JP2007290062A - Bolt tightening tool provided with tightening adapter - Google Patents

Bolt tightening tool provided with tightening adapter Download PDF

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JP2007290062A
JP2007290062A JP2006119331A JP2006119331A JP2007290062A JP 2007290062 A JP2007290062 A JP 2007290062A JP 2006119331 A JP2006119331 A JP 2006119331A JP 2006119331 A JP2006119331 A JP 2006119331A JP 2007290062 A JP2007290062 A JP 2007290062A
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tightening
bolt
torque wrench
spanner
adapter
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JP5101034B2 (en
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Taro Tsukamoto
太郎 塚本
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bolt tightening tool in simple and low-cost structure, which enables a user to extremely easily carry out tightening work by keeping tightening torque of a locking bolt at a desired value even in a narrow place around a tightening part of an exhaust manifold, for example. <P>SOLUTION: The bolt tightening tool provided with a tightening adapter is installed on a torque wrench to transmit tightening force added by the torque wrench to the bolt. The tightening adapter comprises an upper end part to compose an engagement part with a tip rotation part of the torque wrench to simultaneously rotate, and a spanner part at a lower end part to be engaged with the bolt. The engagement part and the spanner part are coupled to each other by a connection part formed in such a bent form as to be capable of avoiding interference with things around them. The rotation center of the engagement center is set to match the rotation center of the spanner part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、エンジンの排気マニホールド締付けボルト用等に適用され、トルクレンチに取り付けられて該トルクレンチにより加えられる締付け力を、締付けボルトに係合されるスパナ部に伝達する締付けアダプターを備えた排気マニホールドのボルト締付け工具に関する。   The present invention is applied to an exhaust manifold tightening bolt of an engine, etc., and is provided with a tightening adapter that is attached to a torque wrench and transmits a tightening force applied by the torque wrench to a spanner engaged with the tightening bolt. The present invention relates to a bolt tightening tool for a manifold.

ディーゼルエンジンの排気マニホールドは、シリンダヘッドの上面に複数の締付けボルトによって締付け、固定される。かかる排気マニホールドの締付けボルトは、高温の排気マニホールドを締付けるうえに、引張強度が比較的低い耐熱鋼材で構成されていることから、締付けトルクが過大になると締付けボルトの折損を招き、また締付けトルクが過小になると排気マニホールドとシリンダヘッドの上面との間の締付面でのガス洩れの発生を招く。このため、かかる排気マニホールド締付けボルトは、締付けトルクを所要締付けトルク範囲に精度よく保持する必要がある。   An exhaust manifold of a diesel engine is fastened and fixed to a top surface of a cylinder head by a plurality of fastening bolts. These exhaust manifold tightening bolts are made of a heat-resistant steel material that has a relatively low tensile strength in addition to tightening the high-temperature exhaust manifold, so if the tightening torque is excessive, the tightening bolt will be broken and the tightening torque will If it is too small, gas leakage will occur at the clamping surface between the exhaust manifold and the upper surface of the cylinder head. For this reason, it is necessary for such an exhaust manifold tightening bolt to accurately maintain the tightening torque within the required tightening torque range.

締付けボルトの締付けトルクを、高精度に保持する手段の一つに、特許文献１（特開平９−２８５９７３号公報）で提供されている技術がある。
かかる技術においては、締付け工具のソケットに歪ゲージを貼着して、ボルト締付け時に該歪ゲージで検出された歪み量をトルク変換回路で締付けトルクに変換し、該締付けトルクを表示値を見ながら、該締付けトルクが所要値にすべく締付けトルクの管理を行なうように構成されている。 One of the means for maintaining the tightening torque of the tightening bolt with high accuracy is a technique provided in Patent Document 1 (Japanese Patent Laid-Open No. 9-285972).
In such a technique, a strain gauge is attached to a socket of a tightening tool, the amount of strain detected by the strain gauge at the time of bolt tightening is converted into a tightening torque by a torque conversion circuit, and the tightening torque is viewed while viewing the displayed value. The tightening torque is managed so that the tightening torque becomes a required value.

