JPH053813Y2 - - Google Patents
Info
- Publication number
- JPH053813Y2 JPH053813Y2 JP1983186884U JP18688483U JPH053813Y2 JP H053813 Y2 JPH053813 Y2 JP H053813Y2 JP 1983186884 U JP1983186884 U JP 1983186884U JP 18688483 U JP18688483 U JP 18688483U JP H053813 Y2 JPH053813 Y2 JP H053813Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- water
- segment
- hole
- stop
- 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 - Lifetime
Links
- 229920005749 polyurethane resin Polymers 0.000 claims description 5
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、セグメントの穴部に嵌挿されたボル
トに、ワツシヤーとセグメントとの間にはめこん
で装着され、該ボルトに螺合されるナツトにより
セグメントに対して締付けられる、セグメント締
付ボルト用止水パツキンに関する。[Detailed description of the invention] [Industrial application field] The present invention is a bolt that is inserted into a hole in a segment, and is fitted between a washer and a segment, and is screwed onto the bolt. This invention relates to a water-stop gasket for segment tightening bolts, which is tightened to the segment by a nut.
従来、この種の止水パツキンとしては、実公昭
43−8892号公報記載のパツキンが利用されてい
る。この止水パツキン１は、第３図及び第４図に
示す如く、加熱により軟化する樹脂により構成さ
れ、ボルト２のナツト３を締めつけることによつ
て発生する熱により流動化し、ボルト２とナツト
３のねじ山の間隙を埋めて止水するものである。
Conventionally, this type of water-stop gasket was manufactured by Jikosho.
The packing described in Publication No. 43-8892 is used. As shown in FIGS. 3 and 4, this waterproof packing 1 is made of a resin that softens when heated, and is fluidized by the heat generated when the nut 3 of the bolt 2 is tightened. It fills in the gaps between the screw threads to stop water.
しかるに、この止水パツキン１は、第４図に示
す如く、流動化により、ねじ山の間隙だけでな
く、ワツシヤー４とセグメント５との間にも浸透
して介在するようになり、ボルト２の摩擦効果を
弱め、ゆるみ漏水の原因となつていた。 However, as shown in FIG. 4, due to fluidization, the water-stop packing 1 penetrates not only into the gap between the screw threads but also between the washer 4 and the segment 5, and becomes interposed between the washer 4 and the segment 5. This weakened the friction effect, causing loosening and water leakage.
従つて、本考案の目的は、上記の如きゆるみ漏
水を生じることなく優れた止水効果を発揮するセ
グメント締付ボルト用止水パツキンを提供するこ
とにある。 Therefore, an object of the present invention is to provide a water-stop packing for segment tightening bolts that exhibits an excellent water-stopping effect without causing loosening and water leakage as described above.
〔課題を解決するための手段〕
本考案は、上記目的を次のセグメント締付ボル
ト用止水パツキンを提供することにより達成した
ものである。[Means for Solving the Problems] The present invention achieves the above object by providing the following water-stop packing for segment tightening bolts.
水膨潤性ポリウレタン樹脂とゴムの混練物より
構成され、外方に向つて拡開している漏斗状の穴
端部を備えた穴部を有するセグメントの該穴部に
嵌挿されたボルトに装着され、該ボルトに螺合さ
れるナツトでワツシヤーを介して締付けられるこ
とにより、上記穴端部内に圧着されて上記セグメ
ントの穴部と上記ボルトとの間の間隙を埋めるパ
ツキンであつて、その上端外縁及びその下端外縁
をそれぞれ斜めに切欠してその外周部形状を断面
略台形状に形成してあり、その内径が上記ボルト
の外径よりも大きくなしてあることを特徴とする
リング状セグメント締付ボルト用止水パツキン。 A water-stop gasket for a ring-shaped segment tightening bolt is made of a mixture of water-swellable polyurethane resin and rubber, and is attached to a bolt inserted into a hole of a segment having a hole with a funnel-shaped hole end that widens outward. When a nut screwed onto the bolt is tightened via a washer, the gasket is pressed into the hole end to fill the gap between the hole of the segment and the bolt, and the upper and lower outer edges of the gasket are each cut out obliquely to form the outer periphery into a generally trapezoidal cross section, and the inner diameter is larger than the outer diameter of the bolt.
以下、本考案のセグメント締付ボルト用止水パ
ツキンを、その実施例について図面を参照しなが
ら説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the water-stop packing for segment tightening bolts of the present invention will be described with reference to the drawings.
本考案のセグメント締付ボルト用止水パツキン
に用いられる水膨潤性ポリウレタン樹脂は、特開
昭51−96848号公報記載のものが好適し、本考案
の止水パツキンは、該水膨潤性ポリウレタン樹脂
をゴムとを混練した混練物より構成されたもの
で、膨潤率10％以上を有するのが好ましく用いら
れる。 The water-swellable polyurethane resin used in the water-swelling gasket for segment tightening bolts of the present invention is preferably the one described in JP-A-51-96848. It is composed of a kneaded product obtained by kneading and rubber, and preferably has a swelling rate of 10% or more.
本考案の止水パツキン１は、第１図に示される
ように、ボルト２に、ワツシヤー４とセグメント
５との間に介在するように装着されるが、止水パ
ツキン１の内径は、ボルト２の外径より若干大き
く設計して、止水パツキン１とボルト３との間に
空隙を設けるようにするのが、作業性上好まし
い。 The water stopper 1 of the present invention is attached to the bolt 2 so as to be interposed between the washer 4 and the segment 5, as shown in FIG. It is preferable in terms of workability to design the bolt to be slightly larger than the outer diameter of the bolt so as to provide a gap between the water-stop packing 1 and the bolt 3.
本考案の止水パツキンは、水膨潤性ポリウレタ
ン樹脂とゴムとの混練物より構成され、そして第
５図に示す如く、止水パツキン１の上端外縁及び
下端外縁をそれぞれ斜めに切欠して傾斜部１ａを
設け、該止水パツキン１の外周部形状を断面略台
形状に形成してあり、上記ボルト２にナツト３を
螺合させる際に、上記ナツト３との間にワツシヤ
ー４を介在させて使用されるものであり、また、
ナツト３の締付けにより止水パツキン１が圧着さ
れるセグメント５の穴部５１は、外方に向つて拡
開している漏斗状の穴端部５２を備えている。 The water-stop packing of the present invention is composed of a kneaded product of water-swellable polyurethane resin and rubber, and as shown in FIG. 1a, and the outer circumferential shape of the water stop packing 1 is formed to have a substantially trapezoidal cross section, and when the nut 3 is screwed onto the bolt 2, a washer 4 is interposed between the nut 3 and the bolt 2. is used, and
The hole 51 of the segment 5, into which the water-stop packing 1 is crimped by tightening the nut 3, has a funnel-shaped hole end 52 that widens outward.
従つて、本考案の止水パツキン１は、第２図に
示されるように、ナツト２で締付けても材質的に
軟化ないし流動化せず、且つナツト２の締付けに
より漏斗状の上記穴端部５２内に圧着され、その
ため、ワツシヤー４とセグメント５との間に浸透
しないので、ゆるみ漏水が起きない。 Therefore, as shown in FIG. 2, the water-stop packing 1 of the present invention does not soften or become fluid even when tightened with the nut 2, and the end of the funnel-shaped hole is formed by tightening the nut 2. 52, and therefore does not penetrate between the washer 4 and the segment 5, so that loosening and water leakage will not occur.
本考案の止水パツキンは、上述の如く構成され
ているため、上述の如き穴部を有するセグメント
と上記ボルトとの間の間隙を埋めるパツキンとし
て、下記の如き効果を奏する。
Since the water stop packing of the present invention is constructed as described above, it has the following effects as a packing that fills the gap between the segment having the hole as described above and the bolt.
(イ) 止水パツキンが水膨潤性ポリウレタン樹脂と
ゴムとの混練物より構成されているから、軟化
ないし流動化せず、ワツシヤーとセグメント間
に浸透しないので、ゆるみ漏水が生じない。(a) Since the water-stop packing is composed of a kneaded mixture of water-swellable polyurethane resin and rubber, it does not soften or fluidize, and does not penetrate between the washer and the segments, so no water leakage occurs due to loosening.
(ロ) パツキンの外周部形状を断面略台形状に形成
してあるから、パツキンをワツシヤーと上記穴
を有するセグメントとの間に確実に介在でき、
ワツシヤーとセグメント間へ止水パツキン樹脂
が流出することによつて生じる漏水がない。(b) Since the outer periphery of the packing is formed to have a substantially trapezoidal cross section, the packing can be reliably interposed between the washer and the segment having the hole,
There is no water leakage caused by the water-stop packing resin flowing out between the washer and the segment.
(ハ) 止水パツキン内径がボルト外径より若干大き
く、止水パツキンとボルトとの間に空隙を形成
してあるから、作業性が良く、且つナツトで締
付けられた止水パツキンが圧着されてセグメン
トの穴部とボルトとの間隙を確実に埋める。(c) The inner diameter of the water stopper is slightly larger than the outer diameter of the bolt, and a gap is formed between the waterstop gasket and the bolt, so workability is good, and the waterstop gasket tightened with the nut is crimped. To reliably fill the gap between the segment hole and the bolt.
(ニ) ゴム弾性による止水性と、水と接触した際の
水膨潤性による止水性とにより、より確実な止
水性を図ることができる。(d) More reliable water-stopping performance can be achieved by the water-stopping property due to rubber elasticity and the water-stopping property due to water swelling property when in contact with water.
第１図は本考案の止水パツキンをボルトに装着
した状態を示す一部断面図であり、第２図は本考
案の止水パツキンをボルトに装着しナツトで締付
けた状態を示す一部断面図である。第３図は従来
の止水パツキンをボルトに装着した状態を示す一
部断面図であり、第４図は従来の止水パツキンを
ボルトに装着しナツトで締めつけた状態を示す一
部断面図である。第５図は本考案の止水パツキン
の縦断面図である。
１……止水パツキン、２……ボルト、３……ナ
ツト、４……ワツシヤー、５……セグメント、５
１……穴部、５２……穴端部。
Figure 1 is a partial cross-sectional view showing the water-stop gasket of the present invention attached to a bolt, and Figure 2 is a partial cross-sectional view showing the water-stop gasket of the present invention installed on a bolt and tightened with a nut. It is a diagram. Figure 3 is a partial cross-sectional view showing a conventional water-stop gasket attached to a bolt, and Figure 4 is a partial cross-sectional view showing a conventional water-stop gasket attached to a bolt and tightened with a nut. be. FIG. 5 is a longitudinal cross-sectional view of the waterproof packing of the present invention. 1... Water stop gasket, 2... Bolt, 3... Nut, 4... Washer, 5... Segment, 5
1... Hole portion, 52... Hole end portion.
Claims (1)
構成され、外方に向つて拡開している漏斗状の穴
端部を備えた穴部を有するセグメントの該穴部に
嵌挿されたボルトに装着され、該ボルトに螺合さ
れるナツトでワツシヤーを介して締付けられるこ
とにより、上記穴端部内に圧着されて上記セグメ
ントの穴部と上記ボルトとの間の間隙を埋めるパ
ツキンであつて、その上端外縁及びその下端外縁
をそれぞれ斜めに切欠してその外周部形状を断面
略台形状に形成してあり、その内径が上記ボルト
の外径よりも大きくなしてあることを特徴とする
リング状セグメント締付ボルト用止水パツキン。 It is made of a kneaded material of water-swellable polyurethane resin and rubber, and is attached to a bolt inserted into the hole of a segment that has a hole with a funnel-shaped hole end that expands outward. and is crimped into the end of the hole by being tightened with a nut screwed onto the bolt via a washer to fill the gap between the hole of the segment and the bolt, the upper end of which is A ring-shaped segment fastener characterized in that the outer edge and the lower outer edge of the bolt are obliquely cut out to form a substantially trapezoidal shape in cross section, and the inner diameter of the outer circumference is larger than the outer diameter of the bolt. Water-stop gasket for attached bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18688483U JPS6095265U (en) | 1983-12-05 | 1983-12-05 | Water stopper for segment tightening bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18688483U JPS6095265U (en) | 1983-12-05 | 1983-12-05 | Water stopper for segment tightening bolts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6095265U JPS6095265U (en) | 1985-06-28 |
| JPH053813Y2 true JPH053813Y2 (en) | 1993-01-29 |
Family
ID=30403542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18688483U Granted JPS6095265U (en) | 1983-12-05 | 1983-12-05 | Water stopper for segment tightening bolts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6095265U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57160450U (en) * | 1981-04-03 | 1982-10-08 |
-
1983
- 1983-12-05 JP JP18688483U patent/JPS6095265U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6095265U (en) | 1985-06-28 |
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