JP3068422U - Boat davit cradle head structure - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] To easily mount a boat on a cradle and securely mount the boat. SOLUTION: The bow and the stern of the boat are detachably attached to the cradle head at the upper end of the arm by a launching strope and the boat side is in contact with the cradle main body. The cradle head 18 at the upper end of the arm has an elongated head 20 that tapers in the direction of the tip 20a, and the tip of the rope 7 at the tip. 8, is connected to the cradle head via a curved connecting portion 21 at the lower end 20 b, and has a ring-shaped locking hook 19 at the tip of the launching strap 17. The boat is attached to the cradle head portion 18 at the upper end of the arm via the launching strap 17 by fitting the locking hook into the curved connecting portion at the lower end of the head.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to the cradle head structure of a boat davit for lowering various boats such as lifeboats installed on the deck of a ship out of the stowage position, and in particular, it is easy to attach the boat to the cradle. As well as a cradle head structure for a boat davit that is securely mounted.

[0002]

[Prior art]

 In general, ships have various types of boats, such as lifeboats, security boats, patrol boats, etc., stored on the deck, which are sent out from the deck by boat davit to the sea surface outside the boat as necessary. Provided for the intended use.

As shown in FIG. 1, a boat davit of this type is usually composed of a pair of struts 4 for supporting a boat 3 fixedly erected on a deck 2 of a ship 1 and a rope operating winch 6. The rope 3 is extended by a winch 6 via a pulley 5 at the top of the boat 4 and extended freely so as to be rolled up. The rope 3 is connected to the tip 8 of the rope 7 and moves along a pair of supports 4 by operating the rope 7. And a cradle 10 that abuts the ship side 9 of the ship.

The cradle 10 has a pair of cradle bodies 12 having a series of rollers 11, 11... 11 held by a roller support plate 15, and an auxiliary roller 14 extending upward from the cradle bodies 12. 11 and the auxiliary roller 14 are rolled along the pair of columns 4 so that the boat 3 is brought into contact with the cradle body 12 while being engaged with the deck. 2 to outboard, or from outboard onto deck 2.

The upper end of the arm 13 is provided with a cradle head 18 connected to the tip 8 of the rope 7. The boat 3 is detachably attached to the cradle head 18 at the upper end of the arm 13 at two locations near the bow and stern thereof (for example, the fixture 16 shown in FIG. 1) via a launching strap 17 having a predetermined length. The cradle 10 is mounted so as to abut the cradle body 12, and moves along with the pair of supports 4 from the deck 2 to the outboard or from the outboard to the deck 2 as the cradle 10 moves.

Although not shown, the cradle head at the upper end of the arm 13 has a substantially cylindrical short head (for example, a cylindrical head having a length of about 70 mm and a diameter of about 35 to 40 mm). 7 is connected to the front end 8 and is connected to the cradle head via a connecting portion 21 bent at the lower end. At the end of the launching strap 17, a ring-shaped locking hook 19 is provided. The locking hook 19 is fitted into the rope 7, and is dropped to the connecting portion 21 through a short cylindrical head to be connected to the connecting portion 21. Inset.

[0007]

[Problems to be solved by the invention]

 However, in the above-mentioned known structure, the head connected to the tip 8 of the rope 7 has a short structure that is substantially cylindrical. Therefore, in order to attach the boat 3 to the tip of the arm 13 of the cradle 10 via the launching strap 17, even if the locking hook 19 is fitted to the rope 7, the hook 19 can be easily attached to the short head having a cylindrical ring portion. In many cases, it does not fall into the connecting portion 21 through a short cylindrical head.

Therefore, an object of the present invention is to provide a boat davit cradle head structure that not only facilitates the operation of mounting the boat on the cradle, but also secures the mounting and improves the above-mentioned disadvantages of the known art. It is in.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a pair of posts for supporting a boat fixed on the deck of a ship, and a rope extending from a rope operating winch via a pulley at the tip of the post, A cradle that is connected to the tip of the rope and moves along a pair of pillars by operation of the rope; the cradle includes a pair of cradle bodies having a series of rollers and abutting on the boat side of the boat; And a cradle head portion connected to the tip of the rope at the upper end of the arm. The boat has a launching rope having a predetermined length at two locations near its bow and stern. To the cradle head at the upper end of the arm so that it can be detached and the ship side comes into contact with the cradle body. In a boat davit that moves from deck to outboard along a pair of struts or from outboard to the deck with movement, the cradle head at the upper end of the arm has an elongated bed tapered in the tip direction. The distal end portion is connected to the rope distal end, the lower end portion is connected to the cradle head via a curved connecting portion, and the launching rope distal end is provided with a ring-shaped locking hook, The boat is attached to the cradle head at the upper end of the arm via a launching strap by fitting the locking hook into a curved connecting portion at the lower end of the head.

[0010]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing a boat davit according to the present invention and an operation state thereof, FIG. 2 is a plan view of the boat davit according to the present invention, and FIG. 3 is a plan view of the upper end of a cradle arm. It is a top view showing such a cradle head part.

