JP3600265B2 - Bolt or nut tightening / relaxing device - Google Patents

Bolt or nut tightening / relaxing device Download PDF

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Publication number
JP3600265B2
JP3600265B2 JP05573394A JP5573394A JP3600265B2 JP 3600265 B2 JP3600265 B2 JP 3600265B2 JP 05573394 A JP05573394 A JP 05573394A JP 5573394 A JP5573394 A JP 5573394A JP 3600265 B2 JP3600265 B2 JP 3600265B2
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JP
Japan
Prior art keywords
chuck
socket
shaft
peripheral taper
outer peripheral
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 - Fee Related
Application number
JP05573394A
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Japanese (ja)
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JPH07266245A (en
Inventor
栄一 佐野
唯雄 石子
幸一 飛田
久満 羽田野
弘幸 加藤
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Filing date
Publication date
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Priority to JP05573394A priority Critical patent/JP3600265B2/en
Publication of JPH07266245A publication Critical patent/JPH07266245A/en
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Publication of JP3600265B2 publication Critical patent/JP3600265B2/en
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Description

【0001】
【産業上の利用分野】
本発明は、ボルトやナットを安定した締付けトルクで締付けることが出来るボルトとナットの締付・弛緩装置に関する。
【0002】
【従来の技術】
従来、ボルトやナットの締結作業とか弛緩作業を頻繁に繰り返すような際、例えば図5に示すような締付・弛緩装置51を使用している。
【0003】
この締付・弛緩装置51は、工具本体52に対してソケットの断面角形の軸部53が着脱自在にされており、この軸部53をチャック部54のほぼ同じ断面形状の差込孔54aに差込んで、ボール55を軸部53の係合溝53aに係合させて抜け出し防止を図っている。
【0004】
そして、このボール55はチャック部54のボール孔54bから出没自在となり、チャック部54の外周に沿って摺動自在なホルダ56によって出没が規制される。
【0005】
すなわち、このホルダ56は、工具本体52との間に弾装されたスプリング57によって図中右方に付勢されており、また、基端側内周部には、ボール55を没入させることの出来る凹部56aを設けている。
【0006】
また、このホルダ56の先端側外周部には操作リング58が螺合して一体化されており、ソケットを装着する際は、この操作リング58を引張り出してホルダ56の凹部56aをボール55の位置に臨ませ、軸部53を挿入した後、操作リング58を離してスプリング57力でホルダ56を復帰させ、ボール55の没入を規制する。
そして、不図示のスピンドルの回転をチャック部54に伝達し、このチャック部54を回転させることでソケットに回転を伝達する。
【0007】
【発明が解決しようとする課題】
しかしながら、このような装置ではソケット軸部53とチャック部54との嵌合隙間が比較的大きく、しかもボール55と係合溝53aとの係合隙間も大きいため、回転方向、軸線方向ともにガタがあり、締付けトルクに誤差が生じやすいという問題があった。
このため、時にはその後の振動等に起因してボルトやナットが弛むような不具合が生ずることがあった。
従って、簡易な構成でソケットと工具本体を確固として連結し、締付けトルクの安定化を図ることの出来るような装置が望まれていた。
【0008】
【課題を解決するための手段】
かかる課題を解決するため、本発明は、工具本体のチャック部にソケットの軸部を差込んで外周を締付け把持し、スピンドルの正・逆回転を前記チャック部を介してソケットに伝達するようにしたボルト又はナットの締付・弛緩装置において、ソケットの軸部の軸径を変化させて外面に外周テーパ部を設けるとともに、軸部の差込基端部にスリット溝付の嵌入孔を設けて工具本体の嵌入突起に嵌合可能とした。
そして、チャック部が外周テーパ部に対する把持力を強めた際、ソケットが差込み方向に押圧されて嵌入孔が嵌入突起に深く入り込み、これによって軸部基端部が半径方向に拡がってチャック部との差込み間隙が無くなるようにした。
【0009】
また、チャック部の締付け把持力の調整を、チャック部の外周に螺合するホルダの締付け部によってチャック部端部を締め付けることによって行うようにし、このホルダの締付け部を、外周テーパ部の傾斜方向とは逆方向に傾斜する内周テーパ部として構成した。
【0010】
【作用】
チャック部で外周テーパ部を締付けることでソケットを奥深くまで差込み、これによって差込基端部の嵌入孔を工具本体の嵌入突起に深く入り込ませ、スリット溝を開かせて軸部基端部を半径方向に拡開させる。
従って、ソケットは軸方向に確固として保持されるばかりでなく、軸部とチャック部の間の隙間もなくなって回転方向にも確固として保持され、安定した締付けトルクで締結することが出来る。
【0011】
そして、チャック部で軸部の外周テーパ部を締付け把持する際の締付け把持力の調整は、チャック部の外周に螺合するホルダの内周テーパ部でチャック部端部を締付けることで行うが、軸部の外周テーパ部とホルダの内周テーパ部の傾斜方向が逆方向であるため、ホルダの内周テーパ部とチャック部端部間の緊締力を高めることが出来る。
【0012】
つまり、ホルダはチャック部からの反力によって確固として保持され、例えば締付・弛緩作業のようにチャック部の正・逆回転を繰り返しても、ホルダの螺合が弛むようなことはない。
また、ホルダを螺合構造にすることで簡易に構成出来る。
【0013】
【実施例】
本発明のボルト又はナットの締付・弛緩装置の実施例について添付した図面に基づき説明する。
図1は本装置の全体概要図、図2はソケットの結合状態を示す一部断面図、図3はソケットを抜いた状態を示す一部断面図、図4はソケットの差込基端部の正面図である。
【0014】
