JPS5885789A - Sailing board - Google Patents

Sailing board

Info

Publication number
JPS5885789A
JPS5885789A JP56183979A JP18397981A JPS5885789A JP S5885789 A JPS5885789 A JP S5885789A JP 56183979 A JP56183979 A JP 56183979A JP 18397981 A JP18397981 A JP 18397981A JP S5885789 A JPS5885789 A JP S5885789A
Authority
JP
Japan
Prior art keywords
board
sailing
hole
protrusion
sailing board
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.)
Pending
Application number
JP56183979A
Other languages
Japanese (ja)
Inventor
Haruhide Suzuki
鈴木　東英
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56183979A priority Critical patent/JPS5885789A/en
Publication of JPS5885789A publication Critical patent/JPS5885789A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
    • B63B32/64—Adjustable, e.g. by adding sections, by removing sections or by changing orientation or profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B2035/009—Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)

Abstract

PURPOSE:To improve maneuverability of a sailing board by enabling a dagger board to be put in and out of a board body so that a protruding amount of the dagger board from the bottom surface of the board body into water can be varied at will and maintained at the varied position. CONSTITUTION:A board body of a sailing board 1 is provided with a through hole 5 in which is supported a dagger board 7 through a rotary shaft portion 13. The rotary shaft portion 13 comprises central rotary dies 21 (21A, 21A) and disks 22. When the dagger board 7 is turned, projections 38 of the disks 22 slide out of recesses 39 to press coil springs 33 and can turn until they stop at required angular positions. When the projections 38 fit the corresponding recesses 39 in that positions, the turning angular positions are maintained. The reference number 14 in the drawing designates a handling belt for manually turning the dagger board 7 and the reference numeral 15 a projection by which the dagger board 7 is operatively turned with foot.

Description

【発明の詳細な説明】 本発明はセイリングボード、いっそう詳しくは、セイリ
ングボードのダガーボードに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to sailing boards, and more particularly to daggerboards for sailing boards.

ダガーボードはボード本体に設けた貫通孔に抜き差しし
てボード本体の底から水中に突出させ、ボードの横流れ
を防ぐものであり、ヨツトのセンタボードに類似した機
能を果す。A dagger board is inserted into and removed from a through hole in the board body, and protrudes from the bottom of the board body into the water to prevent the board from drifting sideways, and has a function similar to that of a yacht's center board.

セイリングの目的に応じて、ダガーボ−１゛を異なった
寸法、形状のものと交換するのが普通である。しかしな
がら、ひとたびあるダガーボードを選んで装着したなら
ば、セイリング中には交換することはできない。セイリ
ング中にダガーボードを交換したいことはｌ、ばしばあ
る。It is common to replace the daggerbow with one of different size and shape depending on the sailing purpose. However, once a daggerboard has been selected and installed, it cannot be replaced while sailing. I often want to change the daggerboard while sailing.

本発明の目的は、このような願いを満たすべくダガーボ
ードの水中突出量を変え、１−かも操作者が手を添える
ことなくそれを維持することのできるセイリングボード
な提供することにある。An object of the present invention is to provide a sailing board that can change the amount of protrusion of a daggerboard into the water and maintain it without the operator's hands.

本発明によれば、ボード本体に抜き差しできるようにな
っているダガーボードが装着位置で揺動することができ
、したがってボード本体底面から水中への突出量を変れ
ることができ、しかもその揺動角度位置を操作者をわず
られすことなく維持することができる。According to the present invention, the dagger board, which can be inserted into and removed from the board main body, can swing in the installed position, and therefore the amount of protrusion into the water from the bottom of the board main body can be changed, and the swinging The angular position can be maintained without disturbing the operator.

以下、添付図面を参照しながら本発明を実施例によって
説明する。Hereinafter, the present invention will be described by way of examples with reference to the accompanying drawings.