In FIG. 1, a boat davit A according to the present invention includes a pair of pillars 4 for supporting a boat 3, which are erected on a deck 2 of a ship 1 and fixed vertically and support a boat 3. A rope 7 which is extended or retracted from the rope operating winch 6 via a pulley 5 at the top of the support 4 by operating the winch 6 or retractable, and connected to the tip 8 of the rope 7. The cradle 10 is configured to include a cradle 10 that moves along the column 4 and abuts on the boat side 9 of the boat 3.

The cradle 10 includes a pair of cradle bodies 12 having a series of rollers 11, 11... And an arm 13 provided with an auxiliary roller 14 on the side wall of the boat 3. The roller 3 is brought into contact with the cradle body 12 along a pair of columns 14 by the rollers 11, 11,... While carrying, move out of deck 2 or onto deck 2 from outside.

The upper end of the arm 13 is provided with a cradle head 18 connected to the tip 8 of the rope 7. The boat 3 is detachably attached to the cradle head 18 at the upper end of the arm 13 via a launching strap 17 of a predetermined length at two locations near the bow and stern (for example, the attachment 16 shown in FIG. 1). And the boat side 9 of the boat 3 is mounted so as to abut the cradle body 12. With the movement of the cradle 10, the boat 3 moves out of the deck 2 along the pair of struts 4 or out of the boat onto the deck 2. Moving.

The feature of the present invention is that the cradle head 18 at the upper end of the arm 13 has an elongated head 20 tapered in the distal direction as shown in FIG. At the lower end 20b, and is connected to the cradle head 18 via a curved connecting portion 21.

The end of the launching strap 17 is provided with a ring-shaped locking hook 19, and the locking hook 19 is fitted into the curved connecting portion 21 of the lower end 20 b of the head 20, so that the boat 3 It is attached to a cradle head 18 at the upper end of the arm 13 via a rope 17.

As shown in FIG. 3, the engagement hook 19 is fitted to the connecting portion 21 by fitting the engagement hook 19 to the rope 7. As a result, the locking hook 19 of the rope 7 eventually falls from the tapered tip 20a of the head 20 to the connecting portion 21 through the lower end 20b of the head 20, and is fitted into the connecting portion 21.

[0018]

According to the cradle head structure of the boat davit according to the present invention having the above-described configuration, the cradle head portion 18 has the elongated head 20 tapered in the distal direction. That is, the head 20 has a tapered distal end 20a, a diameter that expands in a tapered shape toward the lower end 20b, and a tapered elongated cylindrical shape. More specifically, for example, the length is about 120 mm, the diameter of the tip 20a is about 10 mm, and the diameter of the lower part 20b is about 35 to 40 mm.

Therefore, when the crew attaches one end of the launching strap 17 to the attachment 16 of the boat 3 and then attaches the hook 19 at the other end to the cradle head 18 from the boat, the hook 19 The hooks 19 are easily and automatically fitted into the tapered tip 20a of the head 20 and pass through the lower end 20b of the head 20. It easily falls to the curved connecting portion 21 and is attached to the connecting portion 21.

Therefore, in the present invention, not only the operation of attaching the boat to the cradle through the launching strap is easy, but also the attachment is secure and practically useful.

[Brief description of the drawings]

FIG. 1 is a side view showing a boat davit according to the present invention and an operation state thereof.

FIG. 2 is a plan view of the boat davit according to the present invention.

FIG. 3 is a plan view showing a cradle head portion according to the present invention at the upper end of the arm of the cradle.

[Explanation of symbols]

 A Boat davit 3 Boat 4 Prop 7 Rope 8 Rope tip 10 Cradle 13 Arm 17 Launching strap 18 Cradle head 19 Locking hook 20 Head 20a tip 20b lower end 21 Curved connection

Claims (2)

[Utility model registration claims] 1. A pair of pillars for supporting a boat fixed on the deck of a ship, a rope extending from a rope operating winch via a pulley at the tip of the pillar, and connected to the tip of the rope to operate the rope. A cradle that moves along a pair of struts, the cradle includes a pair of cradle bodies having a series of rollers and abutting on the boat side of the boat, and an arm extending upward from the cradle bodies. The upper end of the arm is provided with a cradle head portion connected to the tip of the rope, and the boat is detachably attached to the cradle head portion at the upper end of the arm by launching stroops of a predetermined length at two locations near the bow and stern, and Attached so that the ship side comes into contact with the cradle body, and as the cradle moves, In a boat davit that moves from the boat to the outboard or from the outboard to the deck, the cradle head at the upper end of the arm has an elongated head that tapers in the tip direction, and is connected to the tip of the rope at this tip. The lower end portion is connected to the cradle head portion via a curved connection portion, and the tip of the launching strap is provided with a ring-shaped locking hook,
A cradle head structure for a boat davit, wherein the boat is attached to the cradle head at the upper end of the arm via a launching strap by fitting the locking hook into a curved connecting portion at the lower end of the head. 2. The boat davit cradle head structure according to claim 1, wherein the locking hook is fitted into the rope, dropped into the connecting portion through the head, and fitted.