JPH0663216B2 - Tension of mooring line, lashing method - Google Patents

Description

The present invention relates to a method for tensioning and lashing mooring lines.

[Conventional technology]

Conventionally, as a means for tightening and lashing mooring lines, there are a capstan exclusive system in which one capstan is provided for a pair of bollards and a capstan common system in which one capstan is provided for a plurality of pairs of bollards. Has adopted a common capstan system to save equipment costs and installation space.

In this capstan common system, for example, first, as shown in the perspective view of FIG. 5 (1), a mooring line 016 inserted between a pair of fixed drums 03, 03 of a bollard 01 to be used is inserted into the capstan 017. After several turns, the worker 018 pulls the end and applies a small back tension to rotate the capstan 017 to tension the mooring line 016, and then to the perspective view (2) in the same figure. As shown, the tensioned mooring line 016 is routed through the rope clamp 019 to the eye hardware 02 on the upper deck 020.
Temporarily tied up to No. 1 and mooring line 01 on the side of Capstan 017
After loosening 6 once, several workers 022 pull the mooring rope 016 and wind it around a pair of fixed drums 03, 03 of the bollard 01 in an 8-shape to fasten them.

However, such means have the following drawbacks.

(1) Temporarily mooring line 016 and eye hardware 0 on upper deck 020
Since the rope 21 is temporarily fixed to the bollard via the rope clamp 019, the work of changing the fixation to the bollard 01 is troublesome.

(2) To secure the mooring line 016 to the bollard 01, a certain amount of line tension must be applied, which requires several workers 022, which is not labor-saving and labor-saving.

[Problems to be solved by the invention]

The present invention has been proposed in view of such circumstances,
It is an object of the present invention to provide a method for tensioning and lashing a mooring line that requires a small number of work steps and saves labor and labor.

[Means for solving problems]

To this end, the present invention comprises a pair of bollards in which a reverse rotation preventing free drum and a fixed drum are established in parallel or a pair of reverse rotation preventing free drums are established in parallel, and the mooring line is provided with the reverse rotation preventing type. The first step of winding the free drum a plurality of times and then the capstan a plurality of times, while the worker pulls the end of the cap drum forward to normally rotate the capstan to tension the mooring line, and the capping line to the capstan. It is characterized by comprising a second step of staking it from the above and then securing it to both the bollards.

[Action]

With the above structure, the mooring line which is tense can be fixed to the bollard as it is, and the mooring line can be tightened by the capstan and the back tension of the mooring line when fixing the mooring line to the bollard can be small. .

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view of a mooring line device showing a working procedure thereof, FIG. 2 is a partial longitudinal side view of FIG. 1, and FIG. Fig. 4 is a horizontal cross-sectional view along III-III, Fig. 4 is a perspective view of a mooring line device showing a modified example of Fig. 1, and (1) and (2) of Fig. 1 are tension and lashing procedures for mooring lines, respectively. Indicates.

In the above figure, the same symbols as those in FIG. 5 indicate the same members as those in FIG. 5, respectively. First, in FIG. 1, 1 is a pair on a rectangular base 2 with appropriate intervals in the longitudinal direction. It is a free drum type bollard in which the reverse rotation prevention type free drums 3 are installed upright.

Next, in FIGS. 2 to 3, reference numeral 4 denotes a rigid cylindrical shaft whose lower end is welded to the base 2 and whose upper end is closed by the top plate 4a. The free drum 3 is inserted through the bearing 6 and the like.
Reference numeral 7 denotes a ratchet ring which is horizontally fixed along the inner circumference of the upper end of the free drum 3. A plurality of regular wide V-shaped grooves 8 are formed on the inner circumference of the ratchet ring 7.

A central portion 9 is pivotally supported by a rigid pin 10 on the top plate 4a of the rigid cylindrical shaft 4, a base portion is pulled inward by a spring 12, and an end portion is a ratchet 1 which is in pressure contact with an inner circumference of the ratchet ring 7.
3 is a top plate fixed to the upper end of the free drum 3 by a plurality of stud bolts 14, and 15 is a worker.

In order to secure the mooring line 016 to the bollard 1 in such a structure, first, as shown in FIG. After wrapping, mooring line 0 on Capstan 017
16 is wound several times, the end of the cap 16 is pulled by one worker 15 and a relatively small back tension is applied, and the capstan 017 is normally rotated to tension the mooring line 016.
Then, as a second step, the mooring line 016 is unfastened from the capstan 017 to be fixed to the bollard 1 as it is.

