neck (E) presents the entire width of the rear of the anchor, resting on the ground, opposes the penetration of the anchor, not stabilizing and not avoiding the reversal of it .

 ► The invention of LEVY GUY CHARLES (FR) of October 22, 2004

(FR 2 853 879 A1) discloses a device of a ring 2 located at the rear of the axis of rotation ds shovels, which favor less immediate pivot. At the end of said crown, there are claws whose plane surface is parallel to the axis of rotation of the shovels. The width of the claws (1) opposes the burial of the shovels, because they are perpendicular to the sense of the movement of the anchor. The device removable or not according to the invention overcomes these disadvantages, allowing the hooking of a marine anchor on the ground, said anchor comprising two shovels (7, 8) placed on the ground, a yard (5) and a priming heel (6),

The claws (1 and 2) fixed on the side of each shovel (or near) of the priming heel (6), said three-dimensional claws (x, y, z) have a vertical dimension (y) predominant to the other two to form a profiled shaft profiling said facilitates its burial in the marine soil during the pull (x) of the anchor.

The claws (1 and 2) are placed on the tilting axis (z) of the shovels, the end of said sheaves is in the axis, or near the axis of inclination of the said shovels

The claws allow the shovels to tilt quickly and find a quick grip on the ground from the retreat of the ship, the anchor opens and clings very quickly in the ground for immediate efficiency with greater stability (z), it is no longer on the side, does not turn over when the pull of the anchor is not in alignment with the penis (5). The shifting movement is quickly stopped. The flat vertical surface of the claws may have openings that limit the resistance thereof in the sand by passing the latter, when the anchor traction changes direction, the claws take support on the ground, offering a horizontal axis of rotation that rotates the anchor, it is no longer on the side. The sand introduced into the openings increases the tear resistance of the claw. There are four hanging points, the two points of the anchor and the two penetrating ends of the claws which have a flat surface to maintain the angle of penetration on all floors. Anchor with claws, almost no longer ripant, the sea floor is preserved from the degradation of a classic anchor. Moreover the sailors and their boats are secure. Another version of claws (Figure 6a and 6b) allows the pivot about an axis present on the part screwed on the anchor. This has the effect of bringing them into alignment with the shovels in order to store the assembly more easily.

 The user can retract the claw 2 by pulling it and rotate it in "storage" position. Pins will lock in openings provided for this purpose. For more security, it will be possible to drill the pin to insert a pin or key (not shown).

All claws shown below will be attached to or near the sides of the shovels, at the verge of the spindle rotation, or at a short distance from the spindle to the tip of the shovels. The claws openwork or not, could also be molded in the manufacture of the anchor.

 If the claw is attached to the rear of the axis of rotation of the shovels, its high end shall be machined in such a way that part of the latter is at the front of the axis of rotation to ensure the pivot of the shovel. the shovel ?

According to Figures 1 and 2

The claws (1 and 2) are placed on the axis of inclination of the shovels. They may be either provided with spikes, or provided with flat surfaces at their ends and parallel to the surface of the shovels. The claws (let 2) are secured to a profile type "U" (3 and 4) which is pierced with a hole to be fixed on the shovel (7 and 8).

In the case of a temporary fixation with anchor drilling:

This hole is used to introduce a bolt to fix the device on the shovel of the flat anchor (7 and 8) on the drilled anchor.

In the case of a temporary fixing without drilling the anchor: it is tapped in order to insert a screw that will lock the anchor to tightening.

Subsequently the description will be on one of the two claws (1 and 2) present on the shovels (7 and 8) because the said claws are identical. According to Figure 3

 A form of claws having a tip at its end, secured to the profile "U" (4) where is drilled the hole 9 which fixes the anchor on the shovel by a bolt. According to Figure 4

 Another form of claw 1 and 2 has a flat surface (20) with openings (21 and 22), there are at its ends two flat surfaces (23 and 24) obtained by folding the workpiece at 90 °, two legs ( 25 and 30) perpendicular to the plane surface and parallel to each other, are welded to the surface (20).

On the fixing lug (25), the hole (27) is intended to receive a screw passing through the drilled anchor. Said screw is screwed into a hole (29) threaded on the bracket (30), two holes (26 and 28) are threaded to receive two screws that block the shovel clamping.

