JPS6225556B2 - - Google Patents

Info

Publication number
JPS6225556B2
JPS6225556B2 JP54063725A JP6372579A JPS6225556B2 JP S6225556 B2 JPS6225556 B2 JP S6225556B2 JP 54063725 A JP54063725 A JP 54063725A JP 6372579 A JP6372579 A JP 6372579A JP S6225556 B2 JPS6225556 B2 JP S6225556B2
Authority
JP
Japan
Prior art keywords
buoyant body
bottom plate
water flow
mooring
disc
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
Application number
JP54063725A
Other languages
Japanese (ja)
Other versions
JPS55156786A (en
Inventor
Isaburo Takeyasu
Takahiro Shimazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zeni Lite Buoy Co Ltd
Original Assignee
Zeni Lite Buoy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zeni Lite Buoy Co Ltd filed Critical Zeni Lite Buoy Co Ltd
Priority to JP6372579A priority Critical patent/JPS55156786A/en
Publication of JPS55156786A publication Critical patent/JPS55156786A/en
Publication of JPS6225556B2 publication Critical patent/JPS6225556B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明は、急潮流中でも傾斜が殆んどなく、直
立性が良い円盤型灯浮標に関する。 円盤型灯浮標は、水線における切断面で、円盤
状に大きな面積が存在し、単位吃水深さ当りの浮
力が非常に大きいため、急潮流のあるところや外
洋などの浮標に多く用いられている。 しかし、浮力体の下面に係留片があり、係留索
により沈錘に係留されているので、潮流等により
水流抵抗をうける所では、浮力体の水流に対する
抵抗の中心位置は係留片よりかなり上方にあり、
浮体が傾斜することは避けられなかつた。 本発明は、電池収容室等を構成する円筒状筐体
の円筒壁を下方に延長し、浮力体下面より下方に
環状に突設し、円盤状浮力体の下方にも水流抵抗
部を構成し、さらに、灯浮標の係留片を下面に取
付けた筐体底板の取付け位置を、浮力体の底板よ
り上方とし、かつ、係留片の位置が、ほぼ浮力体
の水流に対する抵抗中心位置になるような底板の
位置とし、係留片より上方と下方の水流による抵
抗のバランスをとり、たとえ水流中でも直立する
ようにし、灯火の遠達をはかり視認効果のすぐれ
た円盤型灯浮標を提供するものである。 以下図面に示す実施例に従つてその内容を詳述
する。この灯浮標は第1図に示すように円盤型の
浮力体の中央部に電池室等がある円筒状筐体
が貫通している。浮力体は通常の鋼板構造でも
よいが、アルミニウム材あるいは樹脂等の薄い外
皮の内部にウレタンフオーム等の独立気泡性発泡
樹脂が充填されたものとしてもよい。 円筒状筐体は鋼材等で強固に形成され、その
円筒壁を浮力体の下方に延長した状態で環状体
3となつている。環状体3の下縁部内周には重錘
4が設けられる。この重錘4は環状体の肉厚を厚
くして設けてもよく、また、別体を付加してもよ
い。さらに環状体3の外周には第2図に示すよう
に放射状に抵抗板5を突設してもよい。このよう
に、浮力体1の下方にも水流抵抗部を構成する。 円筒状筐体の外周で、浮力体の上縁と下縁
位置に、浮力体を上下から挾むように、フラン
ジ6が設けられ、浮力体を挾持している。ま
た、浮力体は2つ割り構造としてもよく、この
場合、円筒状筐体を左右から挾持するようにフ
ランジ部1′においてボルト10により締着され
ている。 環状体3の内奥の円筒状筐体の底板2′の下
面中央に、第1図で破線で示すような側面形状で
その中心線上に係留孔7′を穿設した係留片が装
着される。底板2′は電池収容室の床板となり、
底板2′の位置の高さは、浮力体の底板1″より
上方にあり、かつ、係留索が取付けられ係留力が
作用する係留片7の位置がほぼ浮力体の水流に対
する抵抗の中心位置に来るような底板2′の位置
の高さとなつている。従つて、係留片7より上方
と下方の浮力体の水流抵抗のバランスがとれ、灯
浮標は水流中でも直立状態を保つことになる。 また、係留片を取付けた筐体の底板2′を浮力
体の底板1″より上方に設けた事により、底板
1″と同じ位置に設けた場合より係留片7の位置
を上げることができ、係留片7より上方と下方の
水流抵抗のバランスをとるための環状体3の突出
長さを短くすることができ、全体の水流の抵抗を
減じることができる。 浮力体のデツキ上には、櫓8が立設されてこ
の櫓の頂部に灯具9が装着される。 灯浮標は、係留片7を係留索(図示せず)によ
り海底の沈錘(図示せず)に連結することにより
係留されている。 以上により環状体3を突設し係留片7を水流に
対する浮力体の抵抗の中心位置付近にしたことに
より、係留片7より上方と下方の水流による抵抗
のバランスがとれ、灯浮標は急潮流中にあつても
直立状態を保つことができる。 また、筐体の底板2′を浮力体の底板1″より上
方に設けたことにより、環状体3の突出長さを短
くすることができ、全体の水流抵抗を減じること
ができる。 また、抵抗板5を設けた場合は、環状体3の長
さをさらに短くすると共に、その面積を加減する
ことにより係留片7の上方と下方の水流抵抗のバ
ランスの調整を容易にする。 また、灯浮標が動揺した場合に、環状体3は動
揺を急速に減衰させるように作用する。 以上のように本発明の円盤型灯浮標は、急潮流
のある水域にあつても傾斜が殆んどなく、直立性
にすぐれ、動揺も少く、安定性がよく、灯火の遠
達がはかれ視認効果のよいすぐれた円盤型灯浮標
を提供するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc-shaped light buoy that has almost no inclination even in rapid currents and has good uprightness. A disc-shaped light buoy has a large disc-shaped area when cut at the waterline, and has a very large buoyancy per unit of water depth, so it is often used as a buoy in places with rapid currents or in the open ocean. There is. However, since there is a mooring piece on the bottom of the buoyant body and it is moored to the sinker by a mooring rope, in places where water flow resistance is encountered due to tidal currents, the center of resistance of the buoyant body to the water flow is located far above the mooring piece. can be,
It was inevitable that the floating body would tilt. The present invention extends the cylindrical wall of the cylindrical casing constituting the battery storage chamber, etc. downward, protrudes downward from the lower surface of the buoyant body in an annular shape, and also constitutes a water flow resistance section below the disc-shaped buoyant body. Furthermore, the mounting position of the bottom plate of the casing on which the mooring piece of the light buoy is attached to the lower surface is above the bottom plate of the buoyant body, and the position of the mooring piece is approximately the center of resistance of the buoyant body against water flow. To provide a disc-shaped light buoy with excellent visibility by adjusting the position of the bottom plate to balance the resistance caused by the water flow above and below the mooring piece so that it stands upright even in the water flow, and which allows the light to reach a long distance and has an excellent visual recognition effect. The contents will be explained in detail below according to the embodiments shown in the drawings. As shown in Figure 1, this light buoy has a cylindrical casing 2 with a battery compartment etc. in the center of a disc- shaped buoyant body 1.
