JP2520396Y2 - Washers, packing-mounted bolts and nuts, and fastening devices composed of them - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本案はボルトとナットに座金およびゴムパッキンを使
用状態で装着した座金、パッキン装着型ボルトおよびナ
ット並びにそれらからなる締結装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a washer in which a washer and a rubber packing are attached to a bolt and a nut, a packing-attached bolt and a nut, and a fastening device including them.

特に、地下鉄、下水道等のトンネル工事におけるセグ
メントの締結に使用する座金、パッキン装着型ボルト及
びナット並びにそれらからなる締結装置に関するもので
ある。In particular, the present invention relates to a washer used for fastening a segment in tunnel construction such as subways and sewers, a packing mounting type bolt and nut, and a fastening device including these.

（従来の技術） 従来、ボルトとナットとはねじ込んでセットにした状
態で、座金とパッキンとはそれぞれ別梱包で納入されて
いた。そのため、工事現場で締結の都度、人手によりボ
ルト基端に座金とパッキンとを挿嵌し、締結箇所にその
ボルトを挿嵌し、このボルト先端にパッキンと座金とを
挿嵌してナットで締付けて締結している。(Prior Art) Conventionally, a bolt and a nut were screwed into a set, and a washer and a packing were separately delivered. Therefore, every time the work is fastened at the construction site, a washer and packing are manually inserted into the bolt base end, the bolt is inserted into the fastening location, and the packing and washer are inserted into the bolt tip and tightened with a nut. Have concluded.

また、最近地下鉄、下水道等のトンネル工事におい
て、セグメント自動組立装置が開発され、この装置での
セグメントの締結には、ボルト、ナットの供給をボル
ト、ナットに座金とパッキンとを装着して行う必要が生
じている。In addition, an automatic segment assembly device has recently been developed in tunnel construction for subways, sewers, etc., and in order to fasten segments with this device, it is necessary to supply bolts and nuts by mounting bolts and nuts with washers and packing. Is occurring.

そのため、ボルト、ナットと座金とを溶接又は接着剤
で固定し、座金とパッキンとを接着剤で固定することが
一部採用されている。Therefore, it is partially adopted that the bolts and nuts and the washers are welded or fixed with an adhesive, and the washers and the packing are fixed with an adhesive.

さらに、特公昭45-24734号公報も開示されるが、この
公報のワッシャーでは、裏金に穴をあけるとき、筒部を
一定長さだけ裏金より突出させている。そして、このワ
ッシャーをボルトと共に締結部材の締付けに用いる場合
に、筒部の先端がゴム状のリングを突き抜け、締結部材
に当接する。そのため、筒部の先端と当接する締結部材
に傷を付けたり、締結部材表面に施した防錆皮膜を損傷
させるので、ゴム状のリングを接着または固着したワッ
シャーの他に固定具受入部材を必要としている。Furthermore, Japanese Patent Publication No. 45-24734 is also disclosed, but in the washer of this publication, when a hole is formed in the back metal, the tubular portion is projected from the back metal by a certain length. When this washer is used together with a bolt to tighten the fastening member, the tip of the tubular portion penetrates the rubber ring and contacts the fastening member. Therefore, a fastener receiving member is required in addition to the washer to which a rubber ring is adhered or fixed because it scratches the fastening member that abuts the tip of the tubular portion or damages the rustproof coating applied to the surface of the fastening member. I am trying.

（考案が解決しようとする課題） 従来のねじ込んだ状態で納入されたボルトとナット
に、別梱包の座金とパッキンを工事現場でセグメントの
締結に当たって、人手により挿嵌するものでは、ボルト
・ナット、座金およびパッキンの保管、管理に手間がか
かるという問題点があった。その上に、締結作業に多大
な労力を費さねばならないという欠点があった。(Problems to be solved by the invention) For bolts and nuts that have been delivered in a conventional screwed state, washers and packing separately packed are manually inserted when fastening segments at the construction site. There was a problem that it took time to store and manage the washers and packing. In addition, there is a drawback that a lot of labor is required for the fastening work.

