JP2019131157A - Sea anchor - Google Patents

Abstract

To provide a sea anchor for small ship with an easy handling, capable of quickly setting an umbrella opening and of withdrawing the umbrella folding, and with a large braking force.SOLUTION: A sea anchor A of the present invention has a planar and nearly-circular resistive element 1, a flat leaf spring 2 with a flat cross-section made of an elastic material, which is attached to an outer periphery of the opening of this resistive element 1, three tensioned cables 3, 4, 5 connected to the positions arranged at uniform interval on the opening, and a tow rope 6 one end of which is connected to the tensioned ropes 3, 4, 5 and other end of which is free so that it can be fixed to a boat.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sea anchor used for small ships such as boats and kayaks.

  It is known that when a small ship stops at sea, the hull is unintentionally changed in direction or drifted due to the influence of wind or waves, so that it is braked by a sea anchor.

  A so-called parachute type is known as such a sea anchor (see, for example, Patent Document 1).

  Such a sea anchor is provided with a wire made of iron or stainless steel at the opening edge of a tongari hat-like parachute part, and provided with a locking part at the projecting end part, and the parachute and rope are provided at the opening part of the parachute part. A sea anchor main body having a locking band to be connected is provided, and when the sea anchor main body is dropped at a desired location in the sea, the parachute part opens automatically and instantaneously and sinks into the sea due to the weight of the wire, thereby determining the hull. It stops at the position.

Japanese Patent Laid-Open No. 2002-2587

  Such a sea anchor cannot be stored smaller than the diameter of the opening because it holds the resistor opening in advance, and if the diameter of the opening is increased for the purpose of increasing braking. There was a problem such as taking a place for storage.

  The present invention is intended to solve the problems of such a conventional structure, is easy to fold and store, can be opened instantly when used, and can be easily folded small when not in use. The purpose is to realize a sea anchor.

  The sea anchor of the present invention includes a flat, substantially circular resistor, a flat plate spring having a flat cross section using an elastic material attached to the outer periphery of the opening of the resistor, and the opening. It has three tension cords coupled to positions arranged at equal intervals in the section, and a towline that has one end coupled to the tension cord and the other end being a free end so that it can be fixed to the port.

  The sea anchor of the present invention is divided into three equal parts by converging the point connected to the opening of the tension line when changing from an opened umbrella state at the time of use to a stored state at the time of non-use. By folding with, it can be stored in an area of 1/9 when not in use. Moreover, when it is used from the time of non-use, it will become a form which can be automatically opened and used by canceling | stacking a lamination | stacking state.

  Moreover, since the member which hold | maintains the shape with which the opening was mounted | worn is not a circular thing in cross sections, such as a wire, but a cross section is flat, a shape can be stabilized rather than the thing of a wire.

  It is a perspective view which shows embodiment of this invention.   It is explanatory drawing which shows the usage method same as the above.   It is explanatory drawing which shows a form change same as the above.   It is explanatory drawing which shows other embodiment same as the above.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1-4 explaining embodiment which concerns on this invention, sea anchor A is a metal on the outer periphery of the substantially circular resistor 1 which made the raw material of thin planar cloth which has flexibility and durability, such as nylon, Alternatively, a flat plate spring 2 having a flat cross section having elasticity, such as glass fiber, is attached, and three strong string-like tension cords 3 are provided at equally spaced positions on the outer periphery of the resistor 1. 1 to 5, and the other ends of the tension lines 3 to 5 are connected to one end of a strong string-shaped pulling rope 6. The other end of the draw net 6 can be fixed to the boat 7. It has become a free end.

  That is, as shown in the overall view of FIG. 1 (a) and the enlarged view of FIG. 1 (b), the sea anchor A constitutes a so-called parachute type in use.

  As shown in FIG. 2, the sea anchor A is used to brake the boat 7 by fixing the free end of the towline 6 to the boat 7 and dropping it into the sea.

  Next, the handling method from when the sea anchor A is used to when it is not used will be described. The resistor 1 having the diameter R in the opened state (when used) shown in FIG. Thus, the resistor 1 has the connecting portion of the tension lines 3 to 5 and the tow rope 6 with one hand (for example, the left hand) and bundles the one ends of the tension lines 3 to 5 with the other hand (for example, the right hand). As shown in (c), the right hand is left as it is and the left hand is pulled, so that the connecting portions of the cords 3 to 5 and the resistor 1 become one convergence point.