第１ないし６図を参照して、セイリングボード１は上面
２と底ＷＪ３’とを有する本体４を包含し、図には示し
てな゛いが、上面２にセイルを張つｔこマストが取付は
てあり、この上面に操作者が足で立ってセイルを繰り、
ボードを進ませるよう如なっている。1 to 6, a sailing board 1 includes a main body 4 having an upper surface 2 and a bottom WJ3', and a mast (not shown in the drawings) on which a sail is attached to the upper surface 2. There is a mounting plate on which the operator stands with his feet and flies the sail.
It's like moving the board forward.

ボード本体を１面２から底面３に貫いてボード前後方向
に延びる細長い貫通孔５が設けである。この貫通孔５に
はその全内面を覆って補強枠６が嵌めである。ボード本
体は普通、発泡体で作っであるので、このような補強枠
６を嵌め込んだほうが好ましいが、貫通孔５の内面、特
にその長手方向内面を適当洗処理（２て所望の硬さを与
えることができれば、補強枠６は不要であり、それが本
発明の基本概念であることは了解されたい。An elongated through hole 5 is provided which extends through the board body from the first surface 2 to the bottom surface 3 in the board front-rear direction. A reinforcing frame 6 is fitted into the through hole 5 so as to cover the entire inner surface thereof. Since the board body is usually made of foam, it is preferable to fit such a reinforcing frame 6 into it, but the inner surface of the through hole 5, especially the inner surface in the longitudinal direction, should be washed appropriately (2) to obtain the desired hardness. It should be understood that if it could be provided, the reinforcing frame 6 would be unnecessary, and that this is the basic concept of the present invention.

補強枠６はダガーボード７を収容できるだけの幅、長さ
を有し、その上方開口部の長さのほぼ半分１でかストッ
パ板８で閉ざされている。これは、後に、明らかにする
ように、ダガーボード７が揺動時にボード本体４の上面
２から突き出るのを防ぐためである。The reinforcing frame 6 has a width and length sufficient to accommodate the dagger board 7, and is closed by a stopper plate 8 at about half the length of its upper opening. This is to prevent the dagger board 7 from protruding from the top surface 2 of the board main body 4 during rocking, as will be made clear later.

補強枠６の向い合った長手方向内面９、すなわち側面に
は、スロット部１ｏが設けてあり、各スロット部１ｏは
ボード本体４の上面２と一致している補強枠上縁１１が
ら下方に延び、補強枠６の高さのほぼ３分のｉのところ
で終っている。これらのスロット部１ｏは、後に詳しく
説明するようにダガーボード７の回転軸部１３と協働し
てダガーボード７を補強枠６内に上方から抜き差し自在
に装着できるようにすると共如、装着時にダガーボード
７が揺動できるようＫする。ダガーボード７には、その
抜き差しを容易にするために、把手手段、たとえばハン
ドリングベルト１４が取付けである。また、ダガーボー
ド７の揺動をたとえば足先などで行なえるように、突起
１５が設けである（第１，２図参照）。Slot portions 1o are provided on the opposing longitudinal inner surfaces 9, ie, side surfaces, of the reinforcing frame 6, and each slot portion 1o extends downward from the reinforcing frame upper edge 11 that is coincident with the upper surface 2 of the board body 4. , and ends at i, which is approximately a third of the height of the reinforcing frame 6. These slot portions 1o cooperate with the rotating shaft portion 13 of the dagger board 7 to allow the dagger board 7 to be inserted into and removed from the reinforcing frame 6 from above, as will be explained in detail later. K so that the dagger board 7 can swing. A handle means, such as a handling belt 14, is attached to the dagger board 7 to facilitate its insertion and removal. Further, a protrusion 15 is provided so that the dagger board 7 can be swung by, for example, the tip of the foot (see FIGS. 1 and 2).