また、座金、パッキンを溶接又は接着剤でボルトとナ
ットとに固定したものでは、ナットを回動させてボルト
に締付ける際に、座金およびパッキンはナットと共に回
転し、ボルト頭を固定しなければ締結ができないという
問題点があった。If the washer and packing are fixed to the bolt and nut with welding or adhesive, the washer and packing rotate together with the nut when the nut is rotated and tightened to the bolt. There was a problem that I could not do it.

さらに、防錆防食のために表面にめっき又は樹脂コー
ティングを施したボルト、ナットおよび座金を使用する
場合に、溶接を施せば、その防錆防食性能は劣化する欠
点があった。Further, when using bolts, nuts, and washers whose surface is plated or resin-coated for rust prevention and corrosion, if welding is applied, the rust prevention and corrosion prevention performance is deteriorated.

また、特公昭45-24734号公報は、ボルトと共に締結部
材の締付けに用いる場合に、ゴム状リングを接着または
固着したワッシャーの他に固定具受入部材を必要とす
る。そのため、この種ボルトによる締結作業を煩雑化
し、固定具受入部材を必要とする分だけコスト高になる
という欠点があった。Further, JP-B-45-24734 requires a fixture receiving member in addition to a washer to which a rubber ring is adhered or fixed when used for tightening a fastening member together with a bolt. Therefore, there has been a drawback that the fastening work with this type of bolt is complicated and the cost is increased by the amount of the fixture receiving member required.

本案はボルトおよびナットのそれぞれに座金とゴムパ
ッキンを組込み挿着し、前記問題点および諸欠点を除去
した座金、パッキン装着型ボルト及びナット並びにそれ
らからなる締結装置を提供することを目的とする。An object of the present invention is to provide a washer, a packing mounting type bolt and nut, and a fastening device including them, in which a washer and a rubber packing are incorporated and attached to each of the bolt and the nut, and the problems and drawbacks are eliminated.

（課題を解決するための手段） この目的を達成するために、本案においては、ボルト
の軸部より大きい平座金における内径の一面に面取り部
を設ける。(Means for Solving the Problem) In order to achieve this object, in the present invention, a chamfered portion is provided on one surface of the inner diameter of a flat washer that is larger than the shaft portion of the bolt.

この面取り部に嵌入するテーパ基部となした基端と、
平座金の内径に嵌入する円形中間部となした中間と、こ
の円形中間部より大径の基端部を有し、先細のテーパ先
端部となした先端とから成り、その中心部にボルトの軸
部より僅かに小径のボルト孔を穿設したゴムパッキンを
設ける。A base end that is a tapered base that fits into this chamfer,
It consists of a middle part that is a circular middle part that fits into the inner diameter of a flat washer, and a tip that has a taper tip part that has a base end part that is larger in diameter than this circular middle part and that is a tapered tip part. Provide a rubber packing with a bolt hole slightly smaller than the shaft.

このゴムパッキンのテーパ先端部を平座金の内径内に
面取り部から挿嵌せしめ、ゴムパッキンの円形中心部を
平座金の内径に挿嵌せしめる。そして、テーパ基部を平
座金の面取り部に挿嵌せしめてゴムパッキンを座金に嵌
入させ、ゴムパッキンのボルト孔にボルトの軸部を挿通
せしめ、係止させる構造とする。The taper tip of this rubber packing is inserted into the inner diameter of the flat washer from the chamfer, and the circular center of the rubber packing is inserted into the inner diameter of the flat washer. Then, the taper base portion is inserted into the chamfered portion of the flat washer to insert the rubber packing into the washer, and the shaft portion of the bolt is inserted into the bolt hole of the rubber packing so as to be locked.

また、ボルトの軸部より大きい平座金における内径の
一面に面取り部を設け、このボルトに螺合するナットの
座面にナットのねじ孔より大径の基端部を有し、座面内
方が基端部より大径となったテーパ孔を設ける。In addition, a chamfer is provided on one surface of the inner diameter of a flat washer that is larger than the shaft of the bolt, and the seat surface of the nut that is screwed into this bolt has a base end that is larger than the screw hole of the nut. Provide a tapered hole with a larger diameter than the base end.