特開平９−２８５９７３号公報JP-A-9-285773

前記のように、ディーゼルエンジンの排気マニホールドの締付けボルトは、高温の排気マニホールドを、該締付けボルトの過大締付けトルクによる折損及び過小締付けトルクによる締付面でのガス洩れの発生の双方を回避するため、該締付けボルトの締付け時に、締付けトルクを所要締付けトルク範囲に精度よく保持する必要がある。
然るに、排気マニホールドのシリンダヘッド上面への締付け部の周辺は、他のエンジン部品が近接しているため、前記特許文献１（特開平９−２８５９７３号公報）のように締付け工具のソケットに歪ゲージを貼着し、歪み量を検出してトルク変換回路に入力するという大掛かりな装置を設置するためのスペースを確保するのは困難である。
さらには、かかる手段は、歪ゲージを貼着した締付け工具のソケット、歪み量をトルク変換するトルク変換回路、締付けトルクの算出値を表示する表示装置等を必要とするため、構造が複雑で装置が大掛かりとなって、装置コストが高くなるという、問題も抱えている。 As described above, the tightening bolt of the exhaust manifold of the diesel engine is used to avoid both the breakage due to the excessive tightening torque of the tightening bolt and the occurrence of gas leakage at the tightening surface due to the excessive tightening torque. When tightening the tightening bolt, it is necessary to keep the tightening torque within the required tightening torque range with high accuracy.
However, since other engine parts are close to the periphery of the tightening portion of the exhaust manifold on the cylinder head upper surface, a strain gauge is attached to the socket of the tightening tool as in Patent Document 1 (Japanese Patent Laid-Open No. 9-285993). It is difficult to secure a space for installing a large-scale device that attaches a sticker, detects the amount of distortion, and inputs it to the torque conversion circuit.
Further, such means requires a tightening tool socket with a strain gauge attached thereto, a torque conversion circuit for torque conversion of the strain amount, a display device for displaying the calculated value of the tightening torque, etc. However, there is a problem that the cost of the apparatus becomes high.

また、通常のトルクレンチを用いてボルトを締付ける手段にあっては、前記のように排気マニホールドのシリンダヘッド上面への締付け部の周辺では他のエンジン部品が近接しているため、通常のトルクレンチを挿入し、該トルクレンチを回動させて前記締付けボルトを所要締付けトルクに保持して締付けるためのスペースを確保するのも困難を伴う。   In addition, in the means for tightening the bolt using a normal torque wrench, as described above, other engine parts are close to the periphery of the tightening portion on the upper surface of the cylinder head of the exhaust manifold. It is also difficult to secure a space for inserting and tightening the torque wrench to hold the tightening bolt at a required tightening torque.

本発明はかかる従来技術の課題に鑑み、簡単かつ低コストの構造で以って、排気マニホールドの締付け部周辺のような狭隘な場所でも、締付けボルトの締付けトルクを所要値に保持して、きわめて容易に締付け作業を行い得るボルト締付け工具を提供することを目的とする。   In view of the problems of the prior art, the present invention has a simple and low-cost structure, and maintains the tightening torque of the tightening bolt at a required value even in a narrow place such as around the tightening portion of the exhaust manifold. An object of the present invention is to provide a bolt tightening tool that can be easily tightened.

本発明はかかる目的を達成するもので、トルクレンチに取り付けられて該トルクレンチにより加えられる締付け力をボルトに伝達する締付けアダプターを備えたボルト締付け工具であって、前記締付けアダプターは、その上端部と前記トルクレンチの先端回転部とで同時回転可能な係合部を構成するとともに、下端部に前記ボルトに係合されるスパナ部を固定し、前記係合部とスパナ部とを周囲の介在物との干渉を回避可能な曲状に形成した連結部で結合し、さらに前記係合部の回転中心と前記スパナ部の回転中心とを一致させたことを特徴とする（請求項１）。   The present invention achieves such an object, and is a bolt tightening tool provided with a tightening adapter that is attached to a torque wrench and transmits a tightening force applied by the torque wrench to the bolt, and the tightening adapter has an upper end portion thereof. And a torque rotating wrench tip rotating portion that constitutes an engaging portion that can be rotated simultaneously, and a spanner portion that is engaged with the bolt is fixed to the lower end portion, and the engaging portion and the spanner portion are interposed between the surroundings. The coupling portion is formed in a curved shape capable of avoiding interference with an object, and the rotation center of the engagement portion is aligned with the rotation center of the spanner portion (claim 1).