is penetrated. The buoyancy body 1 may have a normal steel plate structure, but it may also have a thin outer skin made of aluminum or resin filled with closed-cell foamed resin such as urethane foam. The cylindrical casing 2 is strongly formed of steel or the like, and its cylindrical wall extends below the buoyant body 1 to form an annular body 3. A weight 4 is provided on the inner periphery of the lower edge of the annular body 3. This weight 4 may be provided by increasing the wall thickness of an annular body, or may be provided as a separate body. Furthermore, resistance plates 5 may be provided radially protruding from the outer periphery of the annular body 3 as shown in FIG. In this way, a water flow resistance section is also configured below the buoyant body 1. Flanges 6 are provided at the upper and lower edges of the buoyant body 1 on the outer periphery of the cylindrical housing 2 so as to sandwich the buoyant body 1 from above and below. Further, the buoyant body 1 may have a two-piece structure, in which case the flange portion 1' is fastened with bolts 10 so as to sandwich the cylindrical casing 2 from the left and right sides. A mooring piece is attached to the center of the lower surface of the bottom plate 2' of the cylindrical housing 2 deep inside the annular body 3, and has a side surface shape as shown by the broken line in FIG. Ru. The bottom plate 2' becomes the floor plate of the battery storage chamber,
The height of the bottom plate 2' is above the bottom plate 1'' of the buoyant body 1 , and the position of the mooring piece 7 to which the mooring rope is attached and the mooring force acts is approximately the center of the buoyant body's resistance to water flow. Therefore, the water flow resistance of the buoyant bodies above and below the mooring piece 7 is balanced, and the light buoy remains upright even in the water flow. In addition, by providing the bottom plate 2' of the housing to which the mooring piece is attached above the bottom plate 1'' of the buoyancy body, the position of the mooring piece 7 can be raised compared to when it is provided at the same position as the bottom plate 1''. The protruding length of the annular body 3 for balancing the water flow resistance above and below the mooring piece 7 can be shortened, and the overall water flow resistance can be reduced.On the deck of the buoyant body 1 , there are A turret 8 is erected and a light fixture 9 is attached to the top of the turret.The light buoy is moored by connecting the mooring piece 7 to a sinker (not shown) on the seabed using a mooring line (not shown). As described above, by protruding the annular body 3 and placing the mooring piece 7 near the center of the resistance of the buoyant body against the water flow, the resistance due to the water flow above and below the mooring piece 7 is balanced, and the light buoy can maintain an upright state even in rapid current. Also, by providing the bottom plate 2' of the casing above the bottom plate 1'' of the buoyant body, the protruding length of the annular body 3 can be shortened. can reduce the overall water flow resistance. Further, when the resistance plate 5 is provided, the length of the annular body 3 is further shortened and the area thereof is adjusted to facilitate adjustment of the balance between the water flow resistance above and below the mooring piece 7. Further, when the light buoy oscillates, the annular body 3 acts to rapidly dampen the oscillation. As described above, the disc-shaped light buoy of the present invention has almost no inclination even in waters with rapid currents, has excellent uprightness, little oscillation, good stability, and allows the light to travel far. This provides an excellent disc-shaped light buoy with good visibility.