このテーパ孔に嵌入するテーパ基部となした基端と、
座金の内径に嵌入する円形中間部となした中間と、この
円形中間部より大径の前記座金の面取り部に嵌入する基
端部を有し、先細のテーパ先端部となした先端とから成
るゴムパッキンを設ける。A base end that is a taper base that fits into this taper hole,
The washer has a circular middle portion that fits into the inner diameter of the washer, and a base end portion that fits into the chamfered portion of the washer having a larger diameter than the circular middle portion, and has a tapered tip end portion. Provide rubber packing.

そして、テーパ基部、円形中間部およびテーパ先端部
の中心部にボルトの軸部より僅かに小径のボルト孔を穿
設した。Then, a bolt hole having a diameter slightly smaller than the shaft portion of the bolt was bored in the central portion of the tapered base portion, the circular intermediate portion and the tapered tip portion.

このゴムパッキンの弾性を利用してテーパ基部をナッ
トのテーパ孔に挿嵌せしめ、ゴムパッキン先端をナット
の座面とより突出させ、座金の面取り部の反対側内径に
ゴムパッキンのテーパ先端部を嵌入せしめ、係止させる
構造とする。Using the elasticity of this rubber packing, insert the taper base into the taper hole of the nut, project the tip of the rubber packing further from the seat surface of the nut, and insert the taper tip of the rubber packing into the inner diameter of the side opposite to the chamfered part of the washer. The structure is such that it is fitted and locked.

さらに、前記した座金、パッキン装着型ボルトと座
金、パッキン装着型ナットを螺合したものである。Further, the washer and packing mounting type bolt and the washer and packing mounting type nut described above are screwed together.

（作用） 二枚の平座金２に穿設したボルト１のボルト軸部1aよ
り大きな内径３に面取り部５を設け、ナット４の座面６
に基端部8aがナット４のねじ孔７より大きく、座面６の
内方がこの基端部8aより大きくなったテーパ孔８を穿設
する。(Operation) The chamfered portion 5 is provided on the inner diameter 3 larger than the bolt shaft portion 1a of the bolt 1 formed in the two flat washers 2, and the bearing surface 6 of the nut 4 is provided.
The base end 8a is larger than the screw hole 7 of the nut 4, and the inside of the seat surface 6 is formed with a taper hole 8 larger than the base end 8a.

そして、座金２の面取り部５に嵌入するテーパ基部９
と平座金２の内径３に挿嵌する円形中間部11と、この円
形中間部11より大径の基端部12aを有し、先端が先細と
なったテーパ先端部12とから成るゴムパッキン15を設け
る。Then, the taper base portion 9 fitted into the chamfered portion 5 of the washer 2
A rubber packing 15 composed of a circular intermediate portion 11 to be inserted into the inner diameter 3 of the flat washer 2 and a tapered tip portion 12 having a tapered end portion 12a having a base end portion 12a having a diameter larger than that of the circular intermediate portion 11. To provide.

さらに、それぞれのテーパ基部９、円形中間部11、テ
ーパ先端部12を貫通して中心部にボルト軸部1aより僅か
に小さな内径のボルト孔14を穿設する。Further, a bolt hole 14 having an inner diameter slightly smaller than that of the bolt shaft portion 1a is bored in the central portion through the respective taper base portion 9, circular intermediate portion 11 and taper tip portion 12.

また、ナット４のテーパ孔８に嵌入するテーパ基部10
と平座金２の内径３に挿嵌する円形中間部11と、この円
形中間部11より大径の座金２の面取り部５に嵌入する基
端部13aを有し、先端が先細となったテーパ先端部13と
から成るゴムパッキン16を設ける。In addition, the taper base 10 that is fitted into the taper hole 8 of the nut 4
And a circular intermediate portion 11 to be fitted into the inner diameter 3 of the flat washer 2 and a base end portion 13a to be fitted into the chamfered portion 5 of the washer 2 having a diameter larger than the circular intermediate portion 11, and the tapered tip is tapered. A rubber packing (16) including a tip portion (13) is provided.

