JPH03197707A - Getting on and off device for boat - Google Patents

Abstract

PURPOSE:To enable easy and safe embarkation and disembarkation by making a gondola floatable on the surface of the sea with a buoyant body attached to its bottom, and by making the embarkation and the disembarkation performed between the land and a boat with the gondola lowered from a relatively high position on the land. CONSTITUTION:A buoyant body 3 is attached to the underside of a gondola 1 and is made capable of ascending and descending by means of a cylinder, a winch or the like along a guide 2. After the gondola 1 is lowered to the surface 5 of the sea, the gondola 1 is set afloat with the buoyant body 3 with a driving force for ascending and descending set free. As the gondola 1 depends on the motion of the surface 5 of the sea, it is roughly synchronized with the motion of a boat 4, and positions of both the gondola and the boat are made relatively in the same height, making embarkation to the boat available. Thereby, embarkation to and disembarkation from the boat 4 can be made easily and safely and getting on and off the small-sized craft on a quay having no floating pier becomes possible, enabling the small-sized craft to enlarge its sphere of utility with increased maneuverability.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は岸壁や埠頭と乾舷の低いボート等小型の丹艇間
の乗降装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for getting on and off between a quay or a wharf and a small boat such as a boat with a low freeboard.

〔従来の技術〕[Conventional technology]

従来プレジャーボート等乾舷の低い小型のボートは第３
図に示すようにボートとの高低差の小さい専用の浮桟橋
を岸壁からの階段に連接した係船設備を有したマリーナ
等の場所から乗降するのが一般的である。専用設備のな
い中・大型船の離着船用の岸壁や埠頭から乗降できると
小型艇の特長が生かされるが、潮の干満等の問題が高低
差が大きすぎてそのま−では乗船が難しい、その対策と
して、第４図、第５図の様な乗降装置が考案されている
。Traditionally, small boats with low freeboard such as pleasure boats are
As shown in the figure, it is common to board and disembark from a location such as a marina, which has mooring facilities connected to a dedicated floating pier with a small height difference from the boat and stairs from the quay. The advantages of small boats can be taken advantage of if they can be boarded and disembarked from quays and piers for medium- and large-sized ships that do not have dedicated facilities, but problems such as tidal fluctuations make it difficult to board the boat. As a countermeasure against this problem, a boarding device as shown in FIGS. 4 and 5 has been devised.

即ち、第４図は岸壁から支基と支柱によって海面上にオ
ーバーハングさせて立設したガイドに沿ってゴンドラを
昇降させ、人をボートに移す乗降装置であり、第５図は
いわば第４図相当のゴンドラを起倒式にした乗降装置に
相当し、ガイド７に沿って昇降するゴンドラ１０は格納
時は仮想線で示すように陸上に倒してあり、使用時はシ
リンダ支点ピン１４を軸に回動、伸縮するシリンダ１３
を油圧によって展脹させると、起倒支点ピン８を軸にゴ
ンドラ１０は回動して図の実線の位置に起立する。That is, Fig. 4 shows a boarding and disembarking device for moving people onto a boat by raising and lowering a gondola along a guide set up overhanging the sea surface from a quay with supports and supports, and Fig. The gondola 10, which is equivalent to a similar gondola in an upright/folding type, is raised and lowered along the guide 7. When stored, the gondola 10 is laid down on land as shown by the imaginary line, and when in use, the gondola 10 is moved around the cylinder fulcrum pin 14. Cylinder 13 that rotates and expands and contracts
When the gondola 10 is expanded by hydraulic pressure, the gondola 10 rotates around the fulcrum pin 8 and stands at the position shown by the solid line in the figure.

そこで起倒防止ピン９を挿入し、ゴンドラ固定ピン１２
を抜いて、今度はシリンダ１３を縮退させると、起倒防
止ピン９が挿入されているのでゴンドラ１０は回動でき
ず、ガイド支柱７ａに押されて下降してゆき、逆にシリ
ンダ１３を展脹すると上昇してゆくよう構成されている
。Then, insert the tilting prevention pin 9 and gondola fixing pin 12.
When the gondola 10 is pulled out and the cylinder 13 is retracted, the gondola 10 cannot rotate because the anti-tilt pin 9 is inserted, and it is pushed down by the guide column 7a, causing the cylinder 13 to retract. It is constructed so that it rises when it swells.