ｆＪＫ、第７ないし１６図を参照して、ダガーボード７
の回転軸部１３は、ダガーボード７の孔２０内に装着し
た中央回転ゴマＭ１と、この回転ゴマ２１０両側面に配
置し′た円板２２とを包含する。特に第１１図でわかる
ように、回転ゴマ−１２１は一対のコマ要素２１Ａから
成り、各コマ要素はその周面がら外方に突出した突起２
３を有し、一方、第９　、１１３図でわかるように、ダ
ガーボード７の孔２０はこれらコマ要素２１Ａの外形に
合わせた形状となっており、ダガーボード７と回転ゴマ
２１との間に相対回転が生じないようにしである。なお
、回転ゴマ２１の突起２３の数ｔｉ図示実施例では、４
つであるが、これに限定するつもりはない。fJK, with reference to figures 7 to 16, dagger board 7
The rotating shaft portion 13 includes a central rotating piece M1 mounted in a hole 20 of the dagger board 7, and disks 22 arranged on both sides of the rotating piece 210. In particular, as can be seen in FIG. 11, the rotating top 121 consists of a pair of top elements 21A, and each top element has a protrusion 2 projecting outward from its circumferential surface.
On the other hand, as can be seen in FIGS. 9 and 113, the holes 20 of the daggerboard 7 are shaped to match the external shapes of these top elements 21A, and there is no space between the daggerboard 7 and the rotating tops 21. This is to prevent relative rotation from occurring. Note that the number of protrusions 23 on the rotating top 21 is 4 in the illustrated embodiment.
However, it is not intended to be limited to this.

回転ゴマ２１０コマ要素２１Ａは、それぞれ、ばね受は
手段を備えており、一方のコマ要素２１Ａのばね受は手
段はその内面に周方向に等間隔に設けた筒状突起３６で
あり、他方のコマ要素２１Ａのばね受は手段はそれの対
応した表面に前記筒状突起３６に対応して設けたビ／３
６Ａである。それぞれ対応したピン３６Ａと突起３６と
の間にはコイルばね３３が挿設してあり、このばねの各
端がそれぞれピン３６Ａ１突起３６に受けである。これ
らのばね３３はコマ要素２１Ａを互に離れる方向に弾力
的に押圧している。Each of the rotating top elements 210 and the top elements 21A is equipped with a spring bearing means, and the means of the spring bearing of one top element 21A is cylindrical protrusions 36 provided on the inner surface thereof at equal intervals in the circumferential direction. The spring bearing of the piece element 21A is formed by means of a bi/3 provided on the corresponding surface thereof corresponding to the cylindrical projection 36.
It is 6A. A coil spring 33 is inserted between the corresponding pin 36A and the projection 36, and each end of this spring is received by the projection 36 of the pin 36A1. These springs 33 elastically press the frame elements 21A in a direction away from each other.

円板２２はその外方側面から外向きに突出する突片２４
を有し、この突片２４は円板の直径方向に延びておりか
つ反対側の円板上にある同様の突片と直径方向において
整合している。これらの突片２４．はダガーボード７を
ボード本体貫通孔、すなわち補強枠６に挿入するときに
スロット部１０に受は入れられ、ダガーボード７を案内
すると共にメガ−ボード揺動時に円板２２がいっしょに
回転するのを阻止する。The disc 22 has a projection 24 projecting outward from its outer side surface.
The projection 24 extends diametrically across the disc and is diametrically aligned with a similar projection on the opposite disc. These protrusions 24. When the dagger board 7 is inserted into the through hole of the board main body, that is, the reinforcing frame 6, the slot portion 10 receives the dagger board 7, guides the dagger board 7, and causes the disk 22 to rotate together when the mega board swings. to prevent

円板２２の回転ゴマ２１への装着は、ボルトナツト機構
で行なわれている。各コマ要素２１Ａには、その軸線方
向に貫通孔２６が設けてあり、この貫通孔２６と同心に
側円板２２の中心にも小さい径の゛貫通孔２７が設けで
ある。どれらの貫通孔２６，２７に頭部２８を有するボ
ルト２９が１通してあり、このボルト２９の反対端にあ
るねじ部３ｏにはナツト３１が°螺合１７である。ボル
ト頭部２８と対応した円板２２との間、ナツト３１と対
応した円板２２との間には、それぞれ、ワッシャ３２が
設置しである。なお、ボルト２９の長さは組立時にその
両端がそねぞねの円板２２の貫通孔２７に通じる、各突
片２４に設けたくぼみ３４内に納まるように決めである
。The disk 22 is attached to the rotating block 21 using a bolt-and-nut mechanism. Each piece element 21A is provided with a through hole 26 in its axial direction, and a small diameter through hole 27 is provided concentrically with the through hole 26 at the center of the side disk 22. A bolt 29 having a head 28 is passed through each of the through holes 26 and 27, and a nut 31 is screwed 17 into a threaded portion 3o at the opposite end of the bolt 29. Washers 32 are installed between the bolt head 28 and the corresponding disk 22, and between the nut 31 and the corresponding disk 22. The length of the bolt 29 is determined so that, during assembly, both ends of the bolt 29 fit into the recess 34 provided in each protrusion 24, which communicates with the through hole 27 of the grooved disc 22.

ダガーボード７を所望の揺動角度位置に位置決めする手
段として、各円板２２の内方側面２２Ａに半球形の突起
３８が周方向に等間隔で設けてあり、これに対応して各
コマ要素２１Ａの外側面に同様な配置の半球形のくぼみ
３９が設けである。回転軸部１３の組立時、これらの突
起３８はそれぞれ対応したくぼみ３９内に係合１．てお
り、夕′ガーボード７が自由に揺動するのを防いでいる
。ダガーボード７にコイルばね３３の押圧力に打ち勝つ
だけの力を加えてそれを揺動させると、回転ゴマ２１０
回転によりそのくぼみ３９から突起３８が押し出される
ような力が働き、コイルばね３３の力に抗してコマ要素
２１Ａが内方に押され（第１２Ｂ図）竜それぞれのくぼ
み３９が隣りの突起３８上に移動させられる。As a means for positioning the dagger board 7 at a desired swing angle position, hemispherical protrusions 38 are provided on the inner side surface 22A of each disk 22 at equal intervals in the circumferential direction, and correspondingly, each piece element A similarly arranged hemispherical recess 39 is provided on the outer surface of 21A. When assembling the rotating shaft portion 13, these protrusions 38 are engaged in their corresponding recesses 39. This prevents the garboard 7 from swinging freely. When a force sufficient to overcome the pressing force of the coil spring 33 is applied to the dagger board 7 and it is swung, the rotating sesame 210
Due to the rotation, a force is exerted to push out the protrusion 38 from the recess 39, and the piece element 21A is pushed inward against the force of the coil spring 33 (FIG. 12B). be moved up.

このとき、突起３８、したがって、〈ぼみ３９の数が、
たとえば、３６個であれば、移動角度は１０度となり、
ダガーボードを１０度ずつ所望の角度位置に位置決めで
きるわけである。もちろん、１回の移動角度は所望に応
じて選択でき、突起３８、〈ぼみ３９の数を変えればよ
い。ダガーボード７は最終的に補強枠６のストッパ８と
係合するところまで揺動させうる。At this time, the number of protrusions 38, therefore, the number of depressions 39 is
For example, if there are 36 pieces, the movement angle will be 10 degrees,
This means that the daggerboard can be positioned at a desired angular position in 10 degree increments. Of course, the angle of one movement can be selected as desired, and the number of protrusions 38 and recesses 39 may be changed. The daggerboard 7 can be swung until it finally engages with the stopper 8 of the reinforcing frame 6.

第１９図は本発明のまた別の実施例を示しており、この
実施例では、コイルばね３３の代りにエラストマー要素
４２がコマ要素２１Ａの向い合った面に接着してあり、
コマ要素２１Ａが互に向って弾力的に移動されうるよう
にしである。エラストマー要素４２の直径はコマｌ［Ｌ
ｉＥ２１Ａの直径よりもやや小さくなっており、コマ要
素２１Ａが互に向って押圧さねたときのエラストマー要
素４２の外周部の逃げ代４３が設けである。エラストマ
ー要素４２のコマ要素２１Ａ間への設置は接着に限らず
種々の手段によって行ないうる。FIG. 19 shows another embodiment of the invention, in which instead of the coil spring 33, an elastomeric element 42 is glued to the opposite side of the link element 21A;
This allows the piece elements 21A to be moved elastically towards each other. The diameter of the elastomer element 42 is coma l [L
It is slightly smaller than the diameter of the iE21A, and is provided with an allowance 43 for the outer periphery of the elastomer element 42 when the piece elements 21A are not pressed toward each other. The elastomer element 42 can be installed between the frame elements 21A by various means other than adhesion.

なお、突起３８とくぼみ３９の組合わせの代りに、第１
７．１８図に示すように、円板２２の内方両画、２２Ａ
に周方向に二等辺三角形の歯４０を配置し、それに対応
した回転ゴマの側面に同様の歯を配置するか、あるいは
その逆でも同様の効果を得ることができる。Note that instead of the combination of the protrusion 38 and the recess 39, the first
7. As shown in Figure 18, both inner strokes of the disk 22, 22A
A similar effect can be obtained by arranging isosceles triangular teeth 40 in the circumferential direction and arranging similar teeth on the corresponding side surfaces of the rotating top, or vice versa.

また、半球形突起をコマ要素側面に、半球形くぼみを円
板に設けてもよい。Further, a hemispherical protrusion may be provided on the side surface of the piece element, and a hemispherical recess may be provided on the disk.

回転ゴマ２１および円板２２は、たとえばナイロン、テ
フロンのよ一うな合成樹脂で作ると、加工性、操作性の
点で非常に好ましい。It is very preferable to make the rotating sesame 21 and the disk 22 from a synthetic resin such as nylon or Teflon in terms of processability and operability.

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

第１図は本発明によるダガーボードを装着したセイリン
グボード本体の断片縦断面図、第２図は異なった位置に
あるダガーボードを示す、第１図と同様の図、 第３図はダガーボードを取り去った状態を示す、第１図
と同様の図、 第４図は第３図の４−４線に沿った断面図、第５図は第
１図の５−＝５＠に沿った断面を示す拡大図、 第６図は第５図の６−６線から見た縮尺平面図、 第７図はダ労−ボードを回転軸部を装着した状態で示す
側面図、 第８図は回転軸部の拡大斜視図、 第９図は回転軸部を取り去った状態にあるダガーボード
の側面図、 第１０図は第９図の１０−１０線に沿った断面図、 第１１図は回転軸部で用いるコマ要素を示す斜視図、 第１２Ａ図は組付は状態にある回転軸部の詳細を示す拡
大断面図、 第１２Ｂ・図は回転軸部の別の位置を示す、第１２Ａ図
と同様の図、 第１３図は回転軸部の展開断面図、 第１４図はコマ要素の外側面を示す斜視図、第１５図は
コマ要素の向い合った内側面を示す斜視図、 第１６図は２つの円板のコマ要素側の面を示す斜視図、 第１７図は本発明の別の実施例である回転軸部の１つの
円板を示す正面図、 第１８図は第１７図の１　’８−１８線に沿った断片側
面図、 第１９図は本発明のまた別の実施例である回転ゴマの断
面図である。 ｌ・・・・・・セイリングボード、４・・・・・・ボー
ド本体、５・・・・・・貫通孔、６・・・・・・補強枠
、７・・・・・・ダガーボード、ＩＯ・・・・・・スロ
ット部、１３・・・・・・回転軸部、２１・・・・・・
回転ゴマ、２１Ａ・・・・・・コマ要素、２２・・・・
・・円板、２３・・・・・・突起、２９・・・・・・ボ
ルト、３１・・・・・・ナラｌ−１３３・・・・・・コ
イルばね、３８・・・・・・半球形突起、３９・・・・
・・半球形くぼみ、 第１２Ｂ図FIG. 1 is a fragmentary longitudinal sectional view of a sailing board body equipped with a daggerboard according to the invention; FIG. 2 is a view similar to FIG. 1 showing the daggerboard in a different position; FIG. 3 is a view similar to FIG. Figure 4 is a cross-sectional view taken along line 4-4 in Figure 3, and Figure 5 is a cross-sectional view taken along line 5-=5@ in Figure 1, showing the removed state. Figure 6 is a scaled plan view taken from line 6-6 in Figure 5. Figure 7 is a side view of the Da-Ro board with the rotating shaft attached. Figure 8 is the rotating shaft. Figure 9 is a side view of the daggerboard with the rotating shaft removed, Figure 10 is a sectional view taken along line 10-10 in Figure 9, Figure 11 is the rotating shaft. Figure 12A is an enlarged cross-sectional view showing details of the rotating shaft in the assembled state; Figure 12B is the same as Figure 12A, showing another position of the rotating shaft. Figure 13 is a developed sectional view of the rotating shaft part, Figure 14 is a perspective view showing the outer surface of the top element, Figure 15 is a perspective view showing the opposing inner sides of the top element, and Figure 16 is a perspective view showing the opposing inner surfaces of the top element. FIG. 17 is a front view showing one disk of the rotating shaft part which is another embodiment of the present invention; FIG. FIG. 19 is a cross-sectional view of a rotary sesame according to another embodiment of the present invention. l...Sailing board, 4...Board body, 5...Through hole, 6...Reinforcement frame, 7...Dagger board, IO...Slot part, 13... Rotating shaft part, 21...
Rotating sesame, 21A... Top element, 22...
... Disk, 23 ... Protrusion, 29 ... Bolt, 31 ... Narrow l-133 ... Coil spring, 38 ... Hemispherical projection, 39...
...Semispherical depression, Figure 12B

Claims (1)

【特許請求の範囲】 （１）＠後方向に延びる頑長い貫通孔を有するボード本
体と、前記貫通孔に抜き差し自在に装着することができ
かつこの貫通孔の長手方向軸線に対して直角の軸線まわ
りに揺動できるようにこの貫通孔内に設置したダガーボ
ードと、このダガーボードを所望角度位置に位置決めす
る装置とを包ぎｆ６セイリングボードにおいて、前記ダ
ガーボードがその一端に近いところに回転軸部を有し、
この回転軸部が、前記ダガーボードを横方向に貫通する
孔内に相対回転しないように設置された中央回転ゴマで
あって、互いに向い合っておりかつ互に離れる方向に弾
力的に押されている一対のコマ要素から成る回転ゴマと
、この回転ゴマをはさむように同心に取付°けられた一
対の円板と、各円板の回転ゴマと係合している側面とは
反対側の側面から突出１．ておりかつ円板の直径方向に
延びてい石突片であって、丸に相手方の円板上の突片と
直径方向：でおいて整合している突片とを包よし、前記
ボード本体貫通孔の向い合った投手力向側面に互に整合
したスロット＆が設けてあり、これらのスロット部の各
々が前記各円板の突片を回転しないように受は入れてお
り、前記位置決め装置が前記回転ゴマ、各円板のいずれ
か一方に設けた複数個の突起と、他方に設けた対応した
数のくぼみとから成ることを特徴とするセイリングボー
ド。 （２、特許請求の範囲第２項記載のセイリングボードに
おいて、前記スロット部が、前記ボード本体の貫通孔の
側面を補強する補強枠、の側面に設けであることを特徴
とするセイリングボード。 （３）特許請求の範囲第２項記載のセイリングボードに
おいて、前記位置決め装置の前記突起が半球形であり、
前記〈ぼみがそれに対応した形状であることを特徴とす
るセイリングボード。 （４）特許請求の範囲第２項記載のセイリングボードに
おいて、前記位置決め装置の前記突起が、回転ゴマ、円
板の対向した側面に円形列に設けた二等辺三角形の歯の
山部で・・あり、前記くぼみかその谷部であることを特
徴とするセイリングボード。 （５）％許請求の範囲第１項記載のセイリングボードに
おいて、一方のコマ要素の表面に周方向に等間隔でばね
受けが設けてあり、他方のコマ要素の対応した表面にも
前記ばね受げに対応したばね受けが設けてあり、′それ
ぞれ対応したばね受けの間にコイルばねが設置してあり
、これらのコイルばねがコマ要素を互に離れる方向に弾
力的に押圧していることを特徴とするセイリングボード
。 （６）特許請求の範囲第１項記載のセイリングボードに
おいて、前記コマ要素がエラストマー要素によって連結
してあり、これらのコマ要素が互に向って押されたとき
にこのエラストマー要素が収縮するようになっているこ
とを特徴とするヒイリングボード。 （力　特許請求の範囲第１項記載のセイリングボードに
おいて、ダガーボードに把手手段が設けであることを、
特徴とするセイリングボード。[Scope of Claims] (1) @A board body having a robust through hole extending in the rear direction, and an axis that can be inserted into and removed from the through hole and is perpendicular to the longitudinal axis of the through hole. A daggerboard installed in the through hole so as to be able to swing around, and a device for positioning the daggerboard at a desired angular position are wrapped around the f6 sailing board. has a department;
The rotating shaft portion is a central rotating piece installed so as not to rotate relative to each other in a hole passing through the dagger board laterally, and facing each other and being elastically pushed in a direction away from each other. A rotating top consisting of a pair of top elements, a pair of discs installed concentrically so as to sandwich this rotating top, and a side surface of each disk opposite to the side surface that engages with the rotating top. Protruding from 1. A stone protrusion extending in the diametrical direction of the disk and enclosing a protrusion that is aligned in the diametrical direction with a protrusion on the other disk in a circle, and forming the through hole in the board body. are provided with mutually aligned slots & on opposite sides facing the pitcher's force, and each of these slots receives a protrusion of each of the discs so as not to rotate, and the positioning device A sailing board characterized by comprising a rotating sesame, a plurality of protrusions provided on one of each disc, and a corresponding number of depressions provided on the other. (2. The sailing board according to claim 2, wherein the slot portion is provided on a side surface of a reinforcing frame that reinforces the side surface of the through hole of the board body. 3) In the sailing board according to claim 2, the protrusion of the positioning device has a hemispherical shape,
A sailing board characterized in that the recess has a shape corresponding to the recess. (4) In the sailing board according to claim 2, the protrusion of the positioning device is a rotary sesame, a crest of isosceles triangular teeth provided in a circular row on opposing sides of a disc... A sailing board characterized in that the hollow or the valley is the hollow. (5) Permissible % In the sailing board according to claim 1, the surface of one piece element is provided with spring receivers at equal intervals in the circumferential direction, and the corresponding surface of the other piece element is also provided with the spring receivers. A coil spring is installed between each corresponding spring receiver, and these coil springs elastically press the frame elements in a direction away from each other. A sailing board. (6) A sailing board according to claim 1, wherein the frame elements are connected by an elastomer element, and the elastomer element contracts when the frame elements are pushed toward each other. A healing board that is characterized by: (Force) In the sailing board according to claim 1, the dagger board is provided with a handle means.
A sailing board with special features.
JP56183979A 1981-11-17 1981-11-17 Sailing board Pending JPS5885789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56183979A JPS5885789A (en) 1981-11-17 1981-11-17 Sailing board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56183979A JPS5885789A (en) 1981-11-17 1981-11-17 Sailing board

Publications (1)

Publication Number Publication Date
JPS5885789A true JPS5885789A (en) 1983-05-23

Family

ID=16145180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56183979A Pending JPS5885789A (en) 1981-11-17 1981-11-17 Sailing board

Country Status (1)

Country Link
JP (1) JPS5885789A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230272A2 (en) * 1986-01-20 1987-07-29 Wolf-Dietrich Zander Hinge for drop keels of windsurf boards or sail boats
US4805546A (en) * 1986-01-21 1989-02-21 Kransco Manufacturing, Inc. Retractable water board fin
US5129344A (en) * 1990-10-24 1992-07-14 Kransco Actuating mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230272A2 (en) * 1986-01-20 1987-07-29 Wolf-Dietrich Zander Hinge for drop keels of windsurf boards or sail boats
US4805546A (en) * 1986-01-21 1989-02-21 Kransco Manufacturing, Inc. Retractable water board fin
US5129344A (en) * 1990-10-24 1992-07-14 Kransco Actuating mechanism

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