さらに、それぞれのテーパ基部10、円形中間部11、テ
ーパ先端部13を貫通して中心部にボルト軸部1aより僅か
に小さな内径のボルト孔14を穿設したものである。Further, a bolt hole 14 having an inner diameter slightly smaller than that of the bolt shaft portion 1a is bored in the central portion through the respective tapered base portion 10, circular intermediate portion 11 and tapered tip portion 13.

ゴムの弾性を利用して、一方のゴムパッキン15のテー
パ先端部12を一方の座金２の面取り部５にあてがい、円
形中間部11にこの座金２の内径３を挿嵌する。すると、
ゴムパッキン15のテーパ基部９はこの座金２の面取り部
５に装入する。また、テーパ先端部12をこの座金２の面
取り部５の反対面より突出し、座金２の面取り部５の反
対面における内径３外周に係止し、第４図に示すように
ゴムパッキン15は安定して座金２に挿嵌され、固着され
る。このゴムパッキン15を挿嵌した座金２の面取り部５
を設けた面側のゴムパッキン15のボルト孔14にボルト１
の先端部を挿入し、ボルト１を挿嵌すれば、第１図に示
すようにこの座金２はゴムパッキン15と共にボルト１に
装着される。Using the elasticity of rubber, the taper tip portion 12 of one rubber packing 15 is applied to the chamfered portion 5 of one washer 2, and the inner diameter 3 of this washer 2 is inserted into the circular intermediate portion 11. Then
The taper base portion 9 of the rubber packing 15 is inserted into the chamfered portion 5 of the washer 2. Further, the taper tip portion 12 is projected from the surface opposite to the chamfered portion 5 of the washer 2 and locked to the outer circumference of the inner diameter 3 on the surface opposite to the chamfered portion 5 of the washer 2, and the rubber packing 15 is stabilized as shown in FIG. Then, the washer 2 is fitted and fixed. Chamfer 5 of washer 2 with rubber packing 15 inserted
Bolt 1 in the bolt hole 14 of the rubber packing 15 on the side where the
The washer 2 is mounted on the bolt 1 together with the rubber packing 15 as shown in FIG.

また、同様にゴムの弾性を利用して、他方のゴムパッ
キン16のテーパ基部10をナット４の座金６にあてがい、
この座金６の基端部8aよりテーパ孔８に嵌入する。する
と、第７図に示すようにゴムパッキン16は安定してナッ
ト４に挿嵌され、固着される。他方の座金２の面取り部
５を設けた面の反対面からナット４の座面６より突出し
たゴムパッキン16のテーパ先端部13を嵌入して円形中間
部11に挿嵌すれば、第７図に二点鎖線で示すようにこの
座金２はゴムパッキン16と共にナット４に挿着される。Similarly, the elasticity of rubber is used to apply the taper base 10 of the other rubber packing 16 to the washer 6 of the nut 4,
The washer 6 is fitted into the tapered hole 8 from the base end 8a. Then, as shown in FIG. 7, the rubber packing 16 is stably inserted and fixed to the nut 4. If the taper tip portion 13 of the rubber packing 16 protruding from the seat surface 6 of the nut 4 is inserted from the surface opposite to the surface of the other washer 2 on which the chamfered portion 5 is provided, and is inserted into the circular intermediate portion 11, it is shown in FIG. The washer 2 is inserted into the nut 4 together with the rubber packing 16 as shown by the chain double-dashed line.

（実施例） 以下に本案に係る座金、パッキン装置型ボルト及びナ
ット並びにそれらからなる締結装置の実施の一例を示し
た添付図面に基づいて詳細に説明する。(Example) Below, it demonstrates in detail based on the accompanying drawing which showed an example of implementation of the washer concerning this invention, a packing apparatus type | mold bolt and nut, and the fastening device which consists of them.