According to Figure 5

 Another form of claw (1 and 2) comprises a plane surface (31) folded at its center in the shape of a "U" and then at an angle of 110 ° having two openings (38,39), two lugs (40 and 41 ) are bent at its end at an angle of 110 °, six holes (32, 33, 34, 35, 36, 37) are drilled on the U, the holes (34 and 36), in the axis are intended to receive a bolt which maintains the parallelism of the two sides of the U, the holes (32, 33, 35 and 37) tapped, are intended to receive 4 screws which serve to block the shovel of the anchor. According to Figure 6a, 6b, 6c and 6d

 Another form of claw (1 and 2) retractable for storage, a tapped pin is welded to the middle of the base of the profile "U" (4), which has lugs (14 and 15), on the said axis is inserted a part 2 pierced at its center, with openings (10,11) corresponding to the lugs, the claw (2) is held in position in the lugs on the part 4 by a spring (13) compressed by a nut (12) .

The "U" profile (4) is pierced with four holes. The holes 16 and 19 are intended to receive a bolt passing through the drilled anchor, two holes 17 and 18 are threaded to receive two screws that block the shovel clamping. According to Figure 7

 Another form of claw molded on the flat anchor, the said claws have a surface (46,47,52,53) parallel to the rod (5) and perpendicular to the surface of the shovels as well as flat surfaces at their ends (50). , 51,48,49), parallel to the surface of the shovels.

According to Figure 8a

 We see another type of mounting claws, 4 half-claws (42,45,43,44) are placed on both sides shovels drilled equidistant from the yard.

According to Figure 8b

 Semi-claws folded at their ends at a 90 ° angle, one end of the half-claw (48) is pierced with a hole to be fixed on the anchor by a bolt with the other half -claw.

The other end of the half-claws (46) has been bent at 90 ° to have a flat end.

 An opening (47) allows to open the half-claw.

If debt half claw is attached to the back of the rotation axis of the shovel the flat portion (46) should be long enough to be ^AA or on the axis of rotation of the shovel ..

According to Figure 9

 We see the same half-claw that Figure 8 is shown but with two mounting holes (50 and 51) that improve the stability of the claws.

According to Figure 10

 Several possible claw shapes (FIG. 10a, FIG. 10b, FIG. 10c, FIG. 10d) can be welded, molded, bolted to the shovels of the anchor.

fïglO a

The body of the claw (52) is cylindrical and has at its end a flat surface (53).

fïglO b

 The body of the claw is cylindrical and is terminated by the surface of the cylinder.

figlO c

The body of the claw is polygonal and has at its end a flat surface. figlO d

 The body of the claw is polygonal and is terminated by the surface of the polygon.

Fig 10th

 The body of the claw is cylindrical, the shaft formed with an angle from the plane (x, z)

According to Figure 11

We see the behavior of the anchor on a hard bottom. The claws support and give an optimum angle of penetration shovels. It burrow directly into the ground. According to Figure 12

 We see the behavior of the anchor on a sandy bottom. The flat surfaces of the claws prevent them at first from sinking completely and in a second time rotate the shovels in the sand, with a maximum angle.

According to Figure 13

 We see the behavior of the anchor seen from above on the bottom, when the traction is different from that of the penis.

The anchor pivots horizontally around the axis located at the claw 1. until the axis of traction is aligned with that of the penis.

With reference to these drawings, the claws may be of different sizes, in proportion to the sizes of anchors the height of the claws must be greater than that of the priming heel (6). the claws will be made of stainless or galvanized metal.

Users will be able to fix claws in four ways:

 1 °) By using the claws of figure 3, if the thickness of the shovel fits exactly in the profile of type "U" (4) without space, they will have to drill the anchor of the same diameter as the holes and put two bolts to fix the profiles (3 and 4) on the shovels.

2 °) Using the claws of figure 4, they will drill the shovels of the anchor, and put two bolts to fix the profiles (3 and 4). If by inserting the shovels in the "U" -shaped profile, there is a gap between the shovels and the "U" -shaped profile, the screws in the holes 28 and 29 allow the shovels to be pressed onto the piece 25.

3) Using the claws of Figure 5, they can block the anchor without drilling with 4 screws, to trap the shovels (7 and 8) in the profiles (3 and 4).

4 °) By using the half-claws of figures 9 and 10 which they will fix by one or more bolts symmetrically on the shovels, on each side of the shovel with the same distance of the yard and one under the other. The retractable version (Figure 6) allows the claws (1 and 2) to fold and fold parrallelements to the shovels, to store the anchor in a locker without taking up too much space. (Figures 6a, 6b, 6c, 6d).

The drawings are given as examples and the claws may have other shapes if the esential characteristics of the so-called grififes are preserved (three-dimensional claws (x, y, z) reported on a flat anchor in the axis of inclination of the shovels and which have a vertical dimension (y) predominant to the other two to form a profiled shaft, said profiling facilitates its penetration into the seabed during the pull (x) of the anchor).

The device according to the invention is particularly intended to ensure the opening, efficiency and stability of the shovels of the anchor on the ground, immediately when the ship retreats. This has the consequence, to preserve the eco-system of the seabed, increase the safety of sailors by significantly reducing the reversal, stall and shifting of the anchor.

Claims

 claims 1) Device for attaching an anchor placed on the sea floor, comprising two excavators (7, 8), a rod (5) and a priming heel (6), characterized in that claws ( 1 and 2) are fixed on the flank or near the edge of each shovel near the heel ^boot (6), said three-dimensional claws (x, y, z) have a vertical dimension (y) casting the other two for forming a profiled shaftje said profiling makes it easier to penetrate the sea floor during the pulling (x) of the anchor. 2) Device according to claim 1 characterized in that the claws (1 and 2) are placed on the axis of inclination (z) of the shovels, the end of the said claws is in the axis, or near the tilting axis of sopelles, 3 °) Device according to claim 1 characterized in that the claws (1 and 2) are fixed on the shovels of a flat anchor, for example by a threaded system. 4) Device according to claim 1 characterized in that the claws (1 and 2) are provided with flat surfaces at their ends. 5 °) Device according to claim 1 characterized in that the claws (1 and 2) are provided with devices facilitating the attachment of the excavators in the ground, for example spikes. 6 °) Device according to one of the preceding claims characterized in that the claws (let 2) are made integral on "U" type profiles (3 and 4), which are pierced with holes to be fixed by a threaded connection on the shovels (7 and 8). 7 °) Device according to claims 1 to 4, characterized in that the claws (1 and 2) comprise a flat surface (20) with openings (21 and 22), there are at its ends two flat surfaces (23 and 24). ) obtained by folding the part at 90 °, two lugs (25 and 30) perpendicular to the flat surface and parallel to each other are welded to the surface (20), the holes (27 and 29) are intended to receive a through bolt pierced anchor.On the fixing lug (25), the hole (27) is adapted to receive a screw passing through the drilled anchor which is screwed into a threaded hole (29) on the fastening lug (30), a Shovel lock is provided which is for example two screws inserted into the two tapped holes (26 and 28) blocking the shovel. 8 °) Device according to claims 1 to 4, characterized in that the flat surface (20) of the claws (1 and 2) is folded at its center in the shape of "U" and then at an angle of 110 ° with two openings, two tabs are folded at its end 70 °, six holes (32, 33, 34, 35, 36, 37) are drilled on the U, the holes (34 and 36), in the axis are intended to receive a bolt which maintains parallelism on both sides of the U, the threaded holes (32, 33, 35 and 37) are intended to receive screws which block the shovel when tightened. 9 °) Device according to claims 1, 2, 3, 4 characterized in that the claws (1 and 2) are welded to a threaded axis in the middle of the base of the profile "U" (4), which comprises pins ( 14 and 15), on the said axis is inserted a part 2 pierced at its center, with openings (10) corresponding to the lugs, the part 2 has openings which fit into the lugs is held by a locking device which is for example a nut. 10 °) Device according to claim 6 and 9, characterized in that the profile "U" (4) is pierced with four holes. The holes 16 and 19 are intended to receive a bolt passing through the drilled anchor, two holes 17 and 18 are threaded in order to receive the excavator locking device. 11 °) Device according to claim 1, 2, 4 and 5 characterized in that the claws are molded in the manufacture of the anchor. 12 °) Device according to claim 1, 2, 4 and 5 characterized in that the claws are welded to the manufacture of the anchor. 13 °) Device according to claim 4, characterized in that the claw 1 and 2 are composed of two half-claws (45,43) and (42,44), said half-claws are bent at their ends, the end which rests on the shovel is pierced with holes which make integral the half-claws 45 and 43 to the shovel 7. and 42 and 44 to the shovel 8. the end not fixed to the shovel of the two half-claws (45, 42,43,44) is folded to form a flat surface. 14 °) Device according to claim 1,2,4 and 5 characterized in that the section of the claw body is cylindrical. 15 °) Device according to claim 1, 2,4 and 5 characterized in that the section of the body of the claws is polygonal.