また、かかる締付けアダプターを備えたボルト締付け工具を、排気マニホールドの締付けのボルト締付け工具に適用した発明は、トルクレンチに取り付けられて該トルクレンチにより加えられる締付け力を、排気マニホールドのフランジ部をシリンダヘッド等のエンジン部材に締付ける排気マニホールド締付けボルトに伝達する締付けアダプターを備えたボルト締付け工具であって、前記締付けアダプターは、その上端部と前記トルクレンチの先端回転部とで同時回転可能な係合部を構成するとともに、下端部に前記締付けボルトに係合されるスパナ部を固定し、前記係合部とスパナ部とを周囲のエンジン部材との干渉を回避可能な曲状に形成した連結部で結合し、さらに前記係合部の回転中心と前記スパナ部の回転中心とを一致させたことを特徴とする（請求項３）。   Further, the invention in which the bolt tightening tool having such a tightening adapter is applied to the bolt tightening tool for exhaust manifold tightening is applied to the torque wrench and the tightening force applied by the torque wrench is applied to the flange portion of the exhaust manifold to the cylinder. A bolt tightening tool including a tightening adapter that transmits to an exhaust manifold tightening bolt that is tightened to an engine member such as a head, and the tightening adapter is an engagement that can be rotated simultaneously by an upper end portion thereof and a tip rotating portion of the torque wrench. And a spanner that is engaged with the tightening bolt at the lower end, and the engaging portion and the spanner are formed in a curved shape that can avoid interference with surrounding engine members. And the rotation center of the engagement portion and the rotation center of the spanner portion are matched. Wherein (claim 3).

また、前記発明において、好ましくは、前記連結部は、略水平方向に延びるアーム部と該アーム部から下方に曲状に延びる棒状の連結棒とにより略コの字状に形成する（請求項２）。   In the present invention, preferably, the connecting portion is formed in a substantially U shape by an arm portion extending in a substantially horizontal direction and a rod-like connecting rod extending downwardly from the arm portion. ).

本発明によれば、排気マニホールドをエンジン部材に締付ける排気マニホールド締付けボルト等のボルトを締付けるためのトルクレンチに取り付けられる締付けアダプターを、これの上端部とトルクレンチの先端回転部とで同時回転可能に形成した係合部と締付けボルトに係合されるスパナ部との間を、エンジン部品等の周囲の介在物との干渉を回避可能な曲状に形成された連結部で結合して、好ましくは略コの字状に形成し（請求項２）、且つ前記係合部の回転中心と前記スパナ部の回転中心とを一致させて構成したので（請求項１、請求項３）、排気マニホールドのシリンダヘッド上面への締付けボルト周辺のように他のエンジン部品が近接していて、通常のトルクレンチでは回動範囲が取れないような狭隘な場所であっても、該締付けボルトの周辺には設置スペースが小さくて済むスパナ部を配置して、該スパナ部をエンジン部品等の周囲の介在物との干渉を避けるように形成された連結部によって、前記狭隘な場所の上方に配置された該連結部の上端部とトルクレンチの先端回転部とで同時回転可能に形成した係合部に連結したので、トルクレンチを回動可能な部位に配置してエンジン部品等の周囲の介在物に障害されることなく容易に締付けボルトの締付け作業を行うことができる。   According to the present invention, a tightening adapter attached to a torque wrench for tightening a bolt such as an exhaust manifold tightening bolt for fastening an exhaust manifold to an engine member can be rotated at the same time by an upper end portion of the tightening adapter and a tip rotating portion of the torque wrench. Preferably, the connecting portion formed between the formed engaging portion and the spanner portion engaged with the tightening bolt is coupled with a connecting portion formed in a curved shape capable of avoiding interference with surrounding inclusions such as engine parts. Since it is formed in a substantially U-shape (Claim 2), and the rotation center of the engaging part and the rotation center of the spanner part are made to coincide with each other (Claims 1 and 3), Even if other engine parts are close to each other, such as around the tightening bolt on the upper surface of the cylinder head, the tightening can be performed even in a narrow place where a normal torque wrench cannot provide a rotation range. A spanner portion that requires a small installation space is arranged around the belt, and the spanner portion is formed above the narrow space by a connecting portion formed so as to avoid interference with surrounding inclusions such as engine parts. Since the upper end of the connecting part and the tip rotating part of the torque wrench are connected to the engaging part formed so as to be able to rotate at the same time, the torque wrench is arranged in a rotatable part so that the engine parts, etc. The tightening operation of the tightening bolt can be easily performed without being obstructed by the inclusions.

