JPH078675B2 - Hydraulic tilt device for outboard propulsion - Google Patents
Hydraulic tilt device for outboard propulsionInfo
- Publication number
- JPH078675B2 JPH078675B2 JP60221989A JP22198985A JPH078675B2 JP H078675 B2 JPH078675 B2 JP H078675B2 JP 60221989 A JP60221989 A JP 60221989A JP 22198985 A JP22198985 A JP 22198985A JP H078675 B2 JPH078675 B2 JP H078675B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- hydraulic
- outboard propulsion
- water
- tilt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は船外機や船内機に連結される駆動ユニツトな
どの船外推進機に関するもので、特に船外推進機を水中
から水上へ引き上げあるいは水中へ降下させる油圧式チ
ルト装置の改良に関するものである。Description: TECHNICAL FIELD The present invention relates to an outboard propulsion device such as a drive unit connected to an outboard motor or an outboard motor, and in particular, pulling the outboard propulsion device from underwater to above water. Alternatively, the present invention relates to an improvement of a hydraulic tilt device for lowering the water.
船外機や船内機の水中と水上との昇降に油圧シリンダを
用いることは公知である。一般にこのようなものでは速
度制御レバーのグリツプに設けた昇降スイツチを選択的
に押圧し、油圧ポンプを正転あるいは逆転させているの
で、チルトシリンダと、トリムシリンダとは並列に接続
されており、その結果、船外推進機を水上へ引き上げる
べくチルトシリンダへ給油の動作を行なうとトリムシリ
ンダにも給油され、ピストンロツドが外方へ突出してし
まうので、そのままに放置するときはピストンロツドに
「ふじつぼ」その他の水中生物が付着する不具合があ
る。従来このような不具合を解消すべく、チルトシリン
ダを伸長させて船外推進機を水中へ引き上げた後、トリ
ムシリンダに逆方向の圧油を供給してロツドを退去させ
る技術が知られている(例えば特開昭60−104492号公
報)。It is known to use hydraulic cylinders for raising and lowering outboard motors and inboard motors in and out of water. Generally, in such a device, the lifting switch provided on the grip of the speed control lever is selectively pressed to normally or reversely rotate the hydraulic pump, so that the tilt cylinder and the trim cylinder are connected in parallel, As a result, when the tilt cylinder is refueled to raise the outboard propulsion device above the water, the trim cylinder is also refueled, and the piston rod projects outwards. There is a problem that other aquatic organisms attach. Conventionally, in order to solve such a problem, there is known a technique in which a tilt cylinder is extended to pull up an outboard propulsion device into water, and then pressure oil in a reverse direction is supplied to a trim cylinder to withdraw a rod ( For example, JP-A-60-104492).
然しながら、そのようなものでは油圧ポンプを逆転させ
ることによつてトリムロツドの退去を行なつているの
で、操作に長時間を要する不具合がある。However, in such a device, since the trim rod is retreated by reversing the hydraulic pump, there is a problem that it takes a long time to operate.
この発明は、従来手動で行なつていた上記船外推進機の
引き上げ操作と引き続くロツドの退去操作とを自動的に
行なうことを目的としたもので、船尾に設けた船外推進
機を水中へ降ろした位置と水上へ引上げた位置とに傾動
させる油圧式チルトシリンダ機構と、前記船外推進機を
水中へ降ろした状態で船体に対する傾き角度を調節する
油圧式トリムシリンダ機構と、ポンプの回転方向が正逆
に変えられることにより作動油の吐出油路および戻り油
路が切り換えられる作動油供給装置とを備え、前記チル
トシリンダ機構の油圧シリンダにおけるピストンによっ
て画成された両オイル室を、前記作動油供給装置の吐出
油路、戻り油路に連通させるとともに、前記両オイル室
のうち作動油が供給されることにより船外推進機が引き
上げられる方のオイル室を、トリムシリンダ機構用油圧
シリンダにおけるピストンによって画成された2つのオ
イル室のうち作動油が供給されることにより船外推進機
が引き上げ側に傾く方のオイル室に油路を介して連通さ
せ、このトリムシリンダ機構用油圧シリンダの他方のオ
イル室を、作動油の流れ方向が作動油タンク側へ向けら
れたリリーフ弁を有する油路を介して作動油タンクに連
通させてなり、トリムシリンダ機構用油圧シリンダに連
通された前記2つの油路に、船外推進機が水上へ引き上
げられたことを検出するセンサの検出信号が入力されて
いないときにはこれらの油路の連通先を前記通りとし、
前記センサの検出信号が入力されたときには、作動油が
供給されることにより船外推進機が引き上げ側に傾く方
のオイル室を作動油タンクに至る油路に連通させかつ他
方のオイル室をチルトシリンダ機構用油圧シリンダに至
る油路に連通させる4ポート切換弁を介装したものであ