第１図は本案のボルトとナットをセットした状態を示
す側面図、第２図は座金の面取り部を設けた面から見た
平面図、第３図はゴムパッキンを嵌入した状態を示す座
金の同平面図、第４図は第３図Ａ−Ａ線断面図を示す。
第５図はナットを座面方向から見た平面図、第６図はゴ
ムパッキンを嵌入した状態のナットを座面方向から見た
平面図、第７図は第６図のＢ−Ｂ線断面図を示すもので
ある。FIG. 1 is a side view showing a state in which a bolt and a nut of the present invention are set, FIG. 2 is a plan view seen from a surface provided with a chamfered portion of a washer, and FIG. 3 is a washer showing a state in which a rubber packing is fitted. The plan view and FIG. 4 are sectional views taken along the line AA in FIG.
FIG. 5 is a plan view of the nut as seen from the seat surface direction, FIG. 6 is a plan view of the nut with the rubber packing inserted as seen from the seat surface direction, and FIG. 7 is a cross section taken along the line BB of FIG. It shows a figure.

第１図に示す符号１は六角頭付きボルトで、1aはこの
六角頭付きボルト１の軸部である。Reference numeral 1 shown in FIG. 1 is a hexagonal headed bolt, and 1a is a shaft portion of the hexagonal headed bolt 1.

符号２は平座金で、六角頭付きボルト１の軸部1aより
かなり大きな内径３を穿設したもので、符号４は六角頭
付きボルト１に螺合する六角ナットである。Reference numeral 2 is a plain washer, and an inner diameter 3 is bored which is considerably larger than the shaft portion 1a of the hexagon head bolt 1, and reference numeral 4 is a hexagon nut screwed to the hexagon head bolt 1.

そして、符号５は平座金２の内径３の一面に施した面
取り部で、後述のゴムパッキン15のテーパ基部９を嵌入
したり、ゴムパッキン16のテーパ先端部13を嵌入して係
止するためのものである。Reference numeral 5 denotes a chamfered portion provided on one surface of the inner diameter 3 of the plain washer 2 for inserting a taper base portion 9 of a rubber packing 15 described later or inserting and locking a taper tip end portion 13 of a rubber packing 16. belongs to.

符号８はナット４の座面６よりナット４の内部に穿設
したテーパ孔で、ナット座面６の基端部8aをナット４の
ねじ孔７より大きくし、前記した平座金２の内径３と等
しくし、この座面６より内部を基端部8aより大径とした
ものである。Reference numeral 8 is a taper hole bored inside the nut 4 from the seat surface 6 of the nut 4, and the base end portion 8a of the nut seat surface 6 is made larger than the screw hole 7 of the nut 4 so that the inner diameter 3 of the flat washer 2 is 3 And the diameter inside the seat surface 6 is larger than that of the base end portion 8a.

符号15,16は含水時にその体積が1.5倍となる水膨張性
ゴム等で作製したゴムパッキンである。そして、一方の
ゴムパッキン15は平座金２の面取り部５に嵌入するテー
パ基部９と平座金２の内径３に挿嵌する円形中間部11と
第４図に示すように円形中間部11、即ち平座金２の内径
３より大径の基端部12aから先端が先細になるテーパ先
端部12とから構成したものである。他方のゴムパッキン
16はナット４の座面６のテーパ孔８に嵌入するテーパ基
部10と平座金２の内径３に挿嵌する円形中間部11とこの
円形中間部11、即ち平座金２の内径３より面取り部５に
沿ってテーパ状に拡大する基端部13aとする。そして、
この基端部13a先端から先細になるテーパ先端部13を設
けたものである。Reference numerals 15 and 16 are rubber packings made of water-expandable rubber or the like, the volume of which becomes 1.5 times when water is contained. One rubber packing 15 is a taper base portion 9 which is fitted into the chamfered portion 5 of the flat washer 2, a circular intermediate portion 11 which is fitted into the inner diameter 3 of the plain washer 2 and a circular intermediate portion 11 as shown in FIG. The flat washer 2 is composed of a base end portion 12a having a diameter larger than the inner diameter 3 and a taper tip end portion 12 having a tapered tip. Other rubber packing
Reference numeral 16 denotes a taper base 10 which is fitted into the tapered hole 8 of the bearing surface 6 of the nut 4, a circular intermediate portion 11 which is fitted into the inner diameter 3 of the flat washer 2 and the circular intermediate portion 11, that is, a chamfered portion from the inner diameter 3 of the flat washer 2. The base end portion 13a is enlarged in a tapered shape along the line 5. And
A taper tip portion 13 that is tapered from the tip of the base end portion 13a is provided.