さらに、トルクレンチ側の係合部の回転中心と締付けボルト側のスパナ部の回転中心とを一致させたことにより、締付けボルトの実際の締付けトルクとトルクレンチに指示された締付けトルク値とが一致することとなり、トルクレンチを握った作業員が目前でトルクレンチの締付けトルク値を見ながら締付けボルトの締付け作業を行なうことが可能となる。   Furthermore, by matching the rotation center of the engaging part on the torque wrench side with the rotation center of the spanner part on the tightening bolt side, the actual tightening torque of the tightening bolt and the tightening torque value indicated by the torque wrench match. Thus, an operator holding the torque wrench can perform the tightening operation of the tightening bolt while looking at the tightening torque value of the torque wrench in front of him.

従って本発明によれば、トルクレンチ側の係合部と締付けボルト側のスパナ部とを曲状に形成した連結部で結合してなる締付けアダプターを、トルクレンチに取付けるのみという、きわめて簡単かつ低コストの構造で以って、排気マニホールドの締付け部周辺のような狭隘な場所にある締付けボルトであっても、締付けボルトの締付けトルクを正確に所要値に保持し、きわめて容易に締付け作業を行なうことができる。   Therefore, according to the present invention, the tightening adapter formed by connecting the engagement portion on the torque wrench side and the spanner portion on the tightening bolt side by the connecting portion formed in a curved shape is very simple and low in that it is simply attached to the torque wrench. Due to the cost structure, even if the tightening bolt is located in a narrow space such as around the tightening part of the exhaust manifold, the tightening torque of the tightening bolt is accurately maintained at the required value, and the tightening work is extremely easy. be able to.

以下、本発明を図に示した実施例を用いて詳細に説明する。但し、この実施例に記載されている構成部品の寸法、材質、形状、その相対配置などは特に特定的な記載がない限り、この発明の範囲をそれのみに限定する趣旨ではなく、単なる説明例にすぎない。   Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this example are not intended to limit the scope of the present invention only to specific examples unless otherwise specified. Only.

図１は本発明の実施例に係る締付けアダプターを備えたボルト締付け工具の側面図、図２は該ボルト締付け工具を排気マニホールの締付けボルトに適用した状態を示す側面図である。
図１〜２において、２はトルクレンチ、１０は該トルクレンチ２に係脱可能な締付けアダプターである。該締付けアダプター１０は、前記トルクレンチ２に係脱可能な上端部を構成するソケット部、締付けボルト４の六角頭部に係脱可能なスパナ部１３、及び前記ソケット部１１とスパナ部１３とを結合する連結部１により構成される。
前記連結部１は略水平方向に延びるアーム部１４と該アーム部１４から下方に曲状に延びる棒状の連結棒１２とにより略コの字状に形成され、該アーム部１４の一端側の上部に前記ソケット部１１が溶接接合され、該アーム部１４の他端側の下部に前記連結棒１２の上端が溶接接合され、該連結棒１２の下端に前記スパナ部１３が溶接接合されて形成されている。尚、前記連結部１を、アーム部１４及び連結棒１２を一体にした棒状体あるいは矩形断面の板状体で構成してもよい。 FIG. 1 is a side view of a bolt tightening tool provided with a tightening adapter according to an embodiment of the present invention, and FIG. 2 is a side view showing a state in which the bolt tightening tool is applied to a tightening bolt of an exhaust manifold.
1 and 2, 2 is a torque wrench, and 10 is a tightening adapter that can be attached to and detached from the torque wrench 2. The tightening adapter 10 includes a socket portion that constitutes an upper end portion that can be engaged with and disengaged from the torque wrench 2, a spanner portion 13 that can be engaged and disengaged with a hexagonal head of the tightening bolt 4, and the socket portion 11 and the spanner portion 13. It is comprised by the connection part 1 to couple | bond.
The connecting portion 1 is formed in a substantially U shape by an arm portion 14 extending in a substantially horizontal direction and a rod-like connecting rod 12 extending downwardly from the arm portion 14, and an upper portion on one end side of the arm portion 14. The socket portion 11 is welded and joined, the upper end of the connecting rod 12 is welded to the lower portion of the other end of the arm portion 14, and the spanner portion 13 is welded and joined to the lower end of the connecting rod 12. ing. In addition, you may comprise the said connection part 1 with the rod-shaped body which integrated the arm part 14 and the connection rod 12, or the plate-shaped body of a rectangular cross section.