る。The purpose of this invention is to automatically perform the pulling-up operation of the above-mentioned outboard propulsion unit and the subsequent rod leaving operation which have been manually performed, and the outboard propulsion unit provided at the stern is put underwater. A hydraulic tilt cylinder mechanism that tilts between a lowered position and a raised position above the water, a hydraulic trim cylinder mechanism that adjusts the tilt angle with respect to the hull when the outboard propulsion device is lowered into the water, and the rotation direction of the pump. And a return oil passage for switching the operation oil by switching the oil supply chamber and the return oil passage, and both oil chambers defined by pistons in the hydraulic cylinder of the tilt cylinder mechanism One of the two oil chambers, which is connected to the discharge oil passage and the return oil passage of the oil supply device, and which has the outboard propulsion device pulled up by supplying the working oil, is turned on. Of the two oil chambers defined by the piston in the hydraulic cylinder for the trim cylinder mechanism to supply the hydraulic oil to the oil chamber in which the outboard propulsion machine leans toward the pull-up side through the oil passage. The trim cylinder mechanism hydraulic cylinder has the other oil chamber communicated with the hydraulic oil tank via an oil passage having a relief valve in which the flow direction of the hydraulic oil is directed toward the hydraulic oil tank. When the detection signal of the sensor for detecting that the outboard propulsion machine is pulled up to the water is not input to the two oil passages that are communicated with the hydraulic cylinder for the cylinder mechanism, the communication destinations of these oil passages are as described above. age,
When the detection signal of the sensor is input, hydraulic oil is supplied so that the oil chamber in which the outboard propulsion machine leans toward the pulling up side communicates with the oil passage leading to the hydraulic oil tank and the other oil chamber tilts. A four-port switching valve that communicates with an oil passage leading to a hydraulic cylinder for a cylinder mechanism is provided.
以下、図示の実施例によつてこの発明を説明すると、図
中、1は船体であり、その後尾にはブラケツト2が分解
可能に固着され、それにはスクリユー3aを備えた船外推
進機3たる船外機の本体がピン4により回動自在に軸支
されている。すなわち、船外推進機3の上部とブラケツ
ト2との間はチルトシリンダ6によつて結合され、その
伸長によつて船外推進機3を水上へ引き上げ、収縮によ
つて水中へ降下させている。Hereinafter, the present invention will be described with reference to the illustrated embodiment. In the drawing, reference numeral 1 is a hull, and a bracket 2 is fixed to the rear portion of the hull so that the bracket 2 can be disassembled. The main body of the outboard motor is rotatably supported by a pin 4. That is, the upper portion of the outboard propulsion device 3 and the bracket 2 are connected by the tilt cylinder 6, and the extension thereof raises the outboard propulsion device 3 above the water, and the contraction causes it to descend into the water. .
チルトシリンダ6は油圧シリンダ6aと油圧シリンダ内に
一側へロツド6bを突設したピストン6cが摺動自在に嵌合
され、前記油圧シリンダ6aが船外推進機3へ、またロツ
ド6bがブラケツト2へそれぞれ回動可能に連結されてい
る。油圧シリンダ6a内はピストン6cにより、ロツド6b側
に位置する上室6dとその裏面の下室6eとに区画されてい
る。The tilt cylinder 6 is slidably fitted with a hydraulic cylinder 6a and a piston 6c having a rod 6b projecting to one side in the hydraulic cylinder. The hydraulic cylinder 6a is connected to the outboard propulsion unit 3 and the rod 6b is connected to the bracket 2. Are rotatably connected to each other. The inside of the hydraulic cylinder 6a is partitioned by a piston 6c into an upper chamber 6d located on the rod 6b side and a lower chamber 6e on the rear surface thereof.