符号14,14はゴムパッキン15,16のそれぞれテーパ基部
9,10、円形中間部11、11およびテーパ先端部12,13の中
心部を貫通して、ボルト軸部1aより僅かに小さな内径に
穿設したボルト孔である。Reference numerals 14 and 14 are taper bases of the rubber packings 15 and 16, respectively.
These bolt holes are bored through the central parts of the circular intermediate parts 9, 10 and the circular intermediate parts 11, 11 and the tapered tip parts 12, 13 to have an inner diameter slightly smaller than that of the bolt shaft part 1a.

これを使用するに当たっては、一方のゴムパッキン15
のテーパ先端部12を一方の平座金２の面取り部５の側か
ら内径３に挿嵌し、このテーパ基部９を面取り部５に、
円形中間部11を内径３にそれぞれ嵌入する。そして、こ
の平座金２をゴムパッキン15のテーパ基部９とテーパ先
端部12間に第４図に示すように挟持する。To use this, use one rubber packing 15
The taper tip portion 12 is inserted into the inner diameter 3 from the chamfered portion 5 side of the one flat washer 2, and the taper base portion 9 is attached to the chamfered portion 5.
The circular intermediate portions 11 are fitted into the inner diameters 3, respectively. Then, the plain washer 2 is sandwiched between the taper base portion 9 and the taper tip portion 12 of the rubber packing 15 as shown in FIG.

そして、このゴムパッキン15のボルト軸部1aより僅か
に小さなボルト孔14にボルト１先端をゴムパッキン15の
テーパ基部９方向から挿通すれば、第１図に示すように
ボルト１に座金２とゴムパッキン15が安定に挿着され
る。Then, by inserting the tip of the bolt 1 into the bolt hole 14 slightly smaller than the bolt shaft portion 1a of the rubber packing 15 from the direction of the taper base portion 9 of the rubber packing 15, the washer 2 and the rubber 2 are attached to the bolt 1 as shown in FIG. The packing 15 is stably inserted.

また、他方のゴムパッキン16のテーパ基部10をナット
４の座面６のテーパ孔８に基端部8aから挿嵌し、ナット
４の座面６から突出する円形中間部11とテーパ先端部13
に別の平座金２を、面取り部５を施した反対面から挿嵌
する。Further, the taper base portion 10 of the other rubber packing 16 is inserted into the taper hole 8 of the seat surface 6 of the nut 4 from the base end portion 8a, and the circular intermediate portion 11 and the taper tip portion 13 protruding from the seat surface 6 of the nut 4 are inserted.
Then, another plain washer 2 is inserted from the opposite surface on which the chamfered portion 5 is provided.

こうすることにより、第７図に示すように、ナット４
にゴムパッキン16および平座金２が安定に挿着される。By doing so, as shown in FIG. 7, the nut 4
The rubber packing 16 and the flat washer 2 are stably inserted in the.

（考案の効果） 以上のように、座金２およびゴムパッキン15,16がボ
ルト１とナット４に安定に挿着され、第１図に示す状態
で納入されるので、ボルト・ナット、座金およびゴムパ
ッキンの保管、管理が容易となる。(Effect of the Invention) As described above, since the washer 2 and the rubber packings 15 and 16 are stably inserted into the bolt 1 and the nut 4 and delivered in the state shown in FIG. 1, the bolt / nut, the washer and the rubber are provided. The packing can be stored and managed easily.