（発明が解決しようとする諜Ｂ） 上記従来の舟艇用乗降装置には解決すべき次の課題があ
った。即ち、第４図、第５図の様な従来の乗降装置を使
用した場合、海面が波静かな場合はよいが、波が荒い場
合、ボートはそのために著しく揺れるので固定されたゴ
ンドラ等の乗降装置から揺れる小型艇に乗り移ることは
困難であると共に危険である。(Intelligence B to be Solved by the Invention) The above-mentioned conventional boat getting on and off device had the following problems to be solved. In other words, when using the conventional boarding and disembarkation equipment as shown in Figures 4 and 5, it works well when the sea surface is calm, but when the waves are rough, the boat shakes considerably, making it difficult to board and disembark from fixed gondolas, etc. Transferring from the equipment to a swinging small boat is difficult and dangerous.

［課題を解決するための手段］ 本発明は上記課題の解決手段として、海面より比較的高
い陸上からゴンドラを昇降させて海上のうね面に浮揚可
能な浮力体を具備してなることを特徴とする舟艇用乗降
装置を提供しようとするものである。[Means for Solving the Problems] As a means for solving the above-mentioned problems, the present invention is characterized by comprising a buoyant body capable of floating on a ridge on the sea by raising and lowering a gondola from land that is relatively higher than the sea level. The purpose of the present invention is to provide a boat getting on and off device for use in boats.

〔作用〕[Effect]

本発明は上記のように構成されるので次の作用を有する
。即ち、舟艇用乗降装置であるゴンドラの底部に浮力体
を設けるのでゴンドラが海面に浮揚でき、舟艇と共に波
に揺動し、舟艇とゴンドラとの間に常に一定の相対的高
低差が保たれるため、人の乗降が容易かつ安全に行なわ
れる。Since the present invention is configured as described above, it has the following effects. In other words, since a buoyant body is provided at the bottom of the gondola, which is a device for getting on and off boats, the gondola can float on the sea surface, rocking along with the boat in the waves, and always maintaining a constant relative height difference between the boat and the gondola. Therefore, people can get on and off the train easily and safely.

（実施例〕 本発明の第１実施例を第１図により説明する。(Example〕 A first embodiment of the present invention will be described with reference to FIG.

図は本実施例の側面図で、図において、ゴンドラ１をシ
リンダ、ウィンチ等によりガイド２に沿って昇降させる
ようにしたものでゴンドラ１の下部に浮力体３を装着す
る。実線の上昇位置からゴンドラ１を下降させて、２点
鎖線の様にゴンドラ１を海面５に降ろす。その状態で駆
動力をフリーにするとゴンドラ１は浮力体３により海面
に浮く。The figure is a side view of this embodiment. In the figure, a gondola 1 is moved up and down along a guide 2 by a cylinder, a winch, etc., and a buoyant body 3 is attached to the lower part of the gondola 1. The gondola 1 is lowered from the ascending position indicated by the solid line, and the gondola 1 is lowered to the sea surface 5 as indicated by the two-dot chain line. When the driving force is released in this state, the gondola 1 floats on the sea surface due to the buoyant body 3.

この結果、ゴンドラ１は海面５に動きを委ね、ボート４
の動きには一同調することになる。従って、ゴンドラ１
とボート４は相対的に常に同じ高低差を保ち、ゴンドラ
１からボート４に移乗するのに何らの困難もなく、危険
も生じない。As a result, gondola 1 leaves its movement to sea level 5, and boat 4
Everyone will be in sync with his movements. Therefore, gondola 1
and boat 4 always maintain the same relative height difference, and there is no difficulty or danger in transferring from gondola 1 to boat 4.

次に本発明の第２実施例について第２図により説明する
。第２図は起倒式のゴンドラに浮力体を装着した例で、
従来例の第５図と同様の構成部材には同符号を付し説明
を省略する。Next, a second embodiment of the present invention will be described with reference to FIG. Figure 2 shows an example of a buoyant body attached to a tilting gondola.
Components similar to those in FIG. 5 of the conventional example are designated by the same reference numerals and explanations thereof will be omitted.

図においてゴンドラ１０の底部には浮力体３ａが装着さ
れており、第２図の実線位置からゴンドラ１０を仮想線
近傍の位置迄、シリンダ１３を縮退させて下降させ、浮
力体３ａが海面５に浮いたところで、シリンダ１３の油
圧をフリーにするとゴンドラ１０は海上に浮き、ボート
４と共に相対高低差なく揺動する。従って第１実施例の
場合と同様、ゴンドラｌＯ上の人は何らの困難も危険も
な（ボート４に移ることができる。In the figure, a buoyant body 3a is attached to the bottom of the gondola 10, and the cylinder 13 is retracted to lower the gondola 10 from the solid line position in FIG. When the gondola 10 floats, when the hydraulic pressure of the cylinder 13 is released, the gondola 10 floats on the sea and swings together with the boat 4 without any relative height difference. Therefore, as in the first embodiment, the persons on the gondola IO can transfer to the boat 4 without any difficulty or danger.