7はブラケツト2上に固設されたトリムシリンダであ
り、互いに並列接続された2個一対の油圧シリンダから
なつている。トリムシリンダ7の構成は上記チルトシリ
ンダ6と異ならず、油圧シリンダ7aとそれに嵌合された
ピストン7cおよびピストン7cの一側に突設されたロツド
7bとからなり、ロツド7bの外端は油圧シリンダ7aの外端
を貫き、その先端で船外推進機3の前側を支承してスク
リユー3aの推力を船体へ伝達すると共に、船体1に対す
る船外機の本体3の取付角を調節するものである。油圧
シリンダ7a内はピストン7cにより、ロツド7b側に位置す
る上室7dとその裏面の下室7eとに区画されている。Reference numeral 7 is a trim cylinder fixedly mounted on the bracket 2, and is composed of a pair of two hydraulic cylinders connected in parallel with each other. The structure of the trim cylinder 7 is not different from that of the tilt cylinder 6, and the hydraulic cylinder 7a, the piston 7c fitted to the hydraulic cylinder 7a, and the rod protruding from one side of the piston 7c.
7b, the outer end of the rod 7b penetrates the outer end of the hydraulic cylinder 7a, the front end of which supports the front side of the outboard propulsion unit 3 to transmit the thrust of the screw 3a to the hull and to This is to adjust the mounting angle of the main body 3 of the machine. The inside of the hydraulic cylinder 7a is partitioned by a piston 7c into an upper chamber 7d located on the rod 7b side and a lower chamber 7e on the rear surface thereof.
8は回転方向の変更によつて吐出口と吸入口とが交代す
るように構成した回転形ポンプであり、電動機によつて
正逆方向へ駆動される。すなわち、ポンプ8は正転する
とき第1ポート8aが吐出口となり第2ポート8bが吸入口
となる。逆転するとき第2ポート8bが吐出口となり第1
ポート8aが吸入口となる。9はこのポンプ8の両ポート
8a,8bに連結された平衡弁であり、平衡弁9はシリンダ9
aとそれに遊合するフリーピストン9bおよびシリンダ9a
の両端を閉じる逆止弁9c,9cとを有する。9fは逆止弁9c
の弁体を弁座から押しはなし、逆止弁9cを常開する突子
である。ポンプ8はフリーピストン9bによつて区画され
た上室9dと下室9eとに通じている。10は作動油のタンク
である。Reference numeral 8 is a rotary pump configured such that the discharge port and the suction port are changed by changing the rotation direction, and is driven in the forward and reverse directions by an electric motor. That is, when the pump 8 rotates in the normal direction, the first port 8a becomes the discharge port and the second port 8b becomes the suction port. When reversing, the second port 8b becomes the discharge port and the first
Port 8a serves as an inlet. 9 are both ports of this pump 8
8a, 8b is a balance valve connected to the balance valve 9 is a cylinder 9
a and free piston 9b and cylinder 9a that play with it
And check valves 9c and 9c for closing both ends of the. 9f is a check valve 9c
Is a protrusion that pushes the valve body of the above from the valve seat and normally opens the check valve 9c. The pump 8 communicates with an upper chamber 9d and a lower chamber 9e which are partitioned by a free piston 9b. 10 is a hydraulic oil tank.
次に、これらの油圧機器を接続する油路について説明す
る。ポンプ8の第1ポート8aには平衡弁9を通してチル
トシリンダ6の下室6eへ接続される第1油路12が接続さ
れ、第2ポート8bには同様にチルドシリンダ6の上室6d
へ接続される第2油路14が接続されている。Next, an oil passage connecting these hydraulic devices will be described. A first oil passage 12 connected to the lower chamber 6e of the tilt cylinder 6 through a balance valve 9 is connected to the first port 8a of the pump 8, and the upper chamber 6d of the chilled cylinder 6 is similarly connected to the second port 8b.
The second oil passage 14 connected to the is connected.