そして、前記締付けアダプター１０の連結部１は、図２に示すように、排気マニホールド３及び周囲のエンジン部材８との干渉を回避可能な曲状、好ましくは前記のような略コの字状に形成されるとともに、前記トルクレンチ２の回転中心である該トルクレンチ２と前記ソケット部１１との係合部の回転中心１５と前記締付けボルト４の六角頭部に係合するスパナ部１３の回転中心１５とを一致させて形成される。   As shown in FIG. 2, the connecting portion 1 of the tightening adapter 10 has a curved shape that can avoid interference with the exhaust manifold 3 and the surrounding engine member 8, and preferably has a substantially U shape as described above. The rotation of the spanner 13 that is formed and engages the rotation center 15 of the engagement portion between the torque wrench 2 and the socket portion 11, which is the rotation center of the torque wrench 2, and the hexagonal head of the tightening bolt 4. It is formed so as to coincide with the center 15.

かかる構成からなる締付けアダプターを備えたボルト締付け工具を用いて排気マニホールド３用締付けボルト４の締付け作業を行うにあたっては、図２に示されるように、排気マニホールド３をエンジンのシリンダヘッド７に締付ける排気マニホールドの締付けボルト４（６は円筒状のスペーサ、５は止めナットを示す）を締付けるためのトルクレンチ２に取り付けられる前記締付けアダプター１０を、該締付けアダプター１０のソケット部１１にトルクレンチ２の先端回転部を係合した係合部と前記締付けボルト４に係合されるスパナ部１３とを連結する連結部１を、排気マニホールド３及び該締付けボルト４に近接するエンジン部品８との干渉を回避可能な略コの字状（曲状）に形成したので、かかる締付けボルト４周辺のような排気マニホールド３や他のエンジン部品８が近接していて、通常のトルクレンチでは回動範囲が取れないような狭隘な場所であっても、該締付けボルト４の周辺には設置スペースが小さくて済むスパナ部１３が配置されており、且つ該スパナ部１３を排気マニホールド３や近接するエンジン部品８との干渉を避けるように形成された連結部１を介して上方の広いスペースに配置されているトルクレンチに連結することにより、該トルクレンチ２を排気マニホールド３や他のエンジン部品８に障害されることなく容易に回動して、締付けボルト４の締付け作業を行うことができる。   When performing the tightening operation of the tightening bolt 4 for the exhaust manifold 3 using the bolt tightening tool having the tightening adapter having such a configuration, as shown in FIG. 2, the exhaust for tightening the exhaust manifold 3 to the cylinder head 7 of the engine. The tightening adapter 10 attached to the torque wrench 2 for tightening the manifold tightening bolt 4 (6 is a cylindrical spacer, 5 is a set nut) is connected to the socket 11 of the tightening adapter 10 at the tip of the torque wrench 2. The connecting portion 1 that connects the engaging portion engaged with the rotating portion and the spanner portion 13 engaged with the tightening bolt 4 avoids interference with the exhaust manifold 3 and the engine component 8 adjacent to the tightening bolt 4. Since it is formed in a substantially U-shape (curved shape) that can be used, it is possible to A wrench that requires a small installation space around the tightening bolt 4 even in a narrow place where the hold 3 and other engine parts 8 are close to each other and a rotation range cannot be obtained with a normal torque wrench. Torque wrench in which the portion 13 is disposed and the spanner portion 13 is disposed in a wide space above the connecting portion 1 formed so as to avoid interference with the exhaust manifold 3 and the adjacent engine component 8. The torque wrench 2 can be easily rotated without being obstructed by the exhaust manifold 3 and other engine parts 8, and the tightening operation of the tightening bolt 4 can be performed.

さらに、前記トルクレンチ２側の係合部（ソケット部１１）の回転中心１５と締付けボルト４側のスパナ部１３の回転中心１５とを一致させているので、締付けボルト４の実際の締付けトルクとトルクレンチ２に指示された締付けトルク値とが一致することとなり、トルクレンチ２を握った作業員が目前でトルクレンチ２の締付けトルク値を見ながら締付けボルトの締付け作業を行なうことが可能となる。   Furthermore, since the rotation center 15 of the engaging part (socket part 11) on the torque wrench 2 side and the rotation center 15 of the spanner part 13 on the tightening bolt 4 side are matched, the actual tightening torque of the tightening bolt 4 The tightening torque value instructed to the torque wrench 2 matches, so that the worker holding the torque wrench 2 can perform the tightening operation of the tightening bolt while looking at the tightening torque value of the torque wrench 2 immediately before. .

従ってかかる実施例によれば、トルクレンチ２側の係合部（ソケット部１１）と締付けボルト４側のスパナ部１３とを曲状に形成した連結部１で結合してなる締付けアダプター１０を、トルクレンチ２に取付けるのみという、きわめて簡単かつ低コストの構造で以って、排気マニホールド３の締付け部周辺のような狭隘な場所にある締付けボルト４であっても、該締付けボルト４の締付けトルクを正確に所要値に保持し、きわめて容易に締付け作業を行なうことができる。   Therefore, according to this embodiment, the tightening adapter 10 formed by connecting the engaging portion (socket portion 11) on the torque wrench 2 side and the spanner portion 13 on the tightening bolt 4 side with the connecting portion 1 formed in a curved shape, Even if the tightening bolt 4 is located in a narrow place such as around the tightening portion of the exhaust manifold 3 with a very simple and low-cost structure that is only attached to the torque wrench 2, the tightening torque of the tightening bolt 4 Can be held at the required value accurately and tightening can be performed very easily.

本発明によれば、簡単かつ低コストの構造で以って、排気マニホールドの締付け部周辺のような狭隘な場所でも、締付けボルトの締付けトルクを所要値に保持してきわめて容易に締付け作業を行い得るボルト締付け工具を提供できる。   According to the present invention, with a simple and low-cost structure, even in a narrow place such as around the exhaust manifold tightening portion, the tightening torque of the tightening bolt can be maintained at a required value and the tightening operation can be performed very easily. Can provide the bolt tightening tool to get.

本発明の実施例に係る締付けアダプターを備えたボルト締付け工具の側面図である。It is a side view of a bolt tightening tool provided with a tightening adapter according to an embodiment of the present invention. ボルト締付け工具を排気マニホールの締付けボルトに適用した状態を示す側面図である。It is a side view which shows the state which applied the bolt fastening tool to the fastening bolt of an exhaust manifold.

符号の説明Explanation of symbols

１ 連結部
２ トルクレンチ
３ 排気マニホールド
４ 締付けボルト
７ シリンダヘッド
８ エンジン部品
１０ 締付けアダプター
１１ ソケット部
１２ 連結棒
１３ スパナ部
１４ アーム部
１５ 回転中心 DESCRIPTION OF SYMBOLS 1 Connection part 2 Torque wrench 3 Exhaust manifold 4 Clamping bolt 7 Cylinder head 8 Engine part 10 Tightening adapter 11 Socket part 12 Connection rod 13 Spanner part 14 Arm part 15 Center of rotation

Claims (3)