図1に示すように、本発明のボルト又はナットの締付・弛緩装置1は、工具本体2に対して着脱自在なソケット3を備え、工具本体2側に設けた不図示のスピンドルの回転をソケット3に伝達するにあたり、ソケット3に先端ブレを生じさせることがなく、また、正・逆回転を繰り返してもソケット3が確固として保持されるよう構成している。
【0015】
このため、図2及至図4に示すように、工具本体2にはスピンドルに連なるチャック部4が設けられ、このチャック部4はフロントカバー5から前面に突出するとともに、回転軸受部6によって回転自在に支えられている。
【0016】
そしてこのチャック部4は、ソケット3の軸部7を挿入させることが出来るように筒状に構成され、突出側先端部には、図3に示すように、直径方向に複数のスリット溝8aを備えた把持部8が設けられている。
【0017】
また、チャック部4の奥側の筒内の断面形状は六角形状部9とされ、更にその奥には嵌入突起10が突設されている。そしてこの嵌入突起10は先端側が先細りになるテーパ形状とされている。
【0018】
そして、このチャック部4の外周にはねじ溝が刻設され、このねじ溝にホルダ11が螺合している。
【0019】
ホルダ11の先端部内周には、先端開口側の面積が狭まるような内周テーパ部12が形成されている。
【0020】
そして、ホルダ11を螺合させてゆくと、この内周テーパ部12がチャック部4の先端外周部に当接して、チャック部4を締め付けることが出来るようにしている。
【0021】
一方、ソケット3の先端部には、図2に示すように、ナット又はボルト頭部に嵌合する角穴部14が設けられ、また、後端側に延出する軸部7には、軸径を変化させた外周テーパ部15と、複数のスリット溝16aを備えた六角柱部16が形成されている。
【0022】
そして、外周テーパ部15の軸径は後端側に向かう程軸径が太くなるように変化しており、このため、外面は軸方向に沿って後端側に向けて拡がるような傾斜面とされている。
【0023】
また、軸部7の差込基端部17には、図4に示すような嵌入孔18を設け、この嵌入孔18は、前記工具本体2側の嵌入突起10を嵌入せしめることが出来るようにしている。
【0024】
そして、この軸部7を前記チャック部4に差込んだ際、軸部7の六角柱部16がチャック部4の六角形状部9に嵌合し、軸部7の外周テーパ部15がチャック部4の把持部8に嵌合し、差込基端部17の嵌入孔18が嵌入突起10に嵌合するようにしている。
【0025】
かかる構成による締付・弛緩装置21において、工具本体2のチャック部4にソケット3の軸部7を差込み、次いでホルダ11を回転させて内周テーパ部12でチャック部4の把持部8先端を締め付ける。
【0026】
すると、チャック部4の把持部8はスリット溝8aの間隔を狭めながら縮径し、軸部7の外周テーパ部15を締付け把持する。
【0027】
このため、ソケット3は外周テーパ部15の傾斜角の作用で差込み方向に向けて押圧され、締付け把持力が高まるに連れて嵌入突起10が嵌入孔18の奥深くまで入り込む。
そして、嵌入突起10は基端側ほど大径であることから、嵌入突起10が深く入り込むに連れてスリット溝16aの間隔が開いて軸部7基端部が半径方向に拡開する。
【0028】
つまり、チャック部4の六角形状部9内周と、軸部7の六角柱部16外周との間のクリアランスがなくなって両者が密着し合う。
また、ソケット3はチャック部4の把持部8から受ける後方圧と嵌入突起10から受ける前方圧によって軸方向に対しても確固として保持される。
【0029】
そして、かかる状態でスピンドルの回転力をチャック部4を介してソケット3に伝達するが、ソケット3の軸部7とチャック部4は緊密に結合しているため、回転方向にも軸方向にもガタつきはなく、安定した締付けトルクで締め付けることが出来る。
【0030】
またこのように、ホルダ11の内周テーパ部12がチャック部4の先端外周部を締付け、このチャック部4が軸部7の外周テーパ部15を締め付けている状態は、逆にチャック部4が外周テーパ部15から反力を受け、また、内周テーパ部12もチャック部4から反力を受けている状態でもある。
【0031】
そして、このような力状態では、内周テーパ部12と外周テーパ部15の傾斜方向を逆にすることによって、内周テーパ部15とチャック部4先端外周部との緊密度を高めることが出来る。
【0032】
すなわち、ホルダ11とチャック部4とが常に密着するような力が作用し、仮令ホルダ11が弛むような方向にチャック部4を回転させたとしても、ホルダ11の螺合は弛みにくくなる。
【0033】
このため、従来であれば、締付・弛緩装置のように正・逆回転を伴うような装置では、回転締付け方式は採用されないのであるが、本案の場合は螺合方式のホルダ11を採用することが可能となり、かかる螺合方式を採用することで構成の簡素化が図れた。
【0034】
【発明の効果】
以上のように、本発明のボルト又はナットの締付・弛緩装置は、チャック部で軸部の外周テーパ部を締付けることでソケットを差込み方向の奥深くまで押込み、これによって差込基端部の嵌入孔を工具本体の嵌入突起に深く入り込ませ、スリット溝を開かせて軸部基端部を半径方向に拡開させるようにしたため、ソケットを軸方向に確固として保持出来るだけでなく、軸部外周とチャック部内周の間のクリアランスもなくなって回転方向にも確固として保持することが出来る。
つまり、安定した締付けトルクで締結することが出来る。
また、チャック部を締め付けるホルダの内周テーパ部と、チャック部によって締付け把持される軸部の外周テーパ部の傾斜方向を逆方向にすることで、ホルダの内周テーパ部とチャック部外周端部の緊締力を高めることが出来、ホルダの弛み防止が図られる。
そして、ホルダを螺合方式にすることで、簡素な構成が可能となる。
【図面の簡単な説明】
【図1】図1は本装置の全体概要図
【図2】ソケットの結合状態を示す一部断面図
【図3】ソケットを抜いた状態を示す一部断面図
【図4】ソケットの差込基端部の正面図
【図5】従来図
【符号の説明】
1 締付・弛緩装置
2 工具本体
3 ソケット
4 チャック部
7 軸部
10 嵌入突起
11 ホルダ
12 内周テーパ部
15 外周テーパ部
16a スリット溝
17 差込基端部
18 嵌入孔
[0001]
[Industrial applications]
The present invention relates to a bolt and nut tightening / relaxing device that can tighten bolts and nuts with a stable tightening torque.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, when fastening and loosening operations of bolts and nuts are frequently repeated, a tightening / relaxing device 51 as shown in FIG. 5 is used, for example.
[0003]
In this tightening / relaxing device 51, a shaft 53 having a square cross section of a socket is made detachable with respect to a tool main body 52, and this shaft 53 is inserted into an insertion hole 54a having substantially the same cross section as the chuck 54. When inserted, the ball 55 is engaged with the engagement groove 53a of the shaft portion 53 to prevent the ball 55 from slipping out.
[0004]
Then, the ball 55 is allowed to protrude and retract from the ball hole 54 b of the chuck portion 54, and is restricted by a holder 56 slidable along the outer periphery of the chuck portion 54.
[0005]
That is, the holder 56 is urged rightward in the figure by a spring 57 elastically mounted between the holder 56 and the tool body 52. A possible recess 56a is provided.
[0006]
An operation ring 58 is screwed and integrated with the outer peripheral portion on the distal end side of the holder 56. When the socket is mounted, the operation ring 58 is pulled out and the recess 56 a of the holder 56 is Then, after inserting the shaft portion 53, the operating ring 58 is released, the holder 56 is returned by the force of the spring 57, and the immersion of the ball 55 is regulated.
Then, the rotation of a spindle (not shown) is transmitted to the chuck portion 54, and the rotation is transmitted to the socket by rotating the chuck portion 54.
[0007]
[Problems to be solved by the invention]
However, in such a device, the gap between the socket shaft portion 53 and the chuck portion 54 is relatively large, and the gap between the ball 55 and the engagement groove 53a is also large. There is a problem that an error is likely to occur in the tightening torque.
For this reason, a problem that the bolts and nuts are sometimes loosened sometimes occurs due to the subsequent vibration or the like.
Therefore, there has been a demand for a device that can securely connect the socket and the tool body with a simple configuration and stabilize the tightening torque.
[0008]
[Means for Solving the Problems]
In order to solve such a problem, the present invention is to insert a shaft portion of a socket into a chuck portion of a tool body, tighten and grasp an outer periphery, and transmit a forward / reverse rotation of a spindle to the socket via the chuck portion. In the tightening / relaxing device for bolts or nuts, the outer diameter of the socket is changed by changing the shaft diameter of the socket to provide an outer peripheral taper portion, and an insertion hole with a slit groove is provided at the insertion base end of the shaft. The fitting protrusion of the tool body can be fitted.
Then, when the chucking portion strengthens the gripping force on the outer peripheral taper portion, the socket is pressed in the insertion direction and the insertion hole is deeply inserted into the insertion projection, whereby the base end portion of the shaft portion expands in the radial direction and the chuck portion is in contact with the chucking portion. The insertion gap was eliminated.
[0009]
In addition, the adjustment of the clamping gripping force of the chuck portion is performed by tightening the end portion of the chuck portion by the fastening portion of the holder screwed to the outer periphery of the chuck portion, and the tightening portion of the holder is inclined in the inclination direction of the outer peripheral taper portion. It is configured as an inner peripheral tapered portion inclined in the opposite direction.
[0010]
[Action]
The socket is inserted deeply by tightening the outer peripheral taper part with the chuck part, whereby the insertion hole of the base part of the insertion is inserted deeply into the insertion protrusion of the tool body, the slit groove is opened, and the base part of the shaft part is radiused. Spread in the direction.
Therefore, the socket is not only firmly held in the axial direction, but also firmly held in the rotating direction with no gap between the shaft and the chuck, and can be fastened with a stable tightening torque.
[0011]
Adjustment of the tightening grip force when tightening and gripping the outer peripheral taper portion of the shaft portion with the chuck portion is performed by tightening the chuck portion end portion with the inner peripheral taper portion of the holder screwed to the outer periphery of the chuck portion. Since the inclination direction of the outer peripheral taper portion of the shaft portion and the inclination direction of the inner peripheral taper portion of the holder are opposite, the tightening force between the inner peripheral taper portion of the holder and the end of the chuck portion can be increased.
[0012]
That is, the holder is firmly held by the reaction force from the chuck portion, and the screwing of the holder does not become loose even if the chuck portion is repeatedly rotated forward and backward, for example, in a tightening and loosening operation.
In addition, the holder can be easily configured by using a screwed structure.
[0013]
【Example】
An embodiment of a bolt or nut tightening / relaxing device according to the present invention will be described with reference to the accompanying drawings.
1 is an overall schematic view of the apparatus, FIG. 2 is a partial cross-sectional view showing a connected state of the socket, FIG. 3 is a partial cross-sectional view showing a state where the socket is removed, and FIG. It is a front view.
[0014]
As shown in FIG. 1, a bolt or nut tightening / relaxing device 1 of the present invention includes a socket 3 detachable from a tool main body 2, and rotates a spindle (not shown) provided on the tool main body 2 side. When transmitting to the socket 3, the socket 3 is configured so that the tip of the socket 3 does not shake, and the socket 3 is firmly held even when the forward and reverse rotations are repeated.
[0015]
For this purpose, as shown in FIGS. 2 to 4, the tool body 2 is provided with a chuck portion 4 connected to the spindle, and the chuck portion 4 protrudes from the front cover 5 to the front and is rotatable by the rotary bearing portion 6. It is supported by.
[0016]
The chuck portion 4 is formed in a cylindrical shape so that the shaft portion 7 of the socket 3 can be inserted therein. As shown in FIG. A provided grip portion 8 is provided.
[0017]
The cross-sectional shape of the inside of the cylinder on the back side of the chuck portion 4 is a hexagonal portion 9, and a fitting projection 10 is further protruded at the back. The fitting projection 10 has a tapered shape in which the tip side is tapered.
[0018]
A screw groove is formed on the outer periphery of the chuck portion 4, and the holder 11 is screwed into the screw groove.
[0019]
An inner peripheral taper portion 12 is formed on the inner periphery of the distal end portion of the holder 11 so that the area of the distal end opening side is reduced.
[0020]
Then, when the holder 11 is screwed, the inner peripheral taper portion 12 comes into contact with the outer peripheral portion of the distal end of the chuck portion 4 so that the chuck portion 4 can be tightened.
[0021]
On the other hand, as shown in FIG. 2, a square hole 14 that fits into the nut or bolt head is provided at the front end of the socket 3, and the shaft 7 that extends to the rear end side has a shaft. An outer peripheral taper portion 15 having a changed diameter and a hexagonal column portion 16 having a plurality of slit grooves 16a are formed.
[0022]
The shaft diameter of the outer peripheral taper portion 15 changes so that the shaft diameter becomes larger toward the rear end side. Therefore, the outer surface has an inclined surface that expands toward the rear end side along the axial direction. Have been.
[0023]
Further, an insertion hole 18 as shown in FIG. 4 is provided in the insertion base end portion 17 of the shaft portion 7 so that the insertion projection 18 on the tool body 2 side can be inserted. ing.
[0024]
When the shaft portion 7 is inserted into the chuck portion 4, the hexagonal column portion 16 of the shaft portion 7 fits into the hexagonal portion 9 of the chuck portion 4, and the outer peripheral taper portion 15 of the shaft portion 7 4 and the fitting hole 18 of the insertion base end portion 17 is fitted to the fitting projection 10.
[0025]
In the tightening / relaxing device 21 having such a configuration, the shaft portion 7 of the socket 3 is inserted into the chuck portion 4 of the tool body 2, and then the holder 11 is rotated so that the tip of the grip portion 8 of the chuck portion 4 is tapered by the inner peripheral taper portion 12. tighten.
[0026]
Then, the grip portion 8 of the chuck portion 4 is reduced in diameter while narrowing the interval between the slit grooves 8a, and tightens and grips the outer peripheral taper portion 15 of the shaft portion 7.
[0027]
For this reason, the socket 3 is pressed in the insertion direction by the action of the inclination angle of the outer peripheral taper portion 15, and the fitting projection 10 enters deeper into the fitting hole 18 as the clamping gripping force increases.
Since the fitting protrusion 10 has a larger diameter toward the base end, as the fitting protrusion 10 enters deeper, the interval between the slit grooves 16a increases, and the base end of the shaft portion 7 expands in the radial direction.
[0028]
That is, there is no clearance between the inner periphery of the hexagonal portion 9 of the chuck portion 4 and the outer periphery of the hexagonal column portion 16 of the shaft portion 7, and the two adhere to each other.
Further, the socket 3 is firmly held in the axial direction by the rear pressure received from the grip portion 8 of the chuck portion 4 and the front pressure received from the fitting projection 10.
[0029]
Then, in this state, the rotational force of the spindle is transmitted to the socket 3 via the chuck 4, but since the shaft 7 of the socket 3 and the chuck 4 are tightly connected, the rotational force and the axial There is no backlash and it can be tightened with a stable tightening torque.
[0030]
As described above, the inner peripheral taper portion 12 of the holder 11 tightens the outer peripheral portion of the distal end of the chuck portion 4, and the chuck portion 4 tightens the outer peripheral taper portion 15 of the shaft portion 7. In this state, the reaction force is received from the outer taper portion 15 and the inner taper portion 12 is also receiving the reaction force from the chuck portion 4.
[0031]
In such a force state, the tightness between the inner peripheral taper portion 15 and the outer peripheral portion at the tip of the chuck portion 4 can be increased by reversing the inclination direction of the inner peripheral taper portion 12 and the outer peripheral taper portion 15. .
[0032]
That is, even if a force is applied so that the holder 11 and the chuck portion 4 are always in close contact with each other, and the chuck portion 4 is rotated in a direction in which the temporary holder 11 is loosened, the screwing of the holder 11 is unlikely to be loosened.
[0033]
For this reason, in the related art, in a device that involves forward and reverse rotation such as a tightening / relaxing device, the rotary tightening method is not adopted, but in the case of the present invention, a screw-in type holder 11 is used. The configuration can be simplified by employing such a screwing method.
[0034]
【The invention's effect】
As described above, in the bolt or nut tightening / relaxing device of the present invention, the socket is pushed deep into the insertion direction by tightening the outer peripheral taper portion of the shaft portion with the chuck portion, thereby fitting the insertion base end portion. The hole is inserted deeply into the fitting projection of the tool body, and the slit groove is opened to expand the base end of the shaft in the radial direction, so that not only can the socket be firmly held in the axial direction, but also the outer periphery of the shaft There is no clearance between the chuck and the inner periphery of the chuck portion, and it can be firmly held in the rotation direction.
That is, fastening can be performed with a stable tightening torque.
Also, by inverting the inclination direction of the inner peripheral taper portion of the holder for clamping the chuck portion and the outer peripheral taper portion of the shaft portion clamped and held by the chuck portion, the inner peripheral taper portion of the holder and the outer peripheral end portion of the chuck portion are reversed. Can be increased, and the holder can be prevented from loosening.
Then, a simple configuration can be achieved by using a screwing method for the holder.
[Brief description of the drawings]
FIG. 1 is an overall schematic view of the present apparatus. FIG. 2 is a partial cross-sectional view showing a connected state of a socket. FIG. 3 is a partial cross-sectional view showing a state in which a socket is removed. FIG. Front view of base end [Figure 5] Conventional view [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 Tightening / relaxing device 2 Tool main body 3 Socket 4 Chuck part 7 Shaft part 10 Insertion protrusion 11 Holder 12 Inner peripheral taper part 15 Outer peripheral taper part 16a Slit groove 17 Insert base end part 18 Insertion hole

Claims (1)

工具本体(2)のチャック部(4)にソケット(3)の軸部(7)を差し込んで外周を締付け把持し、スピンドルの正・逆回転を前記チャック部(4)を介してソケット(3)に伝達するようにしたボルト又はナットの締付・弛緩装置において、
前記ソケット(3)の軸部(7)に外面の軸径を変化させた外周テーパ部(15)と、それに続く六角柱部(16)を設け、前記六角柱部(16)の差込基端部(17)にスリット溝(16a)付きの嵌入孔(18)を設け、前記外周テーパ部(15)がホルダ(11)の内周テーパ部(12)に、前記六角柱部(16)が前記チャック部(4)の六角形状部(9)に、前記嵌入孔(18)が前記工具本体(2)の嵌入突起(10)にそれぞれ嵌合可能とし、前記チャック部(4)が前記外周テーパ部(15)に対する把持力を強めた際、ソケット(3)が差込み方向に押圧されて前記嵌入孔(18)が前記嵌入突起(10)に深く入り込み、これによって軸部(7)の差込基端部(17)が半径方向に拡がってチャック部(4)との差込間隔を無くすようにしたことを特徴とするボルト又はナットの締付・弛緩装置。
An outer clamping grips insert shank of the socket (3) to the chuck portion of the tool body (2) (4) (7), the socket (3 positive and reverse rotation of the spindle through the chuck (4) In the tightening / relaxing device for bolts or nuts to be transmitted to
The socket (3) has a shaft portion (7) provided with an outer tapered portion (15) having a changed outer surface shaft diameter and a hexagonal column portion (16) following the outer peripheral taper portion, and a plug base of the hexagonal column portion (16) is provided. An insertion hole (18) with a slit groove (16a) is provided at an end (17), and the outer peripheral taper (15) is attached to the inner peripheral taper (12) of the holder (11) by the hexagonal column (16). Can be fitted into a hexagonal portion (9) of the chuck portion (4), the fitting hole (18) can be fitted into a fitting projection (10) of the tool body (2), respectively, and the chuck portion (4) can be fitted with the chuck portion (4). When the gripping force on the outer peripheral taper portion (15) is increased, the socket (3) is pressed in the insertion direction, and the insertion hole (18) enters the insertion protrusion (10) deeply, thereby forming the shaft (7). insertion base end portion (17) is spread radially between insertion of the chuck portion (4) Clamping and loosening device of the bolt or nut, characterized in that as eliminated.
JP05573394A 1994-03-25 1994-03-25 Bolt or nut tightening / relaxing device Expired - Fee Related JP3600265B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05573394A JP3600265B2 (en) 1994-03-25 1994-03-25 Bolt or nut tightening / relaxing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05573394A JP3600265B2 (en) 1994-03-25 1994-03-25 Bolt or nut tightening / relaxing device

Publications (2)

Publication Number Publication Date
JPH07266245A JPH07266245A (en) 1995-10-17
JP3600265B2 true JP3600265B2 (en) 2004-12-15

Family

ID=13007066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05573394A Expired - Fee Related JP3600265B2 (en) 1994-03-25 1994-03-25 Bolt or nut tightening / relaxing device

Country Status (1)

Country Link
JP (1) JP3600265B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009255227A (en) * 2008-04-17 2009-11-05 Ingu:Kk Torque socket
JP6395075B2 (en) * 2014-03-31 2018-09-26 パナソニックIpマネジメント株式会社 Attachment for impact tool and impact tool

Also Published As

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JPH07266245A (en) 1995-10-17

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