第1油路12は途中で分岐され、第1分岐路13を経てトリ
ムシリンダ7に接続されている。すなわち、トリムシリ
ンダ7の上室7dと下室7eとは油路を正逆に切換える切換
弁16の一方のポートに接続されており、切換弁16の他方
のポートは前記第1分岐路13と作動油のタンク10へ接続
される還流油路18とに接続されている。切換弁16はソレ
ノイド弁であり、チルトシリンダ6の作動終端を検出す
るセンサ20から船外推進機3が水上へ引き上げられたこ
とを検出する検出信号が発せられたとき、それによつて
正逆が切換えられる。The first oil passage 12 is branched on the way, and is connected to the trim cylinder 7 via the first branch passage 13. That is, the upper chamber 7d and the lower chamber 7e of the trim cylinder 7 are connected to one port of the switching valve 16 that switches the oil passage between the forward and reverse directions, and the other port of the switching valve 16 is connected to the first branch passage 13 as described above. It is connected to a return oil passage 18 connected to the hydraulic oil tank 10. The switching valve 16 is a solenoid valve, and when a detection signal for detecting that the outboard propulsion device 3 has been pulled up above the water is issued from the sensor 20 for detecting the operation end of the tilt cylinder 6, the forward / reverse direction is thereby changed. Can be switched.
なお、センサ20の態様は種々考慮される。例えば、水上
へ引き上げられた船外機の本体3を値接に感知する検出
スイツチ20aとして、船外推進機3を水上へ係止するた
めに船体へ枢支された突支い棒(図示してない)が作動
位置へ回動されたことを検知する検出スイツチとして、
更には、図中、仮想線で示すように船外推進機3を水上
へ係止するため第2油路14に介装したロツク弁24が閉止
されたことを検出する検出スイツチ20bなどである。こ
れらの検出スイツチは各独立して使用されあるいは併用
されることもあるが、この発明とは直接的な関係はな
い。26,34,36は所定の圧力で開弁するリリーフ弁で、そ
れぞれ還流油路18と第2油路14、第1油路12に設けられ
ている。28,30,32は共に逆止弁であり、それぞれ還流油
路18、第1油路12および第2油路14に設けられ、作動油
のタンク10からチルトシリンダ6、トリムシリンダ7方
向への流動のみが許容される。Various aspects of the sensor 20 are considered. For example, as a detection switch 20a that senses the main body 3 of the outboard motor pulled up above the water in the price contact, a supporting rod pivotally supported on the hull for locking the outboard propulsion device 3 above the water (illustration shown). Is a detection switch that detects that it has been rotated to the operating position.
Further, as shown by a phantom line in the drawing, there is a detection switch 20b or the like for detecting that the lock valve 24 interposed in the second oil passage 14 for locking the outboard propulsion device 3 on the water is closed. . These detection switches may be independently used or used in combination, but they have no direct relation to the present invention. Reference numerals 26, 34, and 36 are relief valves that open at a predetermined pressure, and are provided in the return oil passage 18, the second oil passage 14, and the first oil passage 12, respectively. Reference numerals 28, 30, 32 are all check valves, which are provided in the return oil passage 18, the first oil passage 12 and the second oil passage 14, respectively, from the tank 10 of hydraulic oil toward the tilt cylinder 6 and the trim cylinder 7. Only flow is allowed.
次に、この実施例の作動を説明する。まず、水上に係止
された船外推進機3を水中へ降ろして航走に入るには、
突支い棒を外しあるいはロツク弁24を開いた後、ポンプ
8を逆転させると第2ポート8bから第1油路14を経て平
衡弁9の下室9eへ圧油が給送され、フリーピストン9bが
上側へ移動して突子9fが上側の逆止弁9cを常開する。よ
つて、圧油は下側の逆止弁9cを経て、チルトシリンダ6
の上室6dへ給送され、ピストン6cを全体を短縮する方向
へ移動させる一方、下室6e内の作動油は排除され、第1
油路12を逆流してポンプ8の第1ポート8aへ吸入され
る。Next, the operation of this embodiment will be described. First, in order to lower the outboard propulsion unit 3 locked on the water into the water and start sailing,
When the pump 8 is rotated in the reverse direction after the support rod is removed or the lock valve 24 is opened, the pressure oil is fed from the second port 8b to the lower chamber 9e of the balance valve 9 through the first oil passage 14 to free piston. 9b moves to the upper side, and the protrusion 9f normally opens the upper check valve 9c. Therefore, the pressure oil passes through the lower check valve 9c, and then the tilt cylinder 6
Is fed to the upper chamber 6d and moves the piston 6c in a direction to shorten the whole, while the hydraulic oil in the lower chamber 6e is removed,
It flows backward through the oil passage 12 and is sucked into the first port 8a of the pump 8.