また、地下鉄、下水道等のトンネル工事でのセグメン
トの締結時において、工事現場でボルトにその都度座金
およびゴムパッキンを挿入する必要がなく、座金２およ
びゴムパッキン15,16がボルト１とナット４に挿着され
ているので、締結作業の効率化が可能である。In addition, it is not necessary to insert washers and rubber packings into the bolts at the construction site each time a segment is connected for tunnel construction such as subways and sewers, and washers 2 and rubber packings 15 and 16 are attached to bolts 1 and nuts 4 respectively. Since it is inserted, the efficiency of fastening work can be improved.

さらに、座金２およびゴムパッキン15,16がボルト１
とナット４に挿着されているので、最近開発されたセグ
メント自動組立装置に供給するボルトとナットとして最
適となる。Further, the washer 2 and the rubber packings 15 and 16 are bolts 1.
Since it is attached to the nut 4, it is optimal as a bolt and nut to be supplied to the recently developed automatic segment assembly device.

また溶接工程を伴わないから、表面にめっき又は樹脂
コーティングを施したボルト、ナットおよび座金の防錆
防食性能を劣化させることがない。Further, since the welding process is not involved, the anticorrosion and anticorrosion performance of the bolts, nuts and washers whose surfaces are plated or resin coated is not deteriorated.

【図面の簡単な説明】[Brief description of drawings]

添付図面は本案実施の一例を示したもので、第１図はボ
ルトとナットをセットした状態を示す側面図で、第２図
は座金のみの面取り部を設けた面から見た平面図で、第
３図は座金にゴムパッキンを嵌入した状態を示す同平面
図である。第４図は第３図のＡ−Ａ線拡大断面図を示
し、第５図はナットを座面方向から見た平面図、第６図
はナットにゴムパッキンを嵌入した状態を示す座面方向
から見た平面図、第７図は第６図のＢ−Ｂ線拡大断面図
を示すものである。 １……ボルト、1a……軸部、２……平座金、３……内
径、４……ナット、５……面取り部、６……ナット座
面、７……ねじ孔、８……テーパ孔、8a……基端部、9,
10……テーパ基部、11……円形中間部、12,13……テー
パ先端部、12a,13a……基端部、14……ボルト孔、15,16
……ゴムパッキン。The attached drawings show an example of the implementation of the present invention, FIG. 1 is a side view showing a state where bolts and nuts are set, and FIG. 2 is a plan view seen from a surface provided with a chamfer only for a washer, FIG. 3 is a plan view showing a state where the rubber packing is fitted in the washer. 4 is an enlarged sectional view taken along the line AA of FIG. 3, FIG. 5 is a plan view of the nut as seen from the seat surface direction, and FIG. 6 is a seat surface direction showing a state in which a rubber packing is fitted into the nut. FIG. 7 is a plan view seen from above, and FIG. 7 is an enlarged cross-sectional view taken along the line BB of FIG. 1 ... Bolt, 1a ... Shaft part, 2 ... Plain washer, 3 ... Inner diameter, 4 ... Nut, 5 ... Chamfer part, 6 ... Nut seat surface, 7 ... Screw hole, 8 ... Taper Hole, 8a ... Base end, 9,
10 …… Tapered base, 11 …… Circular intermediate part, 12,13 …… Tapered tip, 12a, 13a …… Base end, 14 …… Bolt hole, 15,16
…… Rubber packing.