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

第1図は本発明にかかる円盤型灯浮標の1部切
断正面図、第2図は第1図のイ−イ切断平面図、
第3図は第1図の浮力体部分の側面図を示す。 ……浮力体、1″……浮力体底板、……円
筒状筐体、2′……筐体の底板、3……環状体、
7……係留片。
FIG. 1 is a partially cutaway front view of a disc-shaped light buoy according to the present invention, FIG. 2 is a cutaway plan view taken along line A in FIG.
FIG. 3 shows a side view of the buoyancy body portion of FIG. 1. 1 ... Buoyant body, 1''... Buoyant body bottom plate, 2 ... Cylindrical housing, 2'... Bottom plate of housing, 3... Annular body,
7...Mooring piece.

Claims (1)

【特許請求の範囲】[Claims] 1 円盤型浮力体を貫通した円筒状筐体を設け、
該筐体の円筒壁を浮力体下方に環状に突設して環
状体とし、前記筐体底板は浮力体の底板より上方
に位置し、筐体底板の下面に灯浮標係留片を取付
け、係留片の位置をほぼ浮力体の水流に対する抵
抗の中心位置となるようにしたことを特徴とする
円盤型灯浮標。
1. Provide a cylindrical housing that penetrates the disc-shaped buoyant body,
The cylindrical wall of the casing is annularly protruded below the buoyant body to form an annular body, the bottom plate of the casing is located above the bottom plate of the buoyant body, and a light buoy mooring piece is attached to the bottom surface of the bottom plate of the casing for mooring. A disc-shaped light buoy characterized in that the position of the piece is approximately the center of resistance of the buoyant body against water flow.
JP6372579A 1979-05-23 1979-05-23 Disc type light buoy Granted JPS55156786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6372579A JPS55156786A (en) 1979-05-23 1979-05-23 Disc type light buoy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6372579A JPS55156786A (en) 1979-05-23 1979-05-23 Disc type light buoy

Publications (2)

Publication Number Publication Date
JPS55156786A JPS55156786A (en) 1980-12-06
JPS6225556B2 true JPS6225556B2 (en) 1987-06-03

Family

ID=13237655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6372579A Granted JPS55156786A (en) 1979-05-23 1979-05-23 Disc type light buoy

Country Status (1)

Country Link
JP (1) JPS55156786A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755836A (en) * 1970-09-28 1973-09-04 Itt Stabilization arrangement for communication buoys
JPS527195U (en) * 1975-07-02 1977-01-19

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51145194U (en) * 1975-05-15 1976-11-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755836A (en) * 1970-09-28 1973-09-04 Itt Stabilization arrangement for communication buoys
JPS527195U (en) * 1975-07-02 1977-01-19

Also Published As

Publication number Publication date
JPS55156786A (en) 1980-12-06

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