なお、チルトシリンダ6の下室6eの容積は上室6dの容積
より大きいため作動油の排出力が過多となり、ポンプ8
がそれを吸入し切れなくなつたとき、リリーフ弁36を経
て作動油のタンク10へ還流する。このようにして、船外
推進機3が水中へ降ろされる。Since the volume of the lower chamber 6e of the tilt cylinder 6 is larger than the volume of the upper chamber 6d, the discharge force of the hydraulic oil becomes excessive and the pump 8
When it is no longer able to inhale it, it flows back to the tank 10 of hydraulic oil via the relief valve 36. In this way, the outboard propulsion device 3 is lowered into the water.
次に、これを比較的低速で浅瀬航走する場合を説明す
る。浅瀬では船外推進機3はチルトシリンダ6によつて
鉛直面より約30度傾斜する程度に傾けられその状態を維
持して航走が行なわれるが、このとき船外推進機3の最
低部は船底よりやや高くなつており、水底との緩衝が避
けられている。この浅瀬航走のための船外推進機3の傾
斜角の設定はポンプ8を正転させ第1油路12に給油して
チルトシリンダ6を適度に伸張させて行なわれる。した
がつて航走に際して発生する船外推進機3の推力はチル
トシリンダ6と前記ピン4とを介して船体へ伝導され
る。通常航走へ復帰するには、ポンプ8を逆転させ第2
油路14に給油してチルトシリンダ6を適度に短縮させ、
船外推進機3の前部をトリムロツド7bに突き当てればよ
い。このとき、トリムロツド7bの進出位置によつてトリ
ム角が設定される。Next, a case where this is carried out in a shallow water at a relatively low speed will be described. In the shallow water, the outboard propulsion unit 3 is tilted by the tilt cylinder 6 to an angle of about 30 degrees from the vertical plane and the sailing is performed while maintaining that state. At this time, the lowest part of the outboard propulsion unit 3 is It is slightly higher than the bottom of the ship, avoiding buffering with the bottom of the water. The inclination angle of the outboard propulsion unit 3 for shallow water traveling is set by rotating the pump 8 in the forward direction to supply oil to the first oil passage 12 and appropriately extending the tilt cylinder 6. Therefore, the thrust of the outboard propulsion unit 3 generated during traveling is transmitted to the hull via the tilt cylinder 6 and the pin 4. To return to normal running, reverse pump 8
Fill the oil passage 14 to shorten the tilt cylinder 6 appropriately,
The front portion of the outboard propulsion device 3 may be butted against the trim rod 7b. At this time, the trim angle is set according to the advanced position of the trim rod 7b.
一般にトリム角の設定は航走中に行なわれる。すなわ
ち、航走中にポンプ8を正転させ第1油路12に給油する
と、圧油はチルトシリンダ6とトリムシリンダ7とに同
時に作用するが、このとき船外推進機6は推進に伴う大
きな推力を受けているので、チルトシリンダ6の作動は
抑止され、2本のトリムロツド7bのみが突出して、その
量に対応する角度だけ、船外推進機3を図中の時計方向
へ回動する。Generally, the trim angle is set during the cruise. That is, when the pump 8 is rotated in the forward direction and oil is supplied to the first oil passage 12 during traveling, the pressure oil acts on the tilt cylinder 6 and the trim cylinder 7 at the same time. Since the thrust cylinder 6 receives the thrust, the operation of the tilt cylinder 6 is suppressed, and only the two trim rods 7b project to rotate the outboard propulsion unit 3 clockwise by an angle corresponding to the amount.