In the above work, when the capstan 017 is used to normally rotate the free drums 3, 3 in the tension direction of the mooring rope 016, the mooring ropes 016 and the free drums 3, 3 are integrated with almost no slipping. Since it does not generate frictional resistance between the two, it is possible to perform tensioning work with the mooring rope 016 wound around the free drums 3 and 3.

Then, the mooring line tension work was completed and the capstan 017
Even if the back tension of the mooring line 016 on the side is slightly loosened,
Since the free drums 3 and 3 are prevented from rotating in the reverse direction by the reverse rotation preventing mechanism, the mooring line 016 and the free drum 3, 3
The tension of the mooring line 016 can be maintained as it is due to the frictional resistance between the mooring line 3 and the mooring line 016, and thus the lashing work of the mooring line 016 can be easily performed by the force of one worker 15.

Next, in FIGS. 4 (1) and (2), reference numeral 1a is a modification of the free drum type bollard 1, which is a free drum type bollard 1a.
The fixed drum 03 is erected at the front end of the base 2a, and the free drum 3 having the same structure as the structure shown in FIG. 2 is erected at the rear end.

In such a structure, when the mooring rope 016 is tensioned and fixed to the free drum type bollard 1a, the mooring rope 016 of the free drum 3 is firstly attached as the first step as shown in FIG. 4 (1). After winding several times on the lower part, the mooring rope 016 is wound around the capstan 017 several times, and the end of the mooring rope 016 is pulled by one worker 15a and the capstan 017 is rotated forward while applying a relatively small back tension. Tension the rope 016, then as the second step, FIG. 4 (2)
As shown in FIG.
Is unwound from the capstan 017 and wound around the upper portion of the free drum 3 and the fixed drum 03 a plurality of times in a figure eight shape to be fixed to the free drum bollard 1a.

According to such a modified example, the same operational effect as that of FIG. 1 can be obtained, and the manufacturing cost thereof can be further reduced.

According to such a method, the following effects can be obtained.

(1) The capstan can be tensioned by rotating the capstan while the mooring line is wound around the free drum of the bollard, so that the number of subsequent mooring line staking operations is reduced and labor is saved.

(2) Since the backtension of the mooring line when tightening the mooring line in the capstan or when tying the mooring line to the bollard is small, the number of workers is reduced and labor is saved.

〔The invention's effect〕

In short, according to the present invention, a reverse rotation prevention type free drum and a fixed drum are established in parallel, or a pair of bollards in which a pair of reverse rotation prevention type free drums are established in parallel are provided, and the mooring line is reversely rotated. After the protective free drum is wound a plurality of times and then wound around the capstan a plurality of times, while the operator pulls the end of the capstan forward, the capstan is normally rotated to tension the mooring line and the mooring line. Since it comprises the second step of fastening the caps to both the bollards after loosening them from the capstan, the number of working steps is small, and the labor-saving and labor-saving tension and lashing method for mooring lines can be obtained.
The present invention is extremely useful in industry.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a mooring line device showing a working procedure of one embodiment of the present invention, FIG. 2 is a partial vertical sectional side view of FIG. 1, and FIG.
The figure is a horizontal cross-sectional view taken along the line III-III in Fig. 2, and Fig. 4 is a partial perspective view of the mooring line device showing a modified example of Fig. 1, and (1) and (2) are mooring lines, respectively. Shows the tension and staking procedure. FIG. 5 is a partial perspective view of a known mooring line device.
(1) and (2) show the tension and lashing procedure of mooring lines, respectively. 1, 1a ... Free drum type bollard, 2 ... Platform, 3 ... Reverse rotation prevention type free drum, 4 ... Hard cylindrical shaft, 4a ... Top plate, 5
… Top bearing, 6… Bottom bearing, 7… Ratchet ring, 8… V-shaped groove, 9… Ratchet, 10… Hard pin, 12… Spring, 13… Top plate, 14… Implant bolt, 1
5, 15a ... workers, 03 ... fixed drum, 016 ... mooring line, 017 ... capstan.

Claims (1)

[Claims] 1. A pair of bollards in which a reverse rotation preventing free drum and a fixed drum are established in parallel or a pair of reverse rotation preventing free drums are established in parallel, and a mooring line is provided with the reverse rotation preventing free drum. After a plurality of windings on the drum, a plurality of windings on the capstan, the first step of causing the capstan to normally rotate while the operator pulls the end of the capstan to tension the mooring line, and the mooring line from the capstan. A method of tensioning and lashing mooring lines, which comprises a second step of fastening the bollards after loosening them.