  In FIG. 3 (c), the resistor 1 is composed of three substantially circular divided circle portions 1a, 1b, 1c each having a diameter r (about one third of R) and positioned below. Are divided into circular portions 1a, 1b, 1c in the counterclockwise direction.

  As shown in FIG. 3 (d), while holding the convergent portion with the right hand, the left hand rotates one end of the two leaf springs on the outer periphery of one divided circle portion 1a by 180 degrees in the direction of the divided circle portion 1c. According to the twist of the leaf spring 2, the divided circle portion 1b located on the right side of the divided circle portion 1a is also rotated by 180 degrees in the direction of the divided circle portion 1a, and the divided circle portions 1a and 1b are both turned outward. Folded flat.

  When the divided circle portion 1c is folded forward toward the divided circle portion 1a as shown in FIG. 3 (e), the divided circle portion 1c faces outward on the divided circle portion 1a as shown in FIG. 3 (f). Since the divided circle portion 1b is moved in the state and laterally moved to the back side of the divided circle portion 1a by the elastic force of the leaf spring 2, the divided circle portion 1c, the divided circle portion 1a, and the divided circle portion 1b It can be put together as a compact aggregate with a diameter r in order.

  In this manner, the sea anchor A can be easily folded into a small size by superimposing the divided circle portion 1a, the divided circle portion 1b, and the divided circle portion 1c that are divided into three parts, and in a folded state when not in use. Become stable.

  Moreover, in order to shift the sea anchor A from the non-use state to the use state, the resistor 1 is suspended by holding any one of the tension lines 3 to 5 from the folded state in FIG. As a result, as shown in FIG. 3A, the resistor 1 is instantly opened by the restoring force based on the elastic force of the leaf spring 2.

  FIG. 4 shows another embodiment of the sea anchor A. By installing a weight 8 at a location facing the tension line 3 of the leaf spring 2 of the above embodiment, the underwater posture of the sea anchor A is further increased. Since it is stable and the tension cord 3 is always positioned above, recovery is easy (FIG. 4 (a)).

  Further, the tension cords 4 to 5 and the towline 6 are connected by a connecting metal fitting 9, and the tensioning cord 3 is installed so as to freely pass through the connecting metal fitting 9, and is coupled to a universal metal fitting 10 that can be fixed to an arbitrary portion of the towing rope 6 Then, by making the length between the resistor 1 of the tension cord 3 and the connecting bracket 9 adjustable, the posture of the resistor 1 of the sea anchor A can be changed and the braking force can be adjusted ( FIG. 4 (b), (c)).

  As described above, the resistor 1 of the sea anchor A of the present invention has three substantially circular diameters R (FIG. 3 (a)) in use when the folds are folded, having a diameter r (about one third of R). The divided circle portions 1a, 1b, and 1c are shaped (FIG. 3 (c)), and the area of each of the divided circle portions 1a, 1b, and 1c is about 1/9 of the area of the resistor 1 in use. By overlapping the divided circular portions 1a, 1b, and 1c, the resistor 1 can be stored in an area of about one-ninth of that when not in use (FIG. 3 (f)). Moreover, since the umbrella can be opened instantly even when not in use, braking can be applied quickly.

  The present invention can be variously modified. For example, the flexibility and durability of the resistor 1 have flexibility that allows the usage method shown in FIG. 3 and durability that can withstand resistance in water. A material can be used, and the leaf spring 2 may be a material that can be used as shown in FIG.

A Sea anchor 1 Resistor 1a, 1b, 1c Divided circular part 2 Leaf spring 3-5 Tension line 6 Pull rope 7 Boat 8 Weight 9 Connecting bracket 10 Universal bracket

Claims (1)

  A flat and substantially circular resistor, a flat plate spring having a flat cross section using an elastic material attached to the outer periphery of the opening of the resistor, and an even interval in the opening A sea anchor having three tension lines coupled to the position and a pulling line having one end coupled to the tension line and the other end being a free end so that the other end can be fixed to the boat.

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