最後に水中にある船外推進機3を水上へ引き上げるに
は、前記トリム角度の調節と同時に、ポンプ8を正転さ
せ第1油路12に給油することによつて行なわれる。この
とき、センサ20によつてソレノイド弁である切換弁16は
順方向に接続されているので、圧油はチルトシリンダ6
とトリムシリンダ7とに同時に給油されるが、トリムシ
リンダ7の上室7dは解放弁26に接続されているので、所
定の高圧が作用するまで不作動状態を維持し、ポンプ8
から給送される圧油の全量がチルトシリンダ6へ送られ
る。よつて、船外推進機3の水上への引き上げが急速に
なされる。船外推進機3が完全に水上へ引き上げられ行
程端に至ると、センサ20の動作により、切換弁16は順方
向から逆方向へ自動的に切換えられ、第1分岐路13を経
てトリムシリンダ7の上室7dに給油されるので、ピスト
ン7cは下室7e内の作動油を排除しつつ、ロツド7bを後退
させる。このとき、既に船外推進機3は上昇端に達して
いるので、チルトシリンダ6には圧油が流れず、ポンプ
8の全圧力がトリムシリンダに作用するので、解放弁26
が開弁し上述の作動が行なわれる。Lastly, the outboard propulsion unit 3 in water is pulled up to the surface by adjusting the trim angle and rotating the pump 8 in the forward direction to supply oil to the first oil passage 12. At this time, since the switching valve 16, which is a solenoid valve, is connected in the forward direction by the sensor 20, the pressure oil is transferred to the tilt cylinder 6
And the trim cylinder 7 are simultaneously refueled, but since the upper chamber 7d of the trim cylinder 7 is connected to the release valve 26, the inoperative state is maintained until a predetermined high pressure acts, and the pump 8
The entire amount of pressure oil fed from is sent to the tilt cylinder 6. Therefore, the lifting of the outboard propulsion unit 3 above the water is rapidly performed. When the outboard propulsion device 3 is completely lifted above the water and reaches the stroke end, the switching valve 16 is automatically switched from the forward direction to the reverse direction by the operation of the sensor 20, and the trim cylinder 7 is passed through the first branch path 13. Since oil is supplied to the upper chamber 7d, the piston 7c causes the rod 7b to retract while removing the hydraulic oil in the lower chamber 7e. At this time, since the outboard propulsion unit 3 has already reached the rising end, pressure oil does not flow to the tilt cylinder 6 and the total pressure of the pump 8 acts on the trim cylinder, so that the release valve 26
Is opened and the above-mentioned operation is performed.
この発明は以上のように、船尾に設けた船外推進機を水
中へ降ろした位置と水上へ引上げた位置とに傾動させる
油圧式チルトシリンダ機構と、前記船外推進機を水中へ
降ろした状態で船体に対する傾き角度を調節する油圧式
トリムシリンダ機構と、ポンプの回転方向が正逆に変え
られることにより作動油の吐出油路および戻り油路が切
り換えられる作動油供給装置とを備え、前記チルトシリ
ンダ機構の油圧シリンダにおけるピストンによって画成
された両オイル室を、前記作動油供給装置の吐出油路、
戻り油路に連通させるとともに、前記両オイル室のうち
作動油が供給されることにより船外推進機が引き上げら
れる方のオイル室を、トリムシリンダ機構用油圧シリン
ダにおけるピストンによって画成された2つのオイル室
のうち作動油が供給されることにより船外推進機が引き
上げ側に傾く方のオイル室に油路を介して連通させ、こ
のトリムシリンダ機構用油圧シリンダの他方のオイル室
を、作動油の流れ方向が作動油タンク側へ向けられたリ
リーフ弁を有する油路を介して作動油タンクに連通させ
てなり、トリムシリンダ機構用油圧シリンダに連通され
た前記2つの油路に、船外推進機が水上へ引き上げられ
たことを検出するセンサの検出信号が入力されていない
ときにはこれらの油路の連通先を前記通りとし、前記セ
ンサの検出信号が入力されたときには、作動油が供給さ
れることにより船外推進機が引き上げ側に傾く方のオイ
ル室を作動油タンクに至る通路に連通させかつ他方のオ
イル室をチルトシリンダ機構用油圧シリンダに至る油路
に連通させる4ポート切換弁を介装したものであるか
ら、船外推進機3を水上へ引き上げる動作が迅速に行な
われる。また、船外推進機3が引き上げられた後は自動
的にチルトロツド7bが退去するので、船外推進機3の収
納作業が容異になる等の効果がある。As described above, the present invention provides a hydraulic tilt cylinder mechanism for tilting the outboard propulsion unit provided at the stern between a position in which it is lowered into water and a position in which it is pulled up above water, and a state in which the outboard propulsion unit is lowered into water. And a hydraulic oil trim cylinder mechanism for adjusting the tilt angle with respect to the hull, and a hydraulic oil supply device for switching the hydraulic oil discharge oil passage and the return oil passage by changing the rotation direction of the pump in the forward and reverse directions. Both oil chambers defined by the piston in the hydraulic cylinder of the cylinder mechanism are connected to the discharge oil passage of the hydraulic oil supply device,
The two oil chambers that are communicated with the return oil passage and are the ones of the two oil chambers in which the outboard propulsion device is pulled up by the supply of hydraulic oil are defined by two pistons in the hydraulic cylinder for the trim cylinder mechanism. When hydraulic oil is supplied from the oil chamber, the outboard propulsion unit communicates with the oil chamber inclining to the pull-up side via an oil passage, and the other oil chamber of the hydraulic cylinder for the trim cylinder mechanism is connected to the hydraulic oil. Is communicated with the hydraulic oil tank via an oil passage having a relief valve whose