JPH1015845A - Bolt-nut tightening device - Google Patents
Bolt-nut tightening deviceInfo
- Publication number
- JPH1015845A JPH1015845A JP17479896A JP17479896A JPH1015845A JP H1015845 A JPH1015845 A JP H1015845A JP 17479896 A JP17479896 A JP 17479896A JP 17479896 A JP17479896 A JP 17479896A JP H1015845 A JPH1015845 A JP H1015845A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- nut
- tip
- trigger switch
- housing
- 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.)
- Granted
Links
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ボルト・ナットの締結
に使用する締付機に関し、特に、一方向からボルトの立
込みとナットの締付けができる所謂ワンサイドボルト
の、一定量の立込み長さを保障できるボルト・ナット締
付機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening machine used for fastening bolts and nuts, and more particularly, to a so-called one-side bolt capable of setting up a bolt and tightening a nut from one direction. The present invention relates to a bolt and nut tightening machine that can guarantee the length.
【０００２】[0002]
【従来の技術】図６に示すワンサイドボルト(８)は、軸
部(81)の両端に右ネジ(82)(83)を突設し、立込み側とは
反対側の右ネジ(83)の先端にボルトチップ(84)を突設し
ている。軸部(81)には座金(86)の回止めを画るセレーシ
ョン(87)が形成されている。上記ワンサイドボルト(８)
は、柱(９)への該ボルト(８)の立込みとナット締めによ
る梁(92)の固定を、一方向から行なうためのものであ
る。作業手順は、柱(９)のネジ穴(91)と梁(92)の貫通孔
(93)を一致させ、ネジ穴(91)にワンサイドボルト(８)を
立て込む。ボルト(８)の立込みは、レンチをボルトチッ
プ(84)に係合して行なう。梁(92)から突出したワンサイ
ドボルト(８)の軸部(81)と右ネジ(83)に座金(86)及び予
めナット(85)を装着し、ナットを仮締めする。2. Description of the Related Art A one-side bolt (8) shown in FIG. 6 has right-handed screws (82) and (83) projecting from both ends of a shaft portion (81), and a right-handed screw (83) on the opposite side to the upright side. ) Has a bolt tip (84) protruding from the tip. A serration (87) is formed on the shaft (81) to stop the washer (86) from rotating. Above one side bolt (8)
Is provided for fixing the beam (92) to the pillar (9) from one direction by standing the bolt (8) and tightening the nut (92). The work procedure is the screw hole (91) of the pillar (9) and the through hole of the beam (92).
(93) is aligned, and the one-side bolt (8) is set up in the screw hole (91). The upright of the bolt (8) is performed by engaging a wrench with the bolt tip (84). The washer (86) and the nut (85) are attached to the shaft (81) and the right screw (83) of the one-side bolt (8) projecting from the beam (92), and the nut is temporarily tightened.
【０００３】次に、互いに逆方向に回転するアウターソ
ケットとインナーソケットを同心に具えたボルト・ナッ
ト締付機の、該インナーソケットにボルトチップ(84)
を、アウターソケットにナット(85)を夫々係合して、ボ
ルト・ナットを締め付ける。ワンサイドボルト(８)に
は、該ボルトを緩める方向に回転力が働くが、ボルトと
一体に回転する座金(86)と梁(92)との摩擦によって、ボ
ルトの緩みは阻止される。トルク検出器付きのボルト・
ナット締付機を用い、所定のトルクまでボルト・ナット
を締付けてボルトチップを残すこともでき、或いはボル
トチップを剪断するまでボルト・ナットを締め付けるこ
とが出来る。[0003] Next, a bolt / nut tightening machine having a concentric outer and inner sockets rotating in opposite directions to each other has a bolt chip (84) attached to the inner socket.
And the nuts (85) are respectively engaged with the outer sockets, and the bolts and nuts are tightened. Rotational force acts on the one-side bolt (8) in a direction to loosen the bolt, but the bolt is prevented from loosening by friction between the washer (86) and the beam (92) that rotate integrally with the bolt. Bolt with torque detector
Using a nut tightener, the bolt and nut can be tightened to a predetermined torque to leave the bolt tip, or the bolt and nut can be tightened until the bolt tip is sheared.
【０００４】[0004]
【本発明が解決しようとする課題】上記ワンサイドボル
ト(８)及びネジ穴(91)は、該ボルトの右ネジ(82)先端が
ネジ穴(91)の穴底に達し、座金(86)を介してナット(85)
を締付けたとき、ボルトチップ(84)と右ネジ(83)の数山
が露出する様に、寸法が決められている。ワンサイドボ
ルト(８)がネジ穴(91)の穴底に届かず、柱(９)への立込
み長さが短いままナット(85)を締め付けた場合、立込み
強度が不足し、又、ナット(85)からのワンサイドボルト
(８)の突出量が大き過ぎて安全面からも問題がある。
又、従来は、梁(92)からのワンサイドボルト(８)の突出
長さをメジャーで測定して、ワンサイドボルト(８)の立
込み長さの適正の可否を判断しており、手間がかかって
能率が悪かった。In the one-side bolt (8) and the screw hole (91), the tip of the right screw (82) of the bolt reaches the bottom of the screw hole (91) and the washer (86). Through the nut (85)
The dimensions are determined so that when the is tightened, several peaks of the bolt tip (84) and the right screw (83) are exposed. If the one-side bolt (8) does not reach the bottom of the screw hole (91) and the nut (85) is tightened while the vertical length of the column (9) is short, the vertical strength is insufficient, and One side bolt from nut (85)
(8) The projecting amount is too large, and there is a problem in terms of safety.
Conventionally, the length of the one-side bolt (8) protruding from the beam (92) is measured with a measure to determine whether the upright length of the one-side bolt (8) is appropriate. Was inefficient.
【０００５】本発明は、上記問題を解決するために、ワ
ンサイドボルト(８)のボルトチップ(84)側基端から、ボ
ルト立込み長さ基準面までの距離が適正値よりも大きけ
れば締付け動作を行なわず、又、締付け途上でも該距離
が適正値よりも大きくなれば、締付け動作を停止するボ
ルト・ナット締付機を明らかにするものである。In order to solve the above problem, the present invention is to tighten the bolt if the distance from the base end of the one-side bolt (8) on the side of the bolt tip (84) to the reference surface of the bolt insertion length is larger than an appropriate value. The present invention discloses a bolt / nut tightening machine that stops the tightening operation when the operation is not performed and the distance becomes larger than an appropriate value even during the tightening.
【０００６】[0006]
【課題を解決する手段】本発明のボルト・ナット締付機
は、遊星歯車減速機構(２)を内蔵しハンドル(11)を突設
したハウジング(１)と、ハウジング(１)に取り付けられ
遊星歯車減速機構(２)に入力する電動モータ(12)等の回
転源と、遊星歯車減速機構(２)の２つの出力軸の内、一
方の出力軸に連繋されボルト先端のチップ(84)に係合し
軸方向に進退可能なインナーソケット(４)と、遊星歯車
減速機構(２)の他方の出力軸に連繋されナット(85)に係
合するアウターソケット(３)と、ハンドル(11)に設けた
トリガースイッチ(13)によって回転源の起動停止を行な
う駆動回路(100)を具えたボルト・ナット締付機におい
て、ハウジング(１)上には、バネ付勢されてアウターソ
ケットの先端よりも前方に突出する検出部材(６)がアウ
ターソケット(３)の軸方向と平行にスライド可能に取付
けられ、検出部材(６)は、アウターソケット(３)へのナ
ット(85)の嵌合には支障はないが、ナット座金(86)の頂
面等のボルト立込み長さ基準面に当接する当り片(61)を
有し、ハウジング(１)には、上記検出部材(６)の後退移
行路上に該検出部材(６)の所定量の後退を検出する検出
スイッチ(７)が配備され、該検出スイッチ(７)は前記駆
動回路(100)のトリガースイッチ(13)と直列に接続さ
れ、検出部材(６)が所定量後退した状態でなければ、ト
リガースイッチ(13)のＯＮに拘わらず駆動回路(100)が
開いたままであることを特徴とする。A bolt and nut tightening machine according to the present invention includes a housing (1) having a planetary gear reduction mechanism (2) built therein and having a handle (11) protruding therefrom, and a planetary gear attached to the housing (1). A rotation source such as an electric motor (12) input to the gear reduction mechanism (2) and one of two output shafts of the planetary gear reduction mechanism (2) are connected to one of the output shafts and are connected to the tip (84) of a bolt tip. An inner socket (4) that can engage and move forward and backward in the axial direction, an outer socket (3) that is connected to the other output shaft of the planetary gear reduction mechanism (2) and engages with the nut (85), and a handle (11) In a bolt / nut tightening machine provided with a drive circuit (100) for starting and stopping the rotation source by a trigger switch (13) provided on the housing (1), a spring is urged onto the housing (1) from the tip of the outer socket. The detection member (6) projecting forward also slides parallel to the axial direction of the outer socket (3). The detection member (6) does not hinder the fitting of the nut (85) to the outer socket (3), but it is based on the bolt insertion length of the top surface of the nut washer (86). A detection switch (7) having a contact piece (61) contacting the surface and detecting a predetermined amount of retreat of the detection member (6) on the retreat transition path of the detection member (6) on the housing (1). The detection switch (7) is connected in series with the trigger switch (13) of the drive circuit (100), and unless the detection member (6) is retracted by a predetermined amount, the trigger switch (13) is turned off. It is characterized in that the drive circuit (100) remains open irrespective of the ON state.
【０００７】[0007]
【作用及び効果】締付機をボルト・ナットに係合する前
の初期状態では、図３に示す如く、バネ(63)付勢された
検出部材(６)先端の当り片(61)はアウターソケット(３)
の先端よりも距離Ｌ1だけ前方に位置し、検出部材(６)
の後端と検出スイッチ(７)との間は該距離Ｌ1よりも小
さい距離Ｌ2だけ離れている。インナーソケット(４)は
バネ付勢されて前進し、アウターソケット(３)内に侵入
している。In the initial state before the tightening machine is engaged with the bolt and nut, as shown in FIG. 3, the spring (63) is biased by the detecting member (6) and the contact piece (61) of the tip is the outer member. Socket (3)
Located forward by a distance L 1 from the tip of the detection member (6)
Between the rear end and the detection switch (7) are separated by a small distance L 2 than the distance L 1. The inner socket (4) moves forward by being biased by a spring, and penetrates into the outer socket (3).
【０００８】図４は、柱(９)への立込み長さが適正なワ
ンサイドボルト(８)及び該ボルトに螺合したナット(85)
に締付機をセットした状態を示しており、ボルトチップ
(84)が嵌まったインナーソケット(４)は該チップ(84)に
押されて後退し、又、検出部材(６)は先端の当り片(61)
が、ボルト立込み長さ基準面である座金(86)の頂面に押
されてアウターソケット(３)の先端に当るまで後退す
る。検出部材(６)の後退により、検出スイッチ(７)が働
き、駆動回路(100)はトリガースイッチ(13)をＯＮにす
れば閉じる様になる。トリガースイッチ(13)をＯＮにし
て締付機を作動させボルト・ナットの締付けを行なう。FIG. 4 shows a one-side bolt (8) having a proper standing length in the column (9) and a nut (85) screwed to the bolt.
Shows the state in which the tightening machine is set to
The inner socket (4) in which (84) is fitted is pushed back by the tip (84), and the detecting member (6) is a contact piece (61) at the tip.
Is pushed by the top surface of the washer (86), which is the reference surface of the bolt insertion length, and retreats until it hits the tip of the outer socket (3). When the detection member (6) is retracted, the detection switch (7) operates, and the drive circuit (100) closes when the trigger switch (13) is turned on. Turn on the trigger switch (13) to operate the tightening machine and tighten the bolts and nuts.
【０００９】図５は、柱(９)への立込み長さが不足した
ワンサイドボルト(８)及び該ボルトに螺合したナット(8
5)に締付機をセットした状態を示しており、ボルトチッ
プ(84)が嵌まったインナーソケット(４)は該チップ(84)
に押されて後退する。しかし、ワンサイドボルト(８)の
立込み長さが短い分だけ、ナット(85)からのワンサイド
ボルト(８)の突出長さが大きくなって、検出部材(６)の
後退量が小さくなり、検出部材(６)は検出スイッチ(７)
に届かず、トリガースイッチ(13)を操作しても駆動回路
(100)は開いたままであり、締付機は起動しない。従っ
て、ワンサイドボルト(８)の立込み長さが不足したま
ま、ボルト・ナットを締め付ける虞れはない。従来の様
に、柱(９)に立て込んだワンサイドボルト(８)の柱(９)
からの突出長さを測って、立込み長さの適正の可否を確
認する作業を省略でき、ワンサイドボルト(８)とナット
の締付け作業の能率を高めることができる。FIG. 5 shows a one-side bolt (8) having an insufficient standing length in the column (9) and a nut (8) screwed to the bolt.
5) shows a state in which the tightening machine is set, and the inner socket (4) in which the bolt tip (84) is fitted is attached to the tip (84).
It is pushed by and retreats. However, the protruding length of the one-side bolt (8) from the nut (85) is increased by the shorter the upright length of the one-side bolt (8), and the retreat amount of the detection member (6) is reduced. The detection member (6) is a detection switch (7)
Drive circuit even if the trigger switch (13) is operated
(100) remains open and the tightening machine does not start. Therefore, there is no fear that the bolt and nut will be tightened while the upright length of the one-side bolt (8) is insufficient. Pillar (9) of one-side bolt (8) stood on pillar (9) as before
It is possible to omit the operation of measuring the protruding length from the flange and confirming whether the standing length is appropriate or not, thereby increasing the efficiency of the tightening operation of the one-side bolt (8) and the nut.
【００１０】[0010]
【実施例】ボルト・ナット締付機の中空ハウジング(１)
は、ハウジング本体(10)と該本体に回転可能に取付けら
れた本体の先端から突出した筒部材(27)とによって構成
されている。ハウジング本体(10)の基端にハンドル(11)
を突設し、該ハンドルと略平行に電動モータ(12)、エア
ーモータ等の回転駆動源を配備している。ハンドル(11)
には、回転駆動源の後記する駆動回路(100)と該駆動回
路(100)をON−OFFするトリガースイッチ(13)が設けられ
ている。前記筒部材(27)の先端部にアウターソケット
(３)が一体回転可能に接続されている。[Example] Hollow housing for bolt and nut tightening machine (1)
Is constituted by a housing main body (10) and a cylindrical member (27) rotatably mounted on the main body and protruding from the tip of the main body. Handle (11) at base end of housing body (10)
And a rotary drive source such as an electric motor (12) and an air motor is provided substantially parallel to the handle. Handle (11)
Is provided with a drive circuit (100) to be described later and a trigger switch (13) for turning on and off the drive circuit (100). An outer socket is provided at the tip of the cylindrical member (27).
(3) is integrally rotatably connected.
【００１１】筒部材(27)内に遊星歯車減速機構(２)が配
備されている。遊星歯車減速機構(２)は、周知の如く、
遊星歯車支持枠(22)の中心に太陽歯車(21)が位置し、該
支持枠(22)上に支持ピン(24)によって遊星歯車(23)が支
持され、該遊星歯車(23)は前記筒部材(27)の内面に形成
され内歯車(25)及び太陽歯車(21)に噛合している。内歯
車(25)を有する筒部材(27)と遊星歯車支持枠(22)とが、
互いに回転方向が逆の出力軸となり、太陽歯車(21)が入
力軸となっている。実施例では太陽歯車(21)に前段遊星
歯車機構(2a)、前々段遊星歯車機構(2b)及び歯車列(図
示せず)を介して前記電動モータ(12)が連繋され、大減
速、高トルクを得ている。A planetary gear reduction mechanism (2) is provided in the cylindrical member (27). As is well known, the planetary gear reduction mechanism (2)
A sun gear (21) is located at the center of the planetary gear support frame (22), and a planetary gear (23) is supported by a support pin (24) on the support frame (22). It is formed on the inner surface of the cylindrical member (27) and meshes with the internal gear (25) and the sun gear (21). A cylindrical member (27) having an internal gear (25) and a planetary gear support frame (22),
The output shafts have opposite rotation directions, and the sun gear (21) is the input shaft. In this embodiment, the electric motor (12) is connected to the sun gear (21) via a front planetary gear mechanism (2a), a pre-pre-stage planetary gear mechanism (2b) and a gear train (not shown). Has high torque.
【００１２】遊星歯車支持枠(22)に、該枠(22)と同心に
筒状のインナーソケットホルダー(５)が接続されてい
る。インナーソケットホルダー(５)と遊星歯車支持枠(2
2)の互いの対向面には、互いに回転方向に少し余裕のあ
る状態に嵌まり合う、凹部と凸部（何れも図示せず）が
形成され、インナーソケットホルダー(５)は、凹部と凸
部の余裕分だけ遊星歯車支持枠(22)が回転した後、該支
持枠(５)と一体に回転する。この遊星歯車支持枠(22)に
対するインナーソケットホルダー(５)の回転方向の余裕
分は、インナーソケット(４)及びアウターソケット(３)
に対する、ボルトチップ(84)とナット(85)の位相のずれ
を解消する役割をなす。インナーソケットホルダー(５)
内に、スプライン結合により軸方向にスライド可能且つ
該ホルダー(５)と一体回転可能にインナーソケット(４)
が配備される。インナーソケット(４)と遊星歯車支持枠
(22)との間にバネ(41)が配備され、インナーソケット
(４)は、該バネ(41)に付勢されて遊星歯車支持枠(22)か
ら離れてアウターソケット(３)内に位置している。イン
ナーソケットホルダー(５)内に、遊星歯車支持枠(22)に
接して調節リング(42)が交換可能に設けられ、該調節リ
ング(42)の厚みの大小により、インナーソケット(４)が
ボルトチップ(84)に押された時のインナーソケット(４)
の後退位置を調節できる。A cylindrical inner socket holder (5) is connected to the planetary gear support frame (22) concentrically with the frame (22). Inner socket holder (5) and planetary gear support frame (2
2) On the opposing surfaces of each other, a concave portion and a convex portion (both not shown) are formed, which are fitted in a state where there is a margin in the rotational direction, and the inner socket holder (5) has a concave portion and a convex portion. After the planetary gear support frame (22) rotates by a margin of the portion, the planetary gear support frame (22) rotates integrally with the support frame (5). The margin in the rotation direction of the inner socket holder (5) with respect to the planetary gear support frame (22) is equal to the inner socket (4) and the outer socket (3).
This serves to eliminate the phase shift between the bolt tip (84) and the nut (85). Inner socket holder (5)
The inner socket (4) is slidable in the axial direction by spline connection and rotatable integrally with the holder (5).
Is deployed. Inner socket (4) and planetary gear support frame
A spring (41) is provided between the inner socket and the inner socket.
(4) is located in the outer socket (3) apart from the planetary gear support frame (22) by being urged by the spring (41). An adjusting ring (42) is replaceably provided in the inner socket holder (5) in contact with the planetary gear support frame (22), and the inner socket (4) is bolted according to the thickness of the adjusting ring (42). Inner socket (4) when pressed by tip (84)
The retraction position can be adjusted.
【００１３】前記筒部材(27)からアウターソケット(３)
にかけて、筒状の検出部材(６)が嵌まっている。検出部
材(６)はアウターソケット(３)側へ段階的に縮径し、先
端に内向きフランジ状の当り片(61)を有している。検出
部材(６)の後端側には内向きに突片(62)が突設され、筒
部材(27)の外周に軸方向に開設した案内溝(26)に該突片
(62)がスライド可能に嵌まっている。検出部材(６)はバ
ネ(63)によって前方に付勢され、突片(62)が案内溝(26)
の端部当接して、検出部材(６)が最大に前進した図３に
示す状態において、検出部材(６)の当り片(61)はアウタ
ーソケット(３)の先端から距離Ｌ1だけ離れている。[0013] From the cylindrical member (27) to the outer socket (3)
, A tubular detection member (6) is fitted. The detecting member (6) is gradually reduced in diameter toward the outer socket (3), and has an inward flange-shaped contact piece (61) at the tip. A projecting piece (62) projects inward from the rear end side of the detecting member (6). The projecting piece (62) is formed in a guide groove (26) formed in the outer periphery of the cylindrical member (27) in the axial direction.
(62) is slidably fitted. The detecting member (6) is urged forward by a spring (63), and the protruding piece (62) is moved to the guide groove (26).
And end contact, in the state shown in FIG. 3 the detection member (6) is advanced to the maximum, per piece (61) of the detecting member (6) is away from the tip of the outer socket (3) by a distance L 1 I have.
【００１４】ハウジング本体(10)上には、上記検出部材
(６)がアウターソケット(３)に対して所定位置まで後退
したことを検出する検出スイッチ(７)が取り付けられて
いる。実施例の検出スイッチ(７)は、接触式のマイクロ
スイッチであって、図７に示す様に、モータ(14)の駆動
回路(100)に組み込まれている。駆動回路(100)は、導線
(101)(102)の間を、電源(103)、電動モータ(12)、リレ
ー(104)を並列に接続している。電動モータ(12)は、リ
レー(104)によって働く双方向接点(105)を介して一方の
導線(101)にON-OFF可能に接続されている。電源(103)と
電動モータ(12)の間にてトリガースイッチ(13)が、電動
モータ(12)とリレー(104)との間にて検出スイッチ(７)
が、夫々前記双方向接点(105)側の導線(101)に直列に接
続され、トリガースイッチ(13)は常開、検出スイッチ
(７)は常閉で使用する。リレー(104)と検出スイッチ
(７)側の導線(101)との間から分岐線(106)が延びて、前
記双方向接点(105)の２つの接点(105a)(105b)の内の一
方の接点(105b)に繋がっている。他方の接点(105a)は電
動モータ(12)に繋がっている。検出スイッチ(７)のレバ
ー(71)を検出部材(６)で押すことによって、検出スイッ
チ(７)は開く。On the housing body (10), the detecting member is provided.
A detection switch (7) for detecting that (6) has retreated to a predetermined position with respect to the outer socket (3) is attached. The detection switch (7) of the embodiment is a contact type micro switch, and is incorporated in a drive circuit (100) of the motor (14) as shown in FIG. The drive circuit (100) is a lead wire
A power supply (103), an electric motor (12), and a relay (104) are connected in parallel between (101) and (102). The electric motor (12) is connected to one of the wires (101) via a bidirectional contact (105) operated by a relay (104) so as to be able to be turned on and off. A trigger switch (13) is provided between the power supply (103) and the electric motor (12), and a detection switch (7) is provided between the electric motor (12) and the relay (104).
Are respectively connected in series to the conducting wire (101) on the side of the bidirectional contact (105), the trigger switch (13) is normally open, and the detection switch is
(7) is used in a normally closed state. Relay (104) and detection switch
A branch line (106) extends from between the conductor (101) on the (7) side and is connected to one of the two contacts (105a) and (105b) of the bidirectional contact (105). ing. The other contact (105a) is connected to the electric motor (12). By pressing the lever (71) of the detection switch (7) with the detection member (6), the detection switch (7) is opened.
【００１５】検出スイッチ(７)は、前後方向に位置決め
可能な取付け台(72)を介してハウジング(１)に取り付け
られており、検出部材(６)が最も前進してアウターソケ
ット(３)と検出部材(６)の当り片(61)との間がＬ1だけ
離れた状態において、検出スイッチ(７)のレバー(71)と
検出部材(６)の後端との間は該距離Ｌ1よりも短い距離
Ｌ2だけ離れている。The detection switch (7) is mounted on the housing (1) via a mounting table (72) that can be positioned in the front-rear direction, and the detection member (6) moves forward most and is connected to the outer socket (3). in a state in which while is separated by L 1 and per piece of the detection member (6) (61), between the rear end of the detection member and the lever (71) of the detection switch (7) (6) is the distance L 1 They are separated by a short distance L 2 than.
【００１６】然して、締付機をボルト・ナットに係合す
る前の初期状態では、図３に示す如く、バネ(63)付勢さ
れて検出部材(６)の先端の当り片(61)はアウターソケッ
ト(３)の先端よりも前方に位置し、検出スイッチ(７)か
ら離れている。インナーソケット(４)もバネ付勢されて
アウターソケット(３)内に侵入している。図７は、この
時の駆動回路(100)を示しており、トリガースイッチ(1
3)をＯＮしても、リレー(104)に電流が流れて双方向接
点(105)のリレー(104)側の接点(105b)が導線(101)に導
通し、電動モータ(12)は起動しない。However, in the initial state before the tightening machine is engaged with the bolt / nut, as shown in FIG. 3, the spring (63) is urged and the contact piece (61) at the tip of the detection member (6) is moved. It is located forward of the tip of the outer socket (3) and is far from the detection switch (7). The inner socket (4) is also urged by a spring and penetrates into the outer socket (3). FIG. 7 shows the drive circuit (100) at this time, and the trigger switch (1
Even if 3) is turned on, the current flows to the relay (104), the contact (105b) on the relay (104) side of the bidirectional contact (105) conducts to the conducting wire (101), and the electric motor (12) starts. do not do.
【００１７】図４は、柱(９)への立込み長さが適正なワ
ンサイドボルト(８)及び該ボルトに螺合したナット(85)
に締付機をセットした状態を示しており、ボルトチップ
(84)が嵌まったインナーソケット(４)は該チップ(84)に
押されて後退し、又、検出部材(６)は先端の当り片(61)
が座金(86)に押されてアウターソケット(３)の先端に当
るまで後退する。検出部材(６)の後退により図８の如
く、検出スイッチ(７)がＯＦＦとなり、双方向接点(10
5)は電動モータ(12)側の接点(105a)に切り替る。トリガ
ースイッチ(13)をＯＮすれば、電動モータ(12)に通電さ
れ締付機が作動してボルト・ナットの締め付けができ
る。FIG. 4 shows a one-side bolt (8) having an appropriate standing length in the column (9) and a nut (85) screwed to the bolt.
Shows the state in which the tightening machine is set to
The inner socket (4) in which (84) is fitted is pushed back by the tip (84), and the detecting member (6) is a contact piece (61) at the tip.
Is pushed by the washer (86) and retracts until it hits the tip of the outer socket (3). When the detection member (6) is retracted, the detection switch (7) is turned off as shown in FIG.
5) is switched to the contact (105a) on the electric motor (12) side. When the trigger switch (13) is turned on, the electric motor (12) is energized and the tightening machine operates to tighten the bolts and nuts.
【００１８】図９は、締付け途中で、何らかの原因によ
って検出部材(６)が検出スイッチ(７)から離れたときの
駆動回路(100)を示しており、検出スイッチ(７)が閉じ
てリレー(104)に通電がなされ、双方向接点(105)はリレ
ー(104)側の接点(105b)に切替り、電動モータ(12)への
通電が遮断される。トリガースイッチ(13)を一旦ＯＦＦ
にし、リレー(104)への通電を遮断して、双方向接点(10
5)を電動モータ(12)側の接点(105a)に切り替えなけれ
ば、検出部材(６)が再び後退位置に復帰しても、電動モ
ータ(12)は起動しない。即ち、駆動回路(100)は自己保
持機能を有している。FIG. 9 shows the drive circuit (100) when the detecting member (6) separates from the detecting switch (7) during tightening for some reason. When the detecting switch (7) is closed and the relay ( Electricity is supplied to the electric motor (12), the bidirectional contact (105) is switched to the contact (105b) on the side of the relay (104), and the electric power to the electric motor (12) is cut off. Turn off the trigger switch (13) once
And turn off the power to the relay (104).
Unless 5) is switched to the contact (105a) on the electric motor (12) side, the electric motor (12) does not start even if the detection member (6) returns to the retracted position again. That is, the drive circuit (100) has a self-holding function.
【００１９】図５は、柱(９)への立込み長さが小さいワ
ンサイドボルト(８)及び該ボルトに螺合したナット(85)
に締付機をセットした状態を示しており、ボルトチップ
(84)が嵌まったインナーソケット(４)は該チップ(84)に
押されて後退する。しかし、ワンサイドボルト(８)の立
込み長さが小さい分だけ、ナット(85)からのワンサイド
ボルト(８)の突出量が大きくなって、検出部材(６)の後
退量が小さくなり、検出部材(６)は検出スイッチ(７)に
届かず、トリガースイッチ(13)を操作してもモータ駆動
回路(100)は開いたままであり、締付機は起動しない。
従って、ワンサイドボルト(８)の立込み長さが不足した
まま、ボルト・ナットを締め付ける虞れはない。FIG. 5 shows a one-side bolt (8) having a small standing length in the column (9) and a nut (85) screwed to the bolt.
Shows the state in which the tightening machine is set to
The inner socket (4) fitted with (84) is pushed by the tip (84) and retreats. However, the protruding amount of the one-side bolt (8) from the nut (85) increases as the standing length of the one-side bolt (8) decreases, and the retreat amount of the detection member (6) decreases, The detection member (6) does not reach the detection switch (7), and even if the trigger switch (13) is operated, the motor drive circuit (100) remains open and the tightening machine does not start.
Therefore, there is no fear that the bolt and nut will be tightened while the upright length of the one-side bolt (8) is insufficient.
【００２０】従来の様に、柱(９)に立て込んだワンサイ
ドボルト(８)の柱(９)からの突出長さを測って、適正な
立込み長さを確認する作業を省略でき、ワンサイドボル
ト(８)とナットの締付け作業の能率を高めることができ
る。As in the prior art, the length of the one-side bolt (8) protruding from the column (9) protruding from the column (9) to measure the protruding length from the column (9) can be omitted, and the one-side bolt (8) can be omitted. The efficiency of the work of tightening the side bolt (8) and the nut can be improved.
【００２１】本発明の実施において、検出部材(６)の先
端を前方に延し、梁(92)の表面をボルト立込み長さ基準
面となすこともできる。又、本発明の実施において、エ
アーモータを回転源とするとき、上記駆動回路(100)の
電動モータ(12)を、エアーモータの圧力空気供給用電磁
バルブとすればよい。本発明は上記実施例の構成に限定
されることはなく、特許請求の範囲に記載の範囲で種々
の変形が可能である。In the embodiment of the present invention, the tip of the detection member (6) may be extended forward, and the surface of the beam (92) may be used as a bolt insertion length reference plane. In the embodiment of the present invention, when an air motor is used as a rotation source, the electric motor (12) of the drive circuit (100) may be an electromagnetic valve for supplying pressure air to the air motor. The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope described in the claims.
【図１】締付機の正面図である。FIG. 1 is a front view of a tightening machine.
【図２】締付機をアウターソケット側から見た側面図で
ある。FIG. 2 is a side view of the tightening machine viewed from an outer socket side.
【図３】ボルト・ナットに係合前の締付機の要部断面図
である。FIG. 3 is a sectional view of a main part of the tightening machine before engaging with a bolt / nut.
【図４】適正立込み長さのボルト及びナットに締付機を
係合した状態の要部断面図(断面のハッチング省略)であ
る。FIG. 4 is a sectional view of a main part in a state where a tightening machine is engaged with a bolt and a nut having an appropriate standing length (hatching is omitted in the cross section).
【図５】立込み不足のボルト及びナットに締付機を係合
した状態の要部断面図(断面のハッチング省略)である。FIG. 5 is a cross-sectional view of a main part in a state where a tightening machine is engaged with a bolt and a nut with insufficient standing (cross-section hatching is omitted).
【図６】ワンサイドボルト及びナットの正面図である。FIG. 6 is a front view of a one-side bolt and a nut.
【図７】締付機をボルト・ナットにセットする前の駆動
回路図である。FIG. 7 is a drive circuit diagram before setting a tightening machine to a bolt and a nut.
【図８】締付機をボルト・ナットにセットしたときの駆
動回路図である。FIG. 8 is a drive circuit diagram when the tightening machine is set on a bolt / nut.
【図９】締付け途中で、検出スイッチがＯＮしたときの
駆動回路図である。FIG. 9 is a drive circuit diagram when a detection switch is turned on during fastening.
(１) ハウジング (13) トリガースイッチ (２) 遊星歯車減速機構 (３) アウターソケット (４) インナーソケット (５) インナーソケットホルダー (６) 検出部材 (７) 検出スイッチ (71) レバー (８) ワンサイドボルト (81) 軸部 (85) ナット (100) 駆動回路 (1) Housing (13) Trigger switch (2) Planetary gear reduction mechanism (3) Outer socket (4) Inner socket (5) Inner socket holder (6) Detection member (7) Detection switch (71) Lever (8) One Side bolt (81) Shaft (85) Nut (100) Drive circuit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松村 昌造 大阪府大阪市東成区深江北３丁目14番３号 前田金属工業株式会社内 (72)発明者 野田 三郎 大阪府大阪市北区大淀中一丁目１番88号 積水ハウス株式会社内 (72)発明者 原 勝臣 愛知県半田市日東町１番地 住金精圧品工 業株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shozo Matsumura 3-14-3 Fukaekita, Higashinari-ku, Osaka City, Osaka Prefecture Inside Maeda Metal Industry Co., Ltd. (72) Inventor Saburo Noda Nakaichi Oyodo, Kita-ku, Osaka, Osaka No. 1-88, Sekisui House Co., Ltd.
Claims (2)
(11)を突設したハウジング(１)と、 ハウジング(１)に取り付けられ遊星歯車減速機構(２)に
入力する電動モータ(12)等の回転源と、 遊星歯車減速機構(２)の２つの出力軸の内、一方の出力
軸に連繋されボルト先端のチップ(84)に係合し軸方向に
進退可能なインナーソケット(４)と、 遊星歯車減速機構(２)の他方の出力軸に連繋されナット
(85)に係合するアウターソケット(３)と、 ハンドル(11)に設けたトリガースイッチ(13)によって回
転源の起動停止を行なう駆動回路(100)を具えたボルト
・ナット締付機において、 ハウジング(１)上には、バネ付勢されてアウターソケッ
トの先端よりも前方に突出する検出部材(６)がアウター
ソケット(３)の軸方向と平行にスライド可能に取付けら
れ、 検出部材(６)は、アウターソケット(３)へのナット(85)
の嵌合には支障はないが、ナット座金(86)の頂面等のボ
ルト立込み長さ基準面に当接する当り片(61)を有し、 ハウジング(１)には、上記検出部材(６)の後退移行路上
に該検出部材(６)の所定量の後退を検出する検出スイッ
チ(７)が配備され、該検出スイッチ(７)は前記駆動回路
(100)のトリガースイッチ(13)と直列に接続され、検出
部材(６)が所定量後退した状態でなければ、トリガース
イッチ(13)のＯＮに拘わらず駆動回路(100)が開いたま
まであることを特徴とするボルト・ナット締付機。1. A steering wheel having a built-in planetary gear reduction mechanism (2)
A housing (1) protruding from the housing (11), a rotation source such as an electric motor (12) attached to the housing (1) and input to the planetary gear reduction mechanism (2), and a planetary gear reduction mechanism (2). Of the two output shafts, an inner socket (4) that is connected to one of the output shafts and engages with a tip (84) at the tip of a bolt and can move forward and backward in the axial direction, and the other output shaft of the planetary gear reduction mechanism (2) Articulated nut
(85) An outer socket (3) engaged with a handle (11), and a trigger switch (13) provided on a handle (11). On the housing (1), a detection member (6) that is spring-biased and protrudes forward from the tip of the outer socket is slidably mounted in parallel with the axial direction of the outer socket (3). ) Is the nut (85) to the outer socket (3)
Although it does not hinder the fitting of the nut, it has a contact piece (61) that comes into contact with the bolt upright length reference surface such as the top surface of the nut washer (86), and the housing (1) includes the detection member ( 6) A detection switch (7) for detecting a predetermined amount of retreat of the detection member (6) is provided on the retreat transition path, and the detection switch (7) is provided with the drive circuit.
The drive circuit (100) is connected to the trigger switch (13) of (100) in series, and the drive circuit (100) remains open irrespective of the ON state of the trigger switch (13) unless the detection member (6) is retracted by a predetermined amount. A bolt and nut tightening machine characterized by the following.
部材(６)が後退位置から前進して駆動回路(100)が開い
たとき、トリガースイッチ(13)を一旦ＯＦＦにし、検出
部材(６)が後退位置に復帰してから再びトリガースイッ
チ(13)をＯＮにしなれば駆動回路(100)が閉じない自己
保持機能を有している請求項１に記載のボルト・ナット
締付機。2. When the drive circuit (100) is opened by advancing the detection member (6) from the retracted position during the tightening, the trigger switch (13) is temporarily turned off. 2. The bolt / nut tightening machine according to claim 1, wherein the drive circuit (100) has a self-holding function that does not close unless the trigger switch (13) is turned on again after the (6) returns to the retracted position. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479896A JP3647975B2 (en) | 1996-07-04 | 1996-07-04 | Bolt / Nut tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479896A JP3647975B2 (en) | 1996-07-04 | 1996-07-04 | Bolt / Nut tightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1015845A true JPH1015845A (en) | 1998-01-20 |
| JP3647975B2 JP3647975B2 (en) | 2005-05-18 |
Family
ID=15984860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17479896A Expired - Fee Related JP3647975B2 (en) | 1996-07-04 | 1996-07-04 | Bolt / Nut tightening machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3647975B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540206A2 (en) * | 1991-10-15 | 1993-05-05 | International Business Machines Corporation | Information handling apparatus allowing direct memory access |
-
1996
- 1996-07-04 JP JP17479896A patent/JP3647975B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540206A2 (en) * | 1991-10-15 | 1993-05-05 | International Business Machines Corporation | Information handling apparatus allowing direct memory access |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3647975B2 (en) | 2005-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211439744U (en) | Blind rivet nut mounting tool | |
| US7500412B1 (en) | Speed nut and drive gear assembly | |
| JP2756245B2 (en) | Bolt and nut tightening machine | |
| JP3261398B2 (en) | Bolt and nut tightening machine | |
| WO2009129611A2 (en) | Impact mechanism | |
| JP3229930B2 (en) | Bolt tightening machine | |
| JPS5834265B2 (en) | Air driver clutch type torque control device | |
| US3197987A (en) | Rivet tool | |
| JP7490466B2 (en) | Fastening Tools | |
| US11185913B2 (en) | Fastening tool | |
| JPH1015845A (en) | Bolt-nut tightening device | |
| US5951217A (en) | Operating device for a hollow drill | |
| KR100397294B1 (en) | Clamping device with mechanical power amplifier | |
| CN216858414U (en) | Resetting device of hand-held electric cutting tool | |
| FR2607420A1 (en) | ELECTRIC SCREW TIGHTENING TOOL | |
| JP2019051543A (en) | Fastening tool | |
| JPH07266246A (en) | Device for automatically stopping driving motor of thread fastener | |
| JPS6116022Y2 (en) | ||
| GB2408709A (en) | Hand-held machine tool having a threaded clamping means | |
| JP2000079571A (en) | Screw fastening device | |
| JPH11230214A (en) | Automatic adjustment mechanism of disk brake | |
| JP2998886B2 (en) | Reverse pull-out mechanism for connecting screw in screw tightening machine for connecting screw | |
| JP4249344B2 (en) | Rotating tool with striking device | |
| JP2586757B2 (en) | Control circuit for clutch-type electric driver | |
| JPH0440827Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20040324 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20040824 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041022 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050125 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050210 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080218 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110218 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |