JPS634811Y2 - - Google Patents
Info
- Publication number
- JPS634811Y2 JPS634811Y2 JP19733581U JP19733581U JPS634811Y2 JP S634811 Y2 JPS634811 Y2 JP S634811Y2 JP 19733581 U JP19733581 U JP 19733581U JP 19733581 U JP19733581 U JP 19733581U JP S634811 Y2 JPS634811 Y2 JP S634811Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolts
- nuts
- protective
- protective caps
- caps
- 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
Links
- 230000001681 protective effect Effects 0.000 claims description 32
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Joints With Sleeves (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Description
【考案の詳細な説明】
本考案はキヤツプ特に、ボルト・ナツト用保護
キヤツプの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in caps, particularly protective caps for bolts and nuts.
鋳鉄管のような金属管を接合する場合、第１図
に示すように、受口のフランジ１′に押輪２′をボ
ルト・ナツト３′で締結してゴム輪４′を締付け
る、いわゆるメカニカルジヨイントが一般に用い
られているが、メカニカルジヨイントを腐食性の
土壤に埋設する場合は、ナツト３１′並びにナツ
トからのボルト突出部３２′が腐食を受け易く、
かゝる腐食防止のために保護キヤツプ４′を被冠
することを本出願人は先に提案した。 When joining metal pipes such as cast iron pipes, as shown in Figure 1, a so-called mechanical joint is used, in which a push ring 2' is fastened to a socket flange 1' with bolts and nuts 3', and a rubber ring 4' is tightened. A bolt is generally used, but when a mechanical joint is buried in corrosive soil, the nut 31' and the bolt protrusion 32' from the nut are susceptible to corrosion.
The applicant previously proposed that a protective cap 4' be provided to prevent such corrosion.
ところで、上記押輪の周方向におけるボルト・
ナツト締結箇数は多く、通常、作業者が多数箇の
保護キヤツプを一度につかみ、これを一箇づつ上
記ナツト並びにボルト突出部に次々に嵌着してい
るが、このような作業では、つかんでいた保護キ
ヤツプを落して作業の中断が余儀なくされたり、
また、口径の大な鋳鉄管においては、上記ナツト
の寸法が大きく、これに伴い保護キヤツプの寸法
も大きくなるため、上記一度につかんでおくこと
のできる保護キヤツプの箇数が制限されて何回も
つかむことが余儀なくされたりする等、作業性に
問題がある。 By the way, the bolts in the circumferential direction of the press ring are
There are a large number of nuts to be fastened, and workers usually grasp many protective caps at once and fit them into the nuts and bolt protrusions one after another. You may be forced to stop work by dropping the protective cap that has come out, or
In addition, for cast iron pipes with large diameters, the dimensions of the nut are large, and the dimensions of the protective caps are also large, which limits the number of protective caps that can be held at one time. There are problems with workability, such as having to grasp the handle.
本考案に係るキヤツプは、上記の点に鑑み、締
結ずみの互に近傍箇所の多数個の個々のボルト・
ナツトに保護キヤツプを良好な作業性で嵌着し得
るものであり、同時に並列使用される締結部材と
数を同じくした保護キヤツプの複数箇を相互に可
撓性紐体で連結したことを特徴とする構成であ
る。 In view of the above points, the cap according to the present invention consists of a large number of individual bolts and bolts in close proximity to each other.
A protective cap can be fitted onto a nut with good workability, and is characterized by a plurality of protective caps having the same number of fastening members used in parallel connected to each other with a flexible string. The configuration is as follows.
以下、図面により本考案に係るボルト・ナツト
用保護キヤツプを実施例により説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the protective cap for bolts and nuts according to the present invention will be explained with reference to the drawings and examples.
第２図において、ａ，ａ…は保護キヤツプであ
り、ナツトに被せる大径部a1（断面多角形）とボ
ルト突出部に被せる小径部a2（断面円形）とから
構成され、小径部先端はシールドされている。a3
は空気抜き孔である。ｂ，…は保護キヤツプａ，
ａ…の相互間を連結せる可撓性紐体であり、その
材質は通常、上記保護キヤツプａ，…のそれと同
一である。 In Fig. 2, a, a... are protective caps, which are composed of a large diameter part a 1 (polygonal cross section) that covers the nut and a small diameter part a 2 (circular cross section) that covers the bolt protrusion. is shielded. a 3
is an air vent hole. b,... are protective caps a,
It is a flexible string that connects the caps a, and its material is usually the same as that of the protective caps a,....
上記ボルト・ナツト用保護キヤツプは、ゴムま
たは弾性を有するプラスチツク、例えばエチレン
ープロピレン共重合体、エチレンー酢酸ビニル共
重合体、エチレンーエチルアクリレート共重合体
等から成形でき、その成形には射出成形を用いる
ことができる。また、保護キヤツプのみをデツプ
フオーミングで成形し、かゝる成形体に可撓性紐
体を接着剤により連結することも可能である。 The protective caps for bolts and nuts mentioned above can be molded from rubber or elastic plastic, such as ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, etc., and injection molding is used for molding. Can be used. It is also possible to mold only the protective cap by depth forming and connect the flexible string to such a molded body with an adhesive.
第３図Ａは本考案に係るボルト・ナツト用保護
キヤツプで鋳鉄管のメカニカルジヨイントにおけ
るボルト・ナツトを防食した場合の前面説明図
を、第３図Ｂは第３図ＡにおけるＢ−Ｂ断面図を
それぞれ示している。 Figure 3A is an explanatory front view of a case where bolts and nuts in a mechanical joint of a cast iron pipe are protected against corrosion using the protective cap for bolts and nuts according to the present invention, and Figure 3B is a cross section taken along line B-B in Figure 3A. Figures are shown respectively.
第３図Ａ並びに第３図Ｂにおいて、１は鋳鉄管
の受口を、１０は挿口を、２はゴム輪を、３は押
輪を、４はボルト・ナツトをそれぞれ示し各ボル
トナツト４，４…のナツト４１並びにボルト突出
部４２には本考案キヤツプの各保護キヤツプａ，
ａ…が嵌合されており、可撓性紐体ｂ，ｂ…は保
護キヤツプａ，ａ…に連結されたままである。 In Fig. 3A and Fig. 3B, 1 indicates a socket for a cast iron pipe, 10 indicates an insertion port, 2 indicates a rubber ring, 3 indicates a press ring, and 4 indicates a bolt/nut. The nuts 41 and bolt protrusions 42 of the present invention have protective caps a,
a... are fitted, and the flexible strings b, b... remain connected to the protective caps a, a....
上記においてボルト・ナツト用保護キヤツプに
は、保護キヤツプが多数箇のものを予め準備して
おき、可撓性紐体の切断により保護キヤツプの個
数を上記ボルト・ナツトの個数に等しくしたもの
を使用すればよい。 In the above, the protective caps for bolts and nuts are prepared in advance with a large number of protective caps, and the number of protective caps is made equal to the number of bolts and nuts mentioned above by cutting the flexible string. do it.
本考案に係るボルト・ナツト用保護キヤツプは
上述した通り、ボルト・ナツト個数に応じた個数
の保護キヤツプを相互に可撓性紐体で連結した構
成であるから、保護キヤツプのボルト・ナツトへ
の嵌着時、残りの未嵌着の保護キヤツプを喪失す
るといつたことがなく、また、各保護キヤツプの
寸法が大きくても、これら全保護キヤツプを一ま
とめにしてつかんでおかなくても、次々にボル
ト・ナツトに保護キヤツプを嵌着していくことが
できる。従つて保護キヤツプのボルト・ナツトへ
の嵌着作業を能率よく行うことが可能となる。 As mentioned above, the protective cap for bolts and nuts according to the present invention has a structure in which a number of protective caps corresponding to the number of bolts and nuts are connected to each other by a flexible string, so that the protective caps are connected to the bolts and nuts. When mating, the remaining unfitted protective caps have never been lost, and even if the dimensions of each protective cap are large, all these protective caps are not held together and can be easily removed one after the other. Protective caps can be fitted onto bolts and nuts. Therefore, it becomes possible to efficiently fit the protective cap into the bolt/nut.
なお、本考案は上記したボルト並びにナツトの
保護以外にも、ボルトのみ、特にボルト頭部のみ
またはナツトのみの保護にも適用できる。 In addition to the protection of the bolts and nuts described above, the present invention can also be applied to the protection of only bolts, particularly only bolt heads, or only nuts.
第１図は鋳鉄管のメカニカルジヨイントを示説
明図、第２図は本考案に係るボルト・ナツト用保
護キヤツプを示す説明図、第３図Ａは本考案キヤ
ツプの使用例を示す説明図、第３図Ｂは第３図Ａ
におけるＢ−Ｂ断面説明図である。
図において、ａ，ａ…は保護キヤツプ、ｂ，ｂ
…は可撓性紐体である。
Fig. 1 is an explanatory diagram showing a mechanical joint of a cast iron pipe, Fig. 2 is an explanatory diagram showing a protective cap for bolts and nuts according to the present invention, and Fig. 3A is an explanatory diagram showing an example of use of the cap of the present invention. Figure 3B is Figure 3A
It is a BB cross-sectional explanatory view in . In the figure, a, a... are protective caps, b, b
... is a flexible string.
Claims (1)
た保護キヤツプの複数箇を相互に可撓性紐体で連
結したことを特徴とするボルト・ナツト用保護キ
ヤツプ。 A protective cap for bolts and nuts, characterized in that a plurality of protective caps having the same number of fastening members used in parallel are connected to each other by a flexible string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19733581U JPS58101012U (en) | 1981-12-28 | 1981-12-28 | Protective cap for bolts and nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19733581U JPS58101012U (en) | 1981-12-28 | 1981-12-28 | Protective cap for bolts and nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58101012U JPS58101012U (en) | 1983-07-09 |
| JPS634811Y2 true JPS634811Y2 (en) | 1988-02-08 |
Family
ID=30110555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19733581U Granted JPS58101012U (en) | 1981-12-28 | 1981-12-28 | Protective cap for bolts and nuts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58101012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007298049A (en) * | 2006-02-02 | 2007-11-15 | Cosmo Koki Co Ltd | Joint body |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04276872A (en) * | 1991-03-04 | 1992-10-01 | Matsushita Electric Ind Co Ltd | Pattern curve fitting method |
| JP2555043Y2 (en) * | 1991-05-24 | 1997-11-19 | 石川島播磨重工業株式会社 | Bolt and nut drop prevention device |
| JPH10184652A (en) * | 1996-12-25 | 1998-07-14 | Nitta Ind Corp | Fall preventing member and method thereof |
| JP4722719B2 (en) * | 2006-02-02 | 2011-07-13 | コスモ工機株式会社 | Joint body |
-
1981
- 1981-12-28 JP JP19733581U patent/JPS58101012U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007298049A (en) * | 2006-02-02 | 2007-11-15 | Cosmo Koki Co Ltd | Joint body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58101012U (en) | 1983-07-09 |
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