flow direction is directed toward the hydraulic oil tank side, and the two oil passages communicated with the hydraulic cylinder for the trim cylinder mechanism are propelled overboard. When the detection signal of the sensor that detects that the machine is pulled up to the water is not input, the communication destination of these oil passages is as described above, and the detection signal of the sensor is When the force is applied, the hydraulic oil is supplied so that the oil chamber in which the outboard propulsion machine leans toward the pulling up side communicates with the passage leading to the hydraulic oil tank, and the other oil chamber reaches the hydraulic cylinder for the tilt cylinder mechanism. Since the 4-port switching valve that communicates with the oil passage is provided, the operation of pulling the outboard propulsion unit 3 above the water can be performed quickly. Further, since the tilt rod 7b automatically retreats after the outboard propulsion device 3 is pulled up, there is an effect that the work of housing the outboard propulsion device 3 becomes different.
図面はこの発明の実施例を示すもので、船尾の船外推進
機を示す作動図である。 3……船外推進機、6……チルトシリンダ、7……トリ
ムシリンダ、8……回転形ポンプ。The drawing shows an embodiment of the present invention and is an operation diagram showing a stern outboard propulsion device. 3 ... Outboard propulsion device, 6 ... Tilt cylinder, 7 ... Trim cylinder, 8 ... Rotary pump.
Claims (4)
位置と水上へ引上げた位置とに傾動させる油圧式チルト
シリンダ機構と、前記船外推進機を水中へ降ろした状態
で船体に対する傾き角度を調節する油圧式トリムシリン
ダ機構と、ポンプの回転方向が正逆に変えられることに
より作動油の吐出油路および戻り油路が切り換えられる
作動油供給装置とを備え、前記チルトシリンダ機構の油
圧シリンダにおけるピストンによって画成された両オイ
ル室を、前記作動油供給装置の吐出油路、戻り油路に連
通させるとともに、前記両オイル室のうち作動油が供給
されることにより船外推進機が引き上げられる方のオイ
ル室を、トリムシリンダ機構用油圧シリンダにおけるピ
ストンによって画成された2つのオイル室のうち作動油
が供給されることにより船外推進機が引き上げ側に傾く
方のオイル室に油路を介して連通させ、このトリムシリ
ンダ機構用油圧シリンダの他方のオイル室を、作動油の
流れ方向が作動油タンク側へ向けられたリリーフ弁を有
する油路を介して作動油タンクに連通させてなり、トリ
ムシリンダ機構用油圧シリンダに連通された前記2つの
油路に、船外推進機が水上へ引き上げられたことを検出
するセンサの検出信号が入力されていないときにはこれ
らの油路の連通先を前記通りとし、前記センサの検出信
号が入力されたときには、作動油が供給されることによ
り船外推進機が引き上げ側に傾く方のオイル室を作動油
タンクに至る油路に連通させかつ他方のオイル室をチル
トシリンダ機構用油圧シリンダに至る油路に連通させる
4ポート切換弁を介装したことを特徴とする船外推進機
の油圧式チルト装置。1. A hydraulic tilt cylinder mechanism for tilting an outboard propulsion unit provided at the stern between a position in which it is lowered into water and a position in which it is pulled up above water, and a hull with the outboard propulsion unit being lowered into water. The tilt cylinder mechanism is provided with a hydraulic trim cylinder mechanism for adjusting the tilt angle and a hydraulic oil supply device for switching the hydraulic oil discharge oil passage and the return oil passage by changing the rotation direction of the pump in the forward and reverse directions. Both the oil chambers defined by the pistons in the hydraulic cylinders are communicated with the discharge oil passage and the return oil passage of the hydraulic oil supply device, and the hydraulic oil is supplied from both of the oil chambers to supply the outboard propulsion device. The working oil is to be supplied to the one of the two oil chambers defined by the piston in the hydraulic cylinder for the trim cylinder mechanism. The outboard propulsion unit is connected to the oil chamber that leans toward the pulling up side through an oil passage, and the other oil chamber of this hydraulic cylinder for the trim cylinder mechanism is oriented so that the flow direction of the hydraulic oil is toward the hydraulic oil tank side. It is made to communicate with the hydraulic oil tank through the oil passage having the relief valve, and it is detected that the outboard propulsion machine is pulled up to the water in the two oil passages communicated with the hydraulic cylinder for the trim cylinder mechanism. When the detection signal of the sensor is not input, the communication destinations of these oil passages are as described above, and when the detection signal of the sensor is input, hydraulic oil is supplied to tilt the outboard propulsion unit to the pull-up side. One of the oil chambers is connected to the oil passage leading to the hydraulic oil tank, and the other oil chamber is connected to the oil passage leading to the hydraulic cylinder for the tilt cylinder mechanism. Hydraulic tilting device for outboard propulsion machine according to.
検出するセンサは、船外推進機を水上に係止する係止手
段の作動を検出するものである特許請求の範囲第1項記
載の船外推進機の油圧式チルト装置。2. A sensor for detecting that the outboard propulsion device has been lifted above the water, wherein the sensor detects the operation of locking means for locking the outboard propulsion device above the water. The hydraulic tilt device for the outboard propulsion device described.
検出するセンサは、水上へ引き上げられた船外推進機の
水上側の回動終端を検出する検出スイッチである特許請
求の範囲第1項記載の船外推進機の油圧式チルト装置。3. The sensor for detecting that the outboard propulsion device has been lifted above the water is a detection switch for detecting the turning end on the water side of the outboard propulsion device lifted above the water. A hydraulic tilt device for an outboard propulsion device according to item 1.
検出するセンサは、チルトシリンダの作動終端を検出す
る検出スイッチである特許請求の範囲第1項記載の船外
推進機の油圧式チルト装置。4. The hydraulic system for an outboard propulsion device according to claim 1, wherein the sensor for detecting that the outboard propulsion device has been lifted above the water is a detection switch for detecting the operation end of the tilt cylinder. Tilt device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60221989A JPH078675B2 (en) | 1985-10-07 | 1985-10-07 | Hydraulic tilt device for outboard propulsion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60221989A JPH078675B2 (en) | 1985-10-07 | 1985-10-07 | Hydraulic tilt device for outboard propulsion |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6283298A JPS6283298A (en) | 1987-04-16 |
JPH078675B2 true JPH078675B2 (en) | 1995-02-01 |
Family
ID=16775333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60221989A Expired - Fee Related JPH078675B2 (en) | 1985-10-07 | 1985-10-07 | Hydraulic tilt device for outboard propulsion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH078675B2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10250689A (en) * | 1997-03-07 | 1998-09-22 | Soqi Inc | Vertical swing device of ship propelling device |
JP6224798B1 (en) | 2016-09-30 | 2017-11-01 | 株式会社ショーワ | Outboard motor lifting device |
WO2018138937A1 (en) * | 2017-01-30 | 2018-08-02 | 株式会社ショーワ | Outboard motor raising/lowering device |
JP6294547B1 (en) * | 2017-07-27 | 2018-03-14 | 株式会社ショーワ | Outboard motor lifting device |
JP6243571B1 (en) * | 2017-08-22 | 2017-12-06 | 株式会社ショーワ | Outboard motor lifting device |
JP6330094B1 (en) * | 2017-08-29 | 2018-05-23 | 株式会社ショーワ | Outboard motor lifting device |
JP6294550B1 (en) * | 2017-09-01 | 2018-03-14 | 株式会社ショーワ | Outboard motor lifting apparatus and control method for outboard motor lifting apparatus |
JP6313892B1 (en) * | 2017-09-27 | 2018-04-18 | 株式会社ショーワ | Outboard motor lifting device |
JP6313891B1 (en) * | 2017-09-27 | 2018-04-18 | 株式会社ショーワ | Terminal device, outboard motor lifting system, program, and recording medium. |
-
1985
- 1985-10-07 JP JP60221989A patent/JPH078675B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS6283298A (en) | 1987-04-16 |
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