以上、第１．第２実施例に用いる浮力体３及び３ａはた
とえば水密状に形成されたポンツーン体でもよく、或は
表面に金属板を張って対損傷性を高めた硬質発泡プラス
チックでもよく、ポンツーン内に発泡プラスチックを充
填発泡させた高強度ポンツーンでもよく、浮袋体でもよ
くその他、発明の目的を逸脱しない範囲でどのような浮
力体が用いられてもよい。Above is the first part. The buoyant bodies 3 and 3a used in the second embodiment may be, for example, pontoon bodies formed in a watertight manner, or may be made of hard foamed plastic whose surface is covered with a metal plate to enhance damage resistance, and the pontoons are filled with foamed plastic. A high-strength pontoon filled with foam may be used, a floating bladder may be used, and any other buoyant body may be used without departing from the purpose of the invention.

なお、ゴンドラ１０も常にガイド２や７によってガイド
される形式に限定されるものではなく、単なる吊下げ方
式であってもよい。Note that the gondola 10 is not limited to the type in which it is always guided by the guides 2 and 7, but may also be in a simple hanging type.

以上の通り第１．第２実施例によれば、ゴンドラ１及び
１０の底部にゴンドラ１及び１０が海面に浮揚可能な浮
力体３及び３ａを設けるので、ゴンドラｌ及び１０が海
面に浮くことができ、これによりボート４と共に波によ
って揺動するので、ボート４とゴンドラ１及び１０との
間に新たな相対高低差が住ぜず、人は安全にかつ、困難
を伴うことなくゴンドラ１及び１０からボート４へ、あ
るいはボート４からゴンドラｌ及び１０へ移動すること
ができるという利点がある。As mentioned above, 1st. According to the second embodiment, since the buoyant bodies 3 and 3a are provided at the bottoms of the gondolas 1 and 10 so that the gondolas 1 and 10 can float on the sea surface, the gondolas 1 and 10 can float on the sea surface, and thereby the boat 4 As a result, there is no new relative height difference between boat 4 and gondolas 1 and 10, and people can safely and without difficulty move from gondolas 1 and 10 to boat 4 or The advantage is that it is possible to move from boat 4 to gondolas l and 10.

〔発明の効果〕 本発明は上記のように構成されるので次の効果を有する
。[Effects of the Invention] Since the present invention is configured as described above, it has the following effects.

即ち、舟艇乗降装置のゴンドラを浮力体によって海面に
浮かすことによりゴンドラとボートの動きとが同調する
ため容易かつ安全にゴンドラ、ボート間を乗降できる。That is, by floating the gondola of the boat boarding/disembarking device on the sea surface using a buoyant body, the movements of the gondola and the boat are synchronized, so that it is possible to easily and safely get on and off between the gondola and the boat.

また、これにより浮き桟橋のない岸壁で小型艇への乗降
が可能となり、小型層の活用の範囲が拡大され、かつそ
の機動性が生かせる。This also makes it possible to board and disembark small boats on a quay without a floating pier, expanding the scope of use of small boats and taking advantage of their maneuverability.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の第１実施例に係る舟艇用乗降装置の側
面図、第２図は本発明の第２実施例に係る舟艇用乗降装
置の側面図、第３図は浮き桟橋を利用した従来例の側面
図、第４図及び第５図は浮き桟橋のない岸壁での従来の
乗降装置の二つの例を示した各側面図である。 １・・・ゴンドラ　　　　　　２・・・ガイド３．３ａ
・・・浮力体、　　　　　４・・・ボート。 ５・・・海面、　　　　　　　７・・・ガイド１０・・
・ゴンドラ、１３・・・シリンダ。Fig. 1 is a side view of a boat getting on/off device according to a first embodiment of the present invention, Fig. 2 is a side view of a boat getting on/off device according to a second embodiment of the present invention, and Fig. 3 is a side view of a boat getting on/off device according to a second embodiment of the present invention. FIGS. 4 and 5 are side views showing two examples of conventional boarding and alighting devices for use on a quay without a floating pier. 1...Gondola 2...Guide 3.3a
...buoyant body, 4...boat. 5...Sea surface, 7...Guide 10...
・Gondola, 13... cylinder.

Claims (1)

【特許請求の範囲】[Claims] 　海面より比較的高い陸上からゴンドラを昇降させて海
上の舟艇と陸上との間を人を乗降させる舟艇用乗降装置
において、上記ゴンドラ底部に設けられたゴンドラを海
面に浮揚可能な浮力体を具備してなることを特徴とする
舟艇用乗降装置。A boat boarding and dismounting device for lifting and lowering a gondola from land relatively higher than the sea level to allow people to get on and off between the boat at sea and the land, comprising a buoyant body installed at the bottom of the gondola and capable of floating the gondola on the sea surface. A boarding and dismounting device for boats, which is characterized by the following: