JPH0212704B2 - - Google Patents
Info
- Publication number
- JPH0212704B2 JPH0212704B2 JP16881786A JP16881786A JPH0212704B2 JP H0212704 B2 JPH0212704 B2 JP H0212704B2 JP 16881786 A JP16881786 A JP 16881786A JP 16881786 A JP16881786 A JP 16881786A JP H0212704 B2 JPH0212704 B2 JP H0212704B2
- Authority
- JP
- Japan
- Prior art keywords
- ratchet
- engagement
- spindle
- pin
- insertion shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000037431 insertion Effects 0.000 claims description 35
- 238000003780 insertion Methods 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、正方向および逆方向の回転を簡単に
切り替えて使用できる、ラチエツトレンチに係る
ものであつて、切り替え使用上の安定性を高めよ
うとするものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a ratchet trench that can be used by easily switching between forward and reverse rotations, and is intended to improve stability in switching use. That is.
従来の技術
従来、正方向および逆方向の回転を切り替えて
使用できる、ラチエツトレンチは、実公昭59−
41016号、実公昭60−15657号等として広く知られ
ているが、これらのものは、作動時に加えられる
衝撃によつて、正、逆の切り替えスイツチが、作
動中に逆転してしまう場合が有り、正方向回転中
に、急に逆方向回転となる等の危険が有り、好ま
しくないものであつた。Conventional technology Conventionally, the Rachietsu trench, which can be used by switching between forward and reverse rotation, was developed in 1983.
These switches are widely known as No. 41016, Utility Model No. 60-15657, etc., but the forward/reverse switch may reverse during operation due to the impact applied during operation. , there is a danger that the rotation will suddenly occur in the reverse direction during forward rotation, which is not desirable.
発明が解決しようとする問題点
本発明は上述のごとき問題点を解決しようとす
るものであつて、正方向および逆方向の回転を簡
単に切り替えて使用できるとともに正方向若しく
は逆方向に切り替えた場合は、強い衝撃等が加え
られても、自動的に切り替わるような事が無く、
確実な切り替え作業が行なわれた場合においての
み、回転方向の切り替えが行なわれるようにし、
ラチエツトレンチの使用上の安定性を高めようと
するものである。Problems to be Solved by the Invention The present invention attempts to solve the above-mentioned problems, and is capable of easily switching between forward and reverse rotation, and when switching between forward and reverse rotation. will not switch automatically even if a strong impact is applied,
The direction of rotation is switched only when a reliable switching operation is carried out,
This is intended to improve the stability of the Rachietsu trench in use.
問題点を解決するための手段
本発明は上述のごとき問題点を解決するため、
クランクシヤフトを接続し往復回動するラチエツ
トヨークに、スピンドルを回動自在に挿入し、こ
のスピンドルに揺動可能に軸支固定したラチエツ
トを、ラチエツトヨークに正方向係合または逆方
向係合し得るよう押圧ピンで押圧し、この押圧ピ
ンを、スピンドルに回動自在に挿入した挿入軸の
側面に、適宜の付勢力で突出するとともにスピン
ドルの上面の係合穴から係合ピンを進退可能に突
出し、この係合ピンの突出部を挿入係合し得る係
合受穴を、挿入軸にラチエツトの正方向係合用と
逆方向係合用の2個形成し、この係合受穴に挿入
係合するとともに係合ピンを係合受穴から押し出
し得る係合解除ピンを突出した押圧駒を、挿入軸
の外面に進退可能に形成して成るものである。Means for Solving the Problems The present invention solves the above problems by:
A spindle is rotatably inserted into a ratchet yoke that connects the crankshaft and rotates back and forth, and the ratchet, which is pivotably fixed to the spindle, is pressed so that it can engage with the ratchet yoke in the forward or reverse direction. The pressing pin is pressed with a pin, and this pressing pin is projected with an appropriate biasing force from the side of the insertion shaft that is rotatably inserted into the spindle, and the engaging pin is movably projected from the engaging hole on the upper surface of the spindle. Two engagement receiving holes into which the protrusion of the engagement pin can be inserted and engaged are formed on the insertion shaft, one for engaging the ratchet in the forward direction and the other for engaging in the reverse direction, and the protruding portion of the engagement pin can be inserted into and engaged with the engagement receiving hole. A pressing piece having a protruding disengagement pin capable of pushing out the mating pin from the engagement receiving hole is formed on the outer surface of the insertion shaft so as to be movable back and forth.
作 用
本発明は上述のごとく構成したものであるか
ら、まず原動機を作動してクランクシヤフトを回
動し、クランクシヤフトの先端を円運動すれば、
クランクシヤフトと一端を接続するラチエツトヨ
ークも、正逆の往復回転を繰り返すものとなる。
この正逆の回転は、ラチエツトヨークに回動自在
に挿入したスピンドルに、揺動可能に軸支固定し
たラチエツトを介して、ラチエツトヨークの一方
向の回転に変換される。この変換は、スピンドル
に回動自在に挿入した挿入軸の側面の押圧ピン
で、ラチエツトの偏心位置を押圧付勢すれば、ラ
チエツトは軸を支点として一方に偏り、ラチエツ
トヨークの内歯車と係合し、スピンドルを一方向
にのみ回転する。そして、上記押圧ピンを突出し
た挿入軸は、スピンドルの上面の係合穴から突出
した係合ピンを、係合受穴に挿入係合しているか
ら、挿入軸とスピンドルとは相対的に回転不能と
成り、挿入軸にスピンドル回転方向の強い衝撃が
加えられても、挿入軸が回転し、押圧ピンによる
ラチエツトの押圧位置が変更される事はない。Function Since the present invention is configured as described above, first, the prime mover is activated to rotate the crankshaft and the tip of the crankshaft is moved in a circular motion.
The ratchet yoke, which connects one end to the crankshaft, also rotates back and forth in forward and reverse directions.
This forward and reverse rotation is converted into unidirectional rotation of the ratchet yoke via the ratchet which is pivotably fixed to a spindle rotatably inserted into the ratchet yoke. This conversion can be achieved by pressing the eccentric position of the ratchet with a pressure pin on the side of the insertion shaft rotatably inserted into the spindle.The ratchet will be biased to one side with the shaft as a fulcrum and will engage with the internal gear of the ratchet yoke. , rotates the spindle in one direction only. The insertion shaft that protrudes the pressing pin inserts and engages the engagement pin that protrudes from the engagement hole on the upper surface of the spindle into the engagement receiving hole, so the insertion shaft and the spindle rotate relative to each other. Even if a strong impact is applied to the insertion shaft in the direction of rotation of the spindle, the insertion shaft will rotate and the position at which the ratchet is pressed by the pressing pin will not be changed.
またラチエツトのラチエツトヨークへの係合を
上記とは逆にするには、押圧駒を挿入軸方向に押
圧することにより、押圧駒に突出した係合解除ピ
ンを、正方向係合用と逆方向係合用の2個形成し
た係合受穴に挿入係合すれば、2個の係合解除ピ
ンの一つは、スピンドルの上面に突き当たるとと
もに他の一つは、係合ピンを係合受穴から押し出
し、挿入軸を回転可能とする。この状態で挿入軸
を回転すれば、押圧ピンはラチエツトの押圧位置
を変更し、前記とは逆方向にのみスピンドルを回
転するよう、ラチエツトをラチエツトヨークに係
合する。そして押圧駒への押圧力を解除すれば、
押圧駒は復元し、係合ピンを挿入軸の前記とは異
なる係合受穴に挿入係合し、挿入軸のスピンドル
に対する回転を困難とするものである。 In addition, to reverse the engagement of the ratchet to the ratchet yoke as described above, by pressing the pressing piece in the direction of the insertion axis, the engagement release pin protruding from the pressing piece can be set for forward direction engagement and reverse direction engagement. When the two disengagement pins are inserted into and engaged with the two formed engagement receiving holes, one of the two disengagement pins abuts against the upper surface of the spindle, and the other one pushes the engagement pin out of the engagement receiving hole. , the insertion shaft can be rotated. When the insertion shaft is rotated in this state, the pressing pin changes the pressing position of the ratchet and engages the ratchet with the ratchet yoke so as to rotate the spindle only in the opposite direction. Then, if you release the pressure on the pressure piece,
The pressing piece is restored and the engagement pin is inserted into and engaged with a different engagement receiving hole of the insertion shaft, thereby making it difficult to rotate the insertion shaft with respect to the spindle.
実施例
以下本発明の一実施例を図面に於いて説明すれ
ば、1はラチエツトヨークで、原動機(図示せ
ず)と接続する、クランクシヤフト2のブツシユ
3を、一端の弧状凹部4に反復回動可能に接続
し、中央部の内周に内歯車5を形成するとともに
この内歯車5内に、スピンドル6を回動自在に挿
入している。このスピンドル6は下端に、治具を
接続するための固定部7を、ハウジング8からワ
ツシヤー10を介して、外方に突出するとともに
一側に対向して設けた、挿入壁11,12間に、
ラチエツト13を、固定軸14によつて揺動可能
に軸支固定している。このラチエツト13を、ラ
チエツトヨーク1の内歯車5に対し、正方向係合
または逆方向係合し得るよう押圧ピン15で押圧
することにより、スピンドル6の正逆回転を可能
とするものであるが、この押圧ピン15は、スピ
ンドル6の軸心に回動自在に挿入した挿入軸16
の側面に、押圧発条17により適宜の付勢力で突
出され、ラチエツト13を固定軸14から偏心し
た位置で押圧している。そして、スピンドル6の
上面に穿設した係合穴18から、押出発条20に
よつて係合ピン21を進退可能に付勢突出し、こ
の係合ピン21の突出部を、いずれか一方に挿入
係合し得る係合受穴22,23を、挿入軸16の
環状鍔24に、ラチエツト13の正方向係合用と
逆方向係合用の2個形成している。また、この係
合受穴22,23に挿入係合するとともに係合ピ
ン21を、係合受穴22,23から押し出し得る
係合解除ピン25,26を押圧駒27の下面に2
個突出し、この押圧駒27を、挿入軸16の上面
から軸方向に固定したビス28の外周を被覆する
カラー30の外周に、摺動自在に位置するととも
に常時は、発条31によつて、係合ピン21の非
押圧方向に押圧付勢することにより、挿入軸16
の外面に進退可能に形成している。Embodiment An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a ratchet yoke, which repeatedly rotates a bush 3 of a crankshaft 2 connected to a prime mover (not shown) into an arcuate recess 4 at one end. An internal gear 5 is formed on the inner periphery of the central portion, and a spindle 6 is rotatably inserted into the internal gear 5. This spindle 6 has a fixing part 7 at its lower end for connecting a jig, which protrudes outward from the housing 8 via a washer 10 and is provided between insertion walls 11 and 12, which are provided oppositely on one side. ,
The ratchet 13 is pivotally supported by a fixed shaft 14 so as to be swingable. By pressing this ratchet 13 with the press pin 15 so that it can engage with the internal gear 5 of the ratchet yoke 1 in the forward direction or in the reverse direction, the spindle 6 can be rotated in the forward and reverse directions. This pressing pin 15 is connected to an insertion shaft 16 which is rotatably inserted into the axis of the spindle 6.
A pressing spring 17 projects from the side surface with an appropriate biasing force, and presses the ratchet 13 at a position eccentric from the fixed shaft 14. Then, an engagement pin 21 is biased and protruded from an engagement hole 18 formed in the upper surface of the spindle 6 so as to be movable forward and backward by an extrusion strip 20, and the protruding portion of this engagement pin 21 is inserted into either one. Two engaging receiving holes 22 and 23 are formed in the annular collar 24 of the insertion shaft 16, one for engaging the ratchet 13 in the forward direction and the other for engaging in the reverse direction. Furthermore, disengagement pins 25 and 26 that can be inserted into and engaged with the engagement receiving holes 22 and 23 and push out the engagement pin 21 from the engagement receiving holes 22 and 23 are provided on the lower surface of the pressing piece 27.
This pressing piece 27 is slidably located on the outer periphery of a collar 30 that covers the outer periphery of a screw 28 fixed in the axial direction from the upper surface of the insertion shaft 16, and is normally engaged by a spring 31. By pressing and biasing the dowel pin 21 in the non-pressing direction, the insertion shaft 16
It is formed on the outer surface so that it can move forward and backward.
上述のごとく構成したものに於いて、まず原動
機(図示せず)を作動してクランクシヤフト2を
回動させれば、先端のブツシユ3部分が円運動す
るから、ラチエツトヨーク1は正逆の回転揺動を
繰り返すものとなる。この正逆の回転は、ラチエ
ツトヨーク1に回動自在に挿入したスピンドル6
に、揺動可能に軸支固定したラチエツト13を介
して、ラチエツトヨーク1の正方向の回転に変換
される。この変換は、第4図に示すごとく、スピ
ンドル6に回動自在に挿入した挿入軸16の側面
の押圧ピン15で、ラチエツト13の固定軸14
から、ずれた偏心位置を押圧付勢すれば、ラチエ
ツト13は固定軸14を支点として一方に偏り、
ラチエツトヨーク1の内歯車5と係合し、スピン
ドル6を正方向にのみ回転する。そして、上記押
圧ピン15を突出した挿入軸16は、スピンドル
6の上面の係合穴18から突出した係合ピン21
を、第2図、第3図に示すごとく、係合受穴22
に挿入係合しているから、挿入軸16とスピンド
ル6とは相対的に回転不能と成り、挿入軸16に
スピンドル6回転に伴なう強い衝撃が加えられて
も、挿入軸16が回転し、押圧ピン15によるラ
チエツト13の押圧位置が変更される事はなく、
この状態でスピンドル6は常に、正方向の回転の
みが可能となる。 In the configuration as described above, when the prime mover (not shown) is first activated to rotate the crankshaft 2, the bush 3 at the tip moves in a circular motion, so the ratchet yoke 1 rotates in the forward and reverse directions. The movement will be repeated. This forward and reverse rotation is performed by a spindle 6 rotatably inserted into the ratchet yoke 1.
The rotation is then converted into a forward rotation of the ratchet yoke 1 via the ratchet 13 which is pivotably fixed in a swingable manner. As shown in FIG. 4, this conversion is carried out by pressing the fixed shaft 14 of the ratchet 13 with the pressing pin 15 on the side of the insertion shaft 16 rotatably inserted into the spindle 6.
If the deviated eccentric position is pressed and energized, the ratchet 13 will be biased to one side with the fixed shaft 14 as the fulcrum.
It engages with the internal gear 5 of the ratchet yoke 1 and rotates the spindle 6 only in the forward direction. The insertion shaft 16 from which the pressing pin 15 is projected is connected to the engagement pin 21 which projects from the engagement hole 18 on the upper surface of the spindle 6.
As shown in FIGS. 2 and 3, the engagement receiving hole 22
Since the insertion shaft 16 and the spindle 6 are inserted and engaged, the insertion shaft 16 and the spindle 6 are relatively unrotatable, and even if a strong impact is applied to the insertion shaft 16 due to the rotation of the spindle 6, the insertion shaft 16 will not rotate. , the pressing position of the ratchet 13 by the pressing pin 15 is not changed,
In this state, the spindle 6 can always rotate only in the forward direction.
また、ラチエツト13の、ラチエツトヨーク1
への係合を上記と逆にするには、押圧駒27を挿
入軸16方向に押圧することにより、押圧駒27
に突出した係合解除ピン25,26を、正方向係
合用と逆方向係合用の2個形成した係合受穴2
2,23に挿入係合すれば、2個の係合解除ピン
25,26の1つは、スピンドル6の上面に突き
当たるとともに他の一つは、係合ピン21を係合
受穴22から押し出し、挿入軸16をスピンドル
6と分離し、回転可能とする。この状態で挿入軸
16を、押圧駒27とともに回転すれば、第6図
に示すごとく、押圧ピン15はラチエツト13の
押圧位置を変更し、前記とは逆方向にのみスピン
ドル6を回転するよう、ラチエツト13をラチエ
ツトヨーク1の内歯車5に係合する。そして、押
圧駒27への押圧力を解除すれば、押圧駒27は
発条31の復元力で復元し、第5図に示すごと
く、係合ピン21を挿入軸16の正回転時とは異
なる係合受穴23に挿入係合し、挿入軸16のス
ピンドル6に対する回転を困難とするものであ
る。 Also, the ratchet yoke 1 of the ratchet 13
To reverse the engagement with the above, press the pressing piece 27 in the direction of the insertion shaft 16.
An engagement receiving hole 2 in which two engagement release pins 25 and 26 are formed, one for forward engagement and one for reverse engagement.
2 and 23, one of the two disengagement pins 25 and 26 abuts against the upper surface of the spindle 6, and the other one pushes the engagement pin 21 out of the engagement receiving hole 22. , the insertion shaft 16 is separated from the spindle 6 and is rotatable. If the insertion shaft 16 is rotated together with the pressing piece 27 in this state, the pressing pin 15 changes the pressing position of the ratchet 13 and rotates the spindle 6 only in the opposite direction to the above, as shown in FIG. The ratchet 13 is engaged with the internal gear 5 of the ratchet yoke 1. Then, when the pressing force on the pressing piece 27 is released, the pressing piece 27 is restored by the restoring force of the spring 31, and as shown in FIG. It is inserted into and engaged with the receiving hole 23 and makes it difficult for the insertion shaft 16 to rotate relative to the spindle 6.
発明の効果
本発明は上述のごとく構成したものであるか
ら、スピンドルの回転方向を、正方向および逆方
向の回転を、簡単に切り替えて使用できるととも
に正方向若しくは逆方向に切り替えた場合は、強
い衝撃等が加えられても、自動的に切り替わるよ
うな事が無く、確実な切り替え作業が行なわれた
場合においてのみ、回転方向の切り替えが行なわ
れ、ラチエツトレンチの使用上の安定性を高める
ものである。Effects of the Invention Since the present invention is configured as described above, the rotation direction of the spindle can be easily switched between forward and reverse rotation, and when switched to forward or reverse, the rotation direction is strong. Even if an impact is applied, there is no automatic switching, and the direction of rotation is switched only when the switching operation is performed reliably, increasing the stability of use of the Rachiets trench. It is.
図面は本発明の一実施例を示すものであつて、
第1図は分解斜視図、第2図は断面図、第3図は
スピンドルと挿入軸の関係を示す係合受穴部分の
正回転状態の横断面図、第4図は正回転状態に於
ける押圧ピンとラチエツトの関係を示す横断面
図、第5図はスピンドルと挿入軸の関係を示す係
合受穴部分の逆回転状態の横断面図、第6図は逆
回転状態に於ける押圧ピンとラチエツトの関係を
示す横断面図である。
1……ラチエツトヨーク、2……クランクシヤ
フト、6……スピンドル、13……ラチエツト、
15……押圧ピン、16……挿入軸、18……係
合穴、21……係合ピン、22,23……係合受
穴、25,26……係合解除ピン、27……押圧
駒、28……ビス、30……カラー、31……発
条。
The drawings show one embodiment of the invention,
Fig. 1 is an exploded perspective view, Fig. 2 is a cross-sectional view, Fig. 3 is a cross-sectional view of the engagement receiving hole in the forward rotation state showing the relationship between the spindle and the insertion shaft, and Fig. 4 is the normal rotation state. Figure 5 is a cross-sectional view showing the relationship between the spindle and the insertion shaft in a reverse rotation state of the engagement receiving hole, and Figure 6 is a cross-sectional view showing the relationship between the pressure pin and the ratchet in the reverse rotation state. FIG. 3 is a cross-sectional view showing the relationship between ratchets. 1... Ratchet yoke, 2... Crankshaft, 6... Spindle, 13... Ratchet,
15...Press pin, 16...Insertion shaft, 18...Engagement hole, 21...Engagement pin, 22, 23...Engagement receiving hole, 25, 26...Engagement release pin, 27...Press Piece, 28... screw, 30... color, 31... spring.
Claims (1)
エツトヨークに、スピンドルを回動自在に挿入
し、このスピンドルに揺動可能に軸支固定したラ
チエツトを、ラチエツトヨークに正方向係合また
は逆方向係合し得るよう押圧ピンで押圧し、この
押圧ピンを、スピンドルに回動自在に挿入した挿
入軸の側面に、適宜の付勢力で突出するとともに
スピンドルの上面の係合穴から係合ピンを進退可
能に突出し、この係合ピンの突出部を挿入係合し
得る係合受穴を、挿入軸にラチエツトの正方向係
合用と逆方向係合用の2個形成し、この係合受穴
に挿入係合するとともに係合ピンを係合受穴から
押し出し得る係合解除ピンを突出した押圧駒を、
挿入軸の外面に進退可能に形成したものであるこ
とを特徴とするラチエツトレンチ。 2 押圧駒は、挿入軸の上面から軸方向に固定し
たビスの外周を被覆するカラーの外周に、摺動自
在に位置するとともに発条によつて、係合ピンの
非押圧方向に押圧付勢したものであることを特徴
とする特許請求の範囲第1項記載のラチエツトレ
ンチ。[Claims] 1. A spindle is rotatably inserted into a ratchet yoke that connects the crankshaft and rotates back and forth, and the ratchet, which is pivotably fixed to the spindle, is engaged with the ratchet yoke in the forward direction or in the reverse direction. The pressing pin is pressed with an appropriate biasing force to the side surface of the insertion shaft which is rotatably inserted into the spindle, and the engaging pin is pushed out from the engaging hole on the upper surface of the spindle. Two engagement receiving holes are formed on the insertion shaft, one for engaging the ratchet in the forward direction and the other for engaging in the reverse direction, into which the protrusion of the engagement pin can be inserted and engaged. a pressing piece that protrudes an engagement release pin that can be inserted into the engagement hole and pushed out the engagement pin from the engagement receiving hole;
A ratchet trench characterized by being formed on the outer surface of an insertion shaft so that it can move forward and backward. 2 The pressing piece is slidably located on the outer periphery of the collar that covers the outer periphery of the screw fixed in the axial direction from the upper surface of the insertion shaft, and is biased by the spring in the non-pressing direction of the engagement pin. The ratchet trench according to claim 1, characterized in that the ratchet trench is:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16881786A JPS6328571A (en) | 1986-07-17 | 1986-07-17 | Ratchet wrench |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16881786A JPS6328571A (en) | 1986-07-17 | 1986-07-17 | Ratchet wrench |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6328571A JPS6328571A (en) | 1988-02-06 |
JPH0212704B2 true JPH0212704B2 (en) | 1990-03-26 |
Family
ID=15875052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16881786A Granted JPS6328571A (en) | 1986-07-17 | 1986-07-17 | Ratchet wrench |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6328571A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4359407B2 (en) | 2001-06-11 | 2009-11-04 | 埼玉精機株式会社 | Powered ratchet wrench |
-
1986
- 1986-07-17 JP JP16881786A patent/JPS6328571A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6328571A (en) | 1988-02-06 |
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Legal Events
Date | Code | Title | Description |
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LAPS | Cancellation because of no payment of annual fees |