Claims (3)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項１】ボルト１の軸部1aより大きい平座金２にお
ける内径３の一面に面取り部５を設け、この面取り部５
に嵌入するテーパ基部９となした基端と、平座金２の内
径３に嵌入する円形中間部11となした中間と、この円形
中間部11より大径の基端部12aを有し、先端を先細のテ
ーパ先端部12となした先端とから成り、その中心部にボ
ルト１の軸部1aより僅かに小径のボルト孔14を穿設した
ゴムパッキン15を設け、このゴムパッキン15のテーパ先
端部12を平座金２の内径３内に面取り部５から挿嵌せし
め、ゴムパッキン15の円形中間部11を平座金２の内径３
に挿嵌せしめ、テーパ基部９を平座金２の面取り部５に
挿嵌せしめてゴムパッキン15を座金２に嵌入させ、ゴム
パッキン15のボルト孔14にボルト１の軸部1aを挿通せし
め、係止させる構造よりなる座金、パッキン装着型ボル
ト。1. A chamfered portion 5 is provided on one surface of an inner diameter 3 of a flat washer 2 larger than a shaft portion 1a of a bolt 1, and the chamfered portion 5 is provided.
Has a base end which is a tapered base portion 9 which is fitted to the inner surface, a middle portion which is a circular middle portion 11 which is fitted into the inner diameter 3 of the flat washer 2, and a base end portion 12a which is larger in diameter than the circular middle portion 11. Is provided with a tapered tapered tip portion 12 and a rubber packing 15 in which a bolt hole 14 having a diameter slightly smaller than the shaft portion 1a of the bolt 1 is bored is provided at the center thereof, and the taper tip of the rubber packing 15 is provided. Insert the portion 12 into the inner diameter 3 of the flat washer 2 from the chamfered portion 5, and insert the circular intermediate portion 11 of the rubber packing 15 into the inner diameter 3 of the flat washer 2.
Insert the taper base portion 9 into the chamfered portion 5 of the flat washer 2 to fit the rubber packing 15 into the washer 2, and insert the shaft portion 1a of the bolt 1 into the bolt hole 14 of the rubber packing 15 A washer and packing mounting type bolt with a structure to stop it. 【請求項２】ボルト１の軸部1aより大きい平座金２にお
ける内径３の一面に面取り部５を設け、このボルト１に
螺合するナット４の座面６にナット４のねじ孔７より大
径の基端部8aを有し、座面６内方が基端部8aより大径と
なったテーパ孔８を設け、このテーパ孔８に嵌入するテ
ーパ基部10となした基端と、座金２の内径３に嵌入する
円形中間部11となした中間と、この円形中間部11より大
径の前記座金２の面取り部５に嵌入する基端部13aを有
し、先端を先細のテーパ先端部13となした先端とから成
り、その中心部にボルト１の軸部1aより僅かに小径のボ
ルト孔14を穿設したゴムパッキン16を設け、このゴムパ
ッキン16のテーパ基部10をナット４のテーパ孔８に挿嵌
せしめ、ゴムパッキン16先端をナット４の座面６より突
出させ、座金２の面取り部５の反対側内径３をゴムパッ
キン16のテーパ先端部13に嵌入せしめ、係止させる構造
からなる座金、パッキン装着型ナット。2. A chamfered portion 5 is provided on one surface of an inner diameter 3 of a flat washer 2 which is larger than a shaft portion 1a of a bolt 1, and a bearing surface 6 of a nut 4 screwed to the bolt 1 is larger than a screw hole 7 of the nut 4. A base end having a diameter of a base end portion 8a, and a taper hole 8 having a larger diameter inside the seat surface 6 than the base end portion 8a is provided, and a base end which forms a taper base portion 10 to be fitted into the taper hole 8; 2 has an intermediate portion which is a circular intermediate portion 11 which is fitted in the inner diameter 3 and a base end portion 13a which is fitted in the chamfered portion 5 of the washer 2 having a diameter larger than that of the circular intermediate portion 11 and which has a tapered tip end. A rubber packing 16 which is composed of a distal end formed as a portion 13 and has a bolt hole 14 having a diameter slightly smaller than the shaft portion 1a of the bolt 1 is provided in the center thereof, and the taper base portion 10 of the rubber packing 16 is attached to the nut 4 of the nut 4. The rubber packing 16 is inserted into the tapered hole 8 and the tip of the rubber packing 16 is projected from the seat surface 6 of the nut 4, and the chamfered portion 5 of the washer 2 is inserted. The opposite inner diameter 3 brought fitted to the tapered distal portion 13 of the rubber packing 16, a washer made of locked to the structure, the packing-mounted nut. 【請求項３】請求項１記載のボルトと請求項２記載のナ
ットを螺合してなる締結装置。3. A fastening device formed by screwing the bolt according to claim 1 and the nut according to claim 2 together.