トルクレンチに取り付けられて該トルクレンチにより加えられる締付け力をボルトに伝達する締付けアダプターを備えたボルト締付け工具であって、前記締付けアダプターは、その上端部と前記トルクレンチの先端回転部とで同時回転可能な係合部を構成するとともに、下端部に前記ボルトに係合されるスパナ部を固定し、前記係合部とスパナ部とを周囲の介在物との干渉を回避可能な曲状に形成した連結部で結合し、さらに前記係合部の回転中心と前記スパナ部の回転中心とを一致させたことを特徴とする締付けアダプターを備えたボルト締付け工具。   A bolt tightening tool provided with a tightening adapter that is attached to a torque wrench and transmits a tightening force applied by the torque wrench to the bolt, wherein the tightening adapter is simultaneously used at the upper end of the torque wrench and the tip rotating portion of the torque wrench. While constituting a rotatable engaging portion, a spanner portion engaged with the bolt is fixed to a lower end portion, and the engaging portion and the spanner portion are bent so as to avoid interference with surrounding inclusions. A bolt tightening tool provided with a tightening adapter, wherein the bolts are coupled by the formed connecting portion, and the rotation center of the engaging portion is aligned with the rotation center of the spanner portion. 前記連結部は、略水平方向に延びるアーム部と該アーム部から下方に曲状に延びる棒状の連結棒とにより略コの字状に形成されたことを特徴とする請求項１記載の締付けアダプターを備えたボルト締付け工具。   2. The tightening adapter according to claim 1, wherein the connecting portion is formed in a substantially U shape by an arm portion extending in a substantially horizontal direction and a rod-like connecting rod extending downwardly from the arm portion. Bolt tightening tool with トルクレンチに取り付けられて該トルクレンチにより加えられる締付け力を、排気マニホールドのフランジ部をシリンダヘッド等のエンジン部材に締付ける排気マニホールド締付けボルトに伝達する締付けアダプターを備えたボルト締付け工具であって、前記締付けアダプターは、その上端部と前記トルクレンチの先端回転部とで同時回転可能な係合部を構成するとともに、下端部に前記締付けボルトに係合されるスパナ部を固定し、前記係合部とスパナ部とを周囲のエンジン部材との干渉を回避可能な曲状に形成した連結部で結合し、さらに前記係合部の回転中心と前記スパナ部の回転中心とを一致させたことを特徴とする締付けアダプターを備えたボルト締付け工具。
A bolt tightening tool provided with a tightening adapter that is attached to a torque wrench and transmits a tightening force applied by the torque wrench to an exhaust manifold tightening bolt that tightens a flange portion of the exhaust manifold to an engine member such as a cylinder head. The tightening adapter forms an engaging portion that can rotate simultaneously with an upper end portion thereof and a tip rotating portion of the torque wrench, and fixes a spanner portion engaged with the tightening bolt to the lower end portion, And a spanner part are connected by a connecting part formed in a curved shape capable of avoiding interference with surrounding engine members, and the rotation center of the engagement part and the rotation center of the spanner part are made to coincide with each other. Bolt tightening tool with a tightening adapter.
JP2006119331A 2006-04-24 2006-04-24 Exhaust manifold bolt tightening tool with tightening adapter Expired - Fee Related JP5101034B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103917335A (en) * 2011-09-29 2014-07-09 斯堪尼亚商用车有限公司 Tool for fitting and removing screw means on a rear side of an object
JP2016093864A (en) * 2014-11-14 2016-05-26 日野自動車株式会社 Operation tool
CN107971954A (en) * 2017-12-27 2018-05-01 江苏省锡山中等专业学校 A kind of spanner that can be used to slide tooth and corrosion bolt
CN113681495A (en) * 2021-09-06 2021-11-23 中国化学工程第三建设有限公司 Tightening device, manufacturing method and tightening method for fixed-torque bolt in narrow space

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109866014A (en) * 2019-04-03 2019-06-11 西安飞机工业（集团）有限责任公司 A kind of installation method of not open area high locked bolts

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JPS59119005A (en) * 1982-12-24 1984-07-10 Hayashi Seikou Kk Adjusting device of tappet gap
US6089128A (en) * 1998-10-05 2000-07-18 Kopyless; Patrick Wrench for inaccessible fastener
FR2872078A1 (en) * 2004-06-24 2005-12-30 Lohr Ind Setting tool for tightening nut or screw head, has flat body terminated by tightening and driving ends, where body is extended by ends at right angle, and each body extends in shape of wing perpendicular to general plane of body

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JPS53117696U (en) * 1977-02-26 1978-09-19
JPS59119005A (en) * 1982-12-24 1984-07-10 Hayashi Seikou Kk Adjusting device of tappet gap
US6089128A (en) * 1998-10-05 2000-07-18 Kopyless; Patrick Wrench for inaccessible fastener
FR2872078A1 (en) * 2004-06-24 2005-12-30 Lohr Ind Setting tool for tightening nut or screw head, has flat body terminated by tightening and driving ends, where body is extended by ends at right angle, and each body extends in shape of wing perpendicular to general plane of body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103917335A (en) * 2011-09-29 2014-07-09 斯堪尼亚商用车有限公司 Tool for fitting and removing screw means on a rear side of an object
JP2016093864A (en) * 2014-11-14 2016-05-26 日野自動車株式会社 Operation tool
CN107971954A (en) * 2017-12-27 2018-05-01 江苏省锡山中等专业学校 A kind of spanner that can be used to slide tooth and corrosion bolt
CN113681495A (en) * 2021-09-06 2021-11-23 中国化学工程第三建设有限公司 Tightening device, manufacturing method and tightening method for fixed-torque bolt in narrow space

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