JP3001811B2 - Improved ratchet wrench structure with high torque - Google Patents
Improved ratchet wrench structure with high torqueInfo
- Publication number
- JP3001811B2 JP3001811B2 JP8179562A JP17956296A JP3001811B2 JP 3001811 B2 JP3001811 B2 JP 3001811B2 JP 8179562 A JP8179562 A JP 8179562A JP 17956296 A JP17956296 A JP 17956296A JP 3001811 B2 JP3001811 B2 JP 3001811B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- high torque
- arc
- arcuate
- ratchet wrench
- 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 - Lifetime
Links
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高いトルクを持つラ
チェットレンチに関する改良構造であり、主に業務用の
保守用によく使われ、例えば、自動車の保守技術者が便
利に使用するラチェットレンチに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved structure of a ratchet wrench having a high torque, and more particularly to a ratchet wrench frequently used for maintenance for business use, for example, which is conveniently used by a car maintenance engineer.
【０００２】[0002]
【従来の技術】人間の文明において、ハンドツールがず
っと大切な地位を占め、ねじが発明されると、スパナが
重要なポジションを占めた。しかしながら、スパナの種
類がいろいろあり、例えば、複合スパナ、ダブル口開け
のスパナ、ダブルボックススパナ、ラチェットレンチな
どが挙げられる。その中で、ラチェットレンチは図７の
形状が一例を示すがその大部分が図６に示すようであ
る。方向の変更ボタン（４１）がラチェットレンチの先
端に設けられ、手で握る位置との距離が長いので、ユー
ザが使う場合に、片手で握り、もう一つの手で正、逆転
を変えるために、変更ボタンを動かさなければならな
い。そのようなラチェットレンチが高いトルクを持ち、
正、逆転できるが、以下に示すような先天性の大きな欠
点がある。BACKGROUND OF THE INVENTION In human civilization, hand tools occupy a much more important position, and when the screw was invented, the spanner occupied an important position. However, there are various types of spanners, such as a composite spanner, a double-opening spanner, a double-box spanner, and a ratchet wrench. Among them, the ratchet wrench has an example shown in FIG. 7, but most of the shape is as shown in FIG. A direction change button (41) is provided at the tip of the ratchet wrench, and the distance from the position to be gripped by the hand is long, so when the user uses it, in order to hold it with one hand and change the forward / reverse with the other hand, You have to move the change button. Such a ratchet wrench has high torque,
It can be turned forward or backward, but it has the following serious disadvantages.
【０００３】その内部のパーツが複雑で、大きなヘッド
を持つので、小さいスペースの作業環境で使用出来なか
った。ボックスをヘッドに挿入すると、ヘッドの寸法が
大きすぎるので、専業のユーザが小さいスペースで用い
る場合に図７に示す道具を選択する。しかし、欠点が依
然として存在する。つまり、小さい角度だけ回してか
ら、ナットと一度分離し、再びはめてまた小さい角度だ
け回すという方式でくりかえさなければナットを締付け
る事が出来なかった。それは解決しなければならない大
きな欠点である。[0003] Since the internal parts are complicated and have a large head, they cannot be used in a work environment of a small space. When the box is inserted into the head, the dimensions of the head are too large, so that a dedicated user selects the tool shown in FIG. 7 when used in a small space. However, disadvantages still exist. In other words, it was impossible to tighten the nut unless the nut was repeatedly turned by turning it by a small angle, then separating it once from the nut, fitting it again and turning it again by a small angle. That is a major drawback that must be resolved.
【０００４】故に、発明者が加工の容易な、高いトルク
を持つラチェットレンチの改良構造を開発し、前述した
欠点を解決する。Therefore, the inventor has developed an improved structure of a ratchet wrench which is easy to process and has a high torque, and solves the above-mentioned disadvantages.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は操作及
び組み立ての容易な、業務用の保守作業に適用する、高
いトルクを持つラチェットレンチの改良構造を提供す
る。本発明の構造は汚物がラチェットレンチに入るのを
防ぐ事が出来、自動的にその汚物をラチェットレンチの
本体の外部へ排出させるので、業務用の保守作業に適す
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved structure of a ratchet wrench with high torque which is easy to operate and assemble and which is adapted for maintenance work for business use. The structure of the present invention can prevent dirt from entering the ratchet wrench and automatically discharge the dirt out of the body of the ratchet wrench, which is suitable for maintenance work for business use.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明の構造は、主にスパナの本体を有し、一方、本
体がヘッド及び把っ手に分けられる。ヘッドに、環状ギ
アを入れるために、放置スペースを設けられる。環状ギ
アの外周に、ラチェット歯が形成される。ヘッドから把
っ手への横向に沿って、凹んだ円弧部を設置し、円弧部
の中に、凸柱を持つ弧形ギアを設置する。SUMMARY OF THE INVENTION In order to achieve the above object, the structure of the present invention mainly has a main body of a spanner, while the main body is divided into a head and a handle. A leaving space is provided in the head for receiving an annular gear. Ratchet teeth are formed on the outer periphery of the ring gear. A concave arc portion is set along the horizontal direction from the head to the handle, and an arc gear having a convex column is set in the arc portion.
【０００７】また、円弧部の中に、制御体を嵌め込むた
めに、凹んだ切欠部を設ける。前記した制御体は主に弾
性を持つ鉄板で製造され、その先端に凸体が二つ設けら
れ、その左、右両端に、翼状板が形成され、その末端
に、Ｕ形のフックもあって、中央に支持柱も延ばされ
る。なお、圧縮スプリングも用意される。 [0007] A concave notch is provided in the arc to fit the control body . The above-mentioned control body is mainly manufactured by an iron plate having elasticity, two convex bodies are provided at the tip, wing-like plates are formed at the left and right ends, and a U-shaped hook is provided at the end. , supporting lifting columns are also extended to the center. A compression spring is also provided .
【０００８】本発明の上記のパーツを組み立てる場合
に、まず、動作の制御体を凹んだ円弧部に押し入れ、先
端における二つの凸体を円弧部の中に入れる。その動作
の制御体がやや弾性を持つ板だから、凸体を円弧部に押
し入れるときに、フックを適合するように凹んだ切欠部
に嵌め込む。そして、順に圧縮スプリング及び弧形ギア
を放置スペースから入れて、圧縮スプリングの一端を制
御体の支持柱にはめ、もう一端を弧形ギアの凸柱にはめ
て完成する。[0008] When assembling the above parts of the present invention, first, the operation control body is pushed into the concave arc portion, and the two convex bodies at the tips are inserted into the arc portion. Since the operation control body is a slightly elastic plate, when the convex body is pushed into the arc portion, the hook is fitted into the concave notch so as to be fitted. Then, the compression spring and the arc-shaped gear are sequentially inserted from the left space, and one end of the compression spring is fitted to the supporting column of the control body, and the other end is fitted to the convex column of the arc-shaped gear to complete the operation.
【０００９】[0009]
【発明の実施の形態】本発明の構造を理解するために、
以下、図面を参照して好ましい実施例を詳細に説明す
る。図１を参照するに、本発明による高いトルクを持つ
ラチェットレンチの改良構造は図面に示すように、主に
スパナの本体１を有し、一方、本体１はヘッド１０及び
把っ手１１に分けられる。ヘッド１０に環状ギア２０を
入れるために、放置スペース１２を設ける。環状ギア２
０の外周に、ラチェット歯２１が形成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to understand the structure of the present invention,
Hereinafter, preferred embodiments will be described in detail with reference to the drawings. Referring to FIG. 1, the improved structure of the high torque ratchet wrench according to the present invention has a main body 1 of a spanner as shown in the drawing, while the main body 1 is divided into a head 10 and a handle 11. Can be A leaving space 12 is provided for inserting the ring gear 20 into the head 10. Annular gear 2
Ratchet teeth 21 are formed on the outer periphery of the zero.
【００１０】ヘッド１０から把っ手１１への横向に沿っ
て、凹んだ円弧部１３を設置し、円弧部１３の中に、凸
柱１４１を持つ弧形ギア１４を設置する。また、円弧部
１３の中に、図３に示すように、動作の制御体１５を嵌
め込むために、凹んだ切欠部１３１も設ける。前記した
動作の制御体１５は主に弾性を持つ鉄板で製造され、そ
の先端に凸体１５１，１５２が二つ設けられ、その左、
右両端に、翼状板１５３，１５４が形成され、その末端
に、“Ｕ”形のフック１５５を設け、中央に、支持柱１
５６も延在される。なお、圧縮スプリング１６も用意さ
れる。A concave arc portion 13 is provided along the horizontal direction from the head 10 to the handle 11, and an arc gear 14 having a convex column 141 is installed in the arc portion 13. Further, as shown in FIG. 3, a concave cut-out portion 131 is provided in the arc portion 13 to fit the operation control body 15. The control body 15 of the above-described operation is mainly made of an iron plate having elasticity, and two convex bodies 151 and 152 are provided at the tip thereof.
Wing plates 153 and 154 are formed at both right ends, and a “U” -shaped hook 155 is provided at the end thereof.
56 is also extended. Note that a compression spring 16 is also provided.
【００１１】図１，図３に示すように、以上に述べたパ
ーツを組み立てる場合に、まず、動作の制御体１５を凹
んだ円弧部１３に押し込み、かつ、先端における二つの
凸体１５１，１５２を円弧部１３の中に入れる。図３か
らはっきり見えるように、凸体１５１，１５２が密着に
円弧部１３と押合され、動作の制御体１５のフック１５
５が切欠部１３１の中に適合するよう嵌められる。すな
わち、その動作の制御体１５がやや弾性を持つ板である
故に、凸体１５１，１５２が円弧部１３に押し込まれる
ときに、フック１５５は切欠部１３１に適合するように
凹状に形成された切欠部１５５に嵌め込まれる。そし
て、順に圧縮スプリング１６及び弧形ギア１４を放置ス
ペース１２から入れて、圧縮スプリングの一端を制御体
１５の支持柱１５６にはめ、もう一端を弧形ギア１４の
凸柱１４１にはめると、図２に示されるように完成す
る。As shown in FIGS. 1 and 3, when assembling the parts described above, first, the operation control body 15 is pushed into the concave arc portion 13 and the two convex bodies 151, 152 at the tip end. Into the arc 13. As can be clearly seen from FIG. 3, the convex bodies 151 and 152 are pressed against the arc portion 13 in close contact with each other, and the hooks 15 of the operation control body 15 are moved.
5 fits into notch 131. That is, since the operation control body 15 is a slightly elastic plate, when the convex bodies 151 and 152 are pushed into the arc portion 13, the hooks 155 are formed in concave notches so as to fit into the notches 131. It is fitted into the part 155. Then, the compression spring 16 and the arc gear 14 are sequentially inserted from the leaving space 12, and one end of the compression spring is inserted into the support column 156 of the control body 15, and the other end is inserted into the convex column 141 of the arc gear 14. Complete as shown in Figure 2.
【００１２】図３を参照するに、それは本発明の動作を
示す図面である。本発明の環状ギア２０がナットを逆時
計回りに作動させる場合に、環状ギア２０のラチェット
歯２１が弧形ギア１４と噛合しながら、弧形ギア１４を
実線から、点線まで移行させる。そのあとでスプリング
１６の弾力により、弧形ギアを元の位置に復帰させる。
そのように繰りかえすことにより、本発明による高いト
ルクを持つ駆動という目的が達成される。Referring to FIG. 3, it is a diagram illustrating the operation of the present invention. When the annular gear 20 of the present invention operates the nut in the counterclockwise direction, the ratchet teeth 21 of the ring gear 20 mesh with the arc gear 14 and move the arc gear 14 from a solid line to a dotted line. Thereafter, the arc gear is returned to the original position by the elasticity of the spring 16.
By repeating as such, the purpose of the drive with high torque according to the present invention is achieved.
【００１３】しかし、保守整備の場合に、汚物がいつも
スパナの中に入る恐れがあるので、弧形ギア１４が前記
の作動に従わず、環状ギア２０と分離できない場合が生
じる。そのとき、環状ギア２０の駆動で、図４に示すよ
うに、弧形ギア１４が環状ギア２０について、前へ移動
していく。制御体１５の翼形板１５３，１５４の前に至
るとき、環状ギア２０の作用力で、制御体１５が横向力
（図４中、Ｆ）をひき起こすと共に、正向力（ｆ 1 ）及
び縦向力（ｆ 2 ）も発生する。これにより、弧形ギア１
４が翼形板１５３，１５４の摺動面に沿って移動する。
結局、弧形ギア１４と環状ギア２０が離れ、さらに、ス
プリング１６の弾力によって、弧形ギア１４をもともと
凹んだ円弧部の位置に復帰させる。図５に明らかに示す
ように、弧形ギア１４の移動距離が実線で表される。こ
のように設計されることにより、本発明のラチェットレ
ンチは故障が少ない。However, in the case of maintenance, there is a possibility that dirt may always enter the spanner, so that the arc gear 14 does not follow the operation described above and cannot be separated from the annular gear 20.
I will . At this time, by driving the annular gear 20, as shown in FIG.
Thus, the arcuate gear 14 moves forward with respect to the annular gear 20.
I will do it. In front of the airfoil plates 153 and 154 of the control body 15
When the control body 15 is actuated by the annular gear 20,
(F in FIG. 4 ) and the forward force (f 1 )
And a longitudinal force (f 2 ) is also generated. Thereby, the arc gear 1
4 moves along the sliding surface of the airfoil plates 153,154.
Eventually, the arc gear 14 and the ring gear 20 separate, and
Due to the elasticity of the pulling 16, the arc gear 14
Return to the position of the concave arc. As clearly shown in FIG. 5, the moving distance of the arc gear 14 is represented by a solid line. With such a design, the ratchet wrench of the present invention has few failures.
【００１４】要約すると、本発明による高いトルクを持
つラチェットレンチの改良構造は、動作の制御体１５を
利用して、弧形ギア１４を強制的に退かせ（図面の点線
で示す）汚物が侵入しても、作動が可能であり、整備保
守に使用して容易で故障が少ないという利点を有する業
務用の道具である。In summary, the improved structure of the high torque ratchet wrench according to the present invention utilizes the motion control 15 to forcibly retreat the arcuate gear 14 (indicated by the dashed lines in the drawing) and to introduce dirt. However, it is an industrial tool that can be operated, has the advantage of being easy to use for maintenance, and has few failures.
【００１５】[0015]
【発明の効果】以上の内容をまとめると、本発明による
高いトルクを持つラチェットレンチの改良構造は従来の
ラチェットレンチ及び複合スパナにおける欠点を改善
し、次の利点を有する。 １．ラチェットレンチのボトルネックは狭いスペースに
使えるために、そのヘッドを小さくしなければならな
い。しかも、弧形ギアが傾斜して配置してあるスプリン
グにより直接に取り付けられるので、ヘッドの壁厚を薄
くしなければならない。本発明の構造により、そのよう
な問題を解決する。本発明は動作の制御体１５の支持体
１５６を利用してスプリングを取り付けるので、スパナ
の本体のヘッドに穴を開ける必要がない。In summary, the improved structure of the high torque ratchet wrench according to the present invention ameliorates the drawbacks of the conventional ratchet wrench and composite spanner and has the following advantages. 1. The ratchet wrench bottleneck can be used in tight spaces, so its head must be small. In addition, the wall thickness of the head must be reduced because the arcuate gear is directly attached by the inclined spring. Such a problem is solved by the structure of the present invention. In the present invention, since the spring is attached using the support 156 of the operation control body 15, it is not necessary to make a hole in the head of the main body of the spanner.
【００１６】２．非常に小さいヘッドを持ち、狭くて小
さいスペースでも使える。弧形ギアと動作の制御体との
組合わせにより、保守のときに、汚物がはいっても強制
的に弧形ギアを退かせて汚物を排除でき、業務用の整備
保守に便利に使用できる。 ３．本発明によりコンパクトな構造が達成でき、更にそ
の製造について、凹穴、円弧部などの加工、スプリング
と弧形ギアの取り付けはすべて、容易である。2. It has a very small head and can be used in small, small spaces. By the combination of the arc gear and the operation control body, it is possible to forcibly retreat the arc gear and remove the dirt during maintenance, even if dirt is present, so that it can be conveniently used for maintenance and maintenance for business use. 3. According to the present invention, a compact structure can be achieved. Further, for manufacturing the same, machining of a concave hole, an arc portion, etc., and installation of a spring and an arc gear are all easy.
【００１７】４．本発明による構造は非常に少ないパー
ツにより達成される。4. The structure according to the invention is achieved with very few parts.
【図１】本発明による高いトルクを持つラチェットレン
チの改良構造の分解図である。FIG. 1 is an exploded view of an improved structure of a ratchet wrench having a high torque according to the present invention.
【図２】本発明による高いトルクを持つラチェットレン
チの改良構造の斜視図である。FIG. 2 is a perspective view of an improved structure of a ratchet wrench having a high torque according to the present invention.
【図３】本発明による高いトルクを持つラチェットレン
チの改良構造の第一の動作説明図である。FIG. 3 is a first operation explanatory view of an improved structure of a ratchet wrench having a high torque according to the present invention.
【図４】本発明による高いトルクを持つラチェットレン
チの改良構造の第二の動作説明図である。FIG. 4 is a second operation explanatory view of the improved structure of the ratchet wrench having a high torque according to the present invention.
【図５】本発明による高いトルクを持つラチェットレン
チの改良構造の第三の動作説明図である。FIG. 5 is a third operation explanatory view of the improved structure of the ratchet wrench having a high torque according to the present invention.
【図６】従来のラチェットレンチの斜視図である。FIG. 6 is a perspective view of a conventional ratchet wrench.
【図７】従来の複合式スパナの斜視図である。FIG. 7 is a perspective view of a conventional compound spanner.
１ ラチェットレンチの本体 １０ ヘッド １１ 把っ手 １２ 放置スペース １３ 凹んだ円弧部 １３１ 切欠部 １４ 弧形ギア １４１ 凸柱 １５ 動作の制御体 １５１，１５２ 凸体 １５３，１５４ 翼形板 １５５ フック １５３１，１５４１ 摺動面 １５６ 支持柱 １６ 圧縮スプリング ２０ 環状ギア ２１ ラチェット歯 ４０ スパナ ４１ 方向の変更ボタン DESCRIPTION OF SYMBOLS 1 Main body of ratchet wrench 10 Head 11 Handle 12 Leaving space 13 Concave arc part 131 Notch part 14 Arc-shaped gear 141 Convex column 15 Operation control body 151, 152 Convex body 153, 154 Airfoil plate 155 Hook 1531, 1541 Sliding surface 156 Support column 16 Compression spring 20 Ring gear 21 Ratchet tooth 40 Spanner 41 Direction change button
Claims (3)
ト型のリングスパナであって、該ヘッド部分は、 ハンドルに接続した円弧部が画成された放置スペース
と、 該 放置スペース内に受容され、外周部に複数の歯を有す
る環状ギアと、 前記 円弧部に設けられ、前記環状ギアの歯と係合する第
一の側に画成された複数の歯を含み、第二の側は弧形と
された弧形ギアと、 前記 円弧部に設けられ、前記円弧部を画成する壁に取り
付けられる制御体と、 前記 弧形ギアを前記制御体から遠ざけるように付勢する
ために前記制御体と前記弧形ギアとの間に設けられたス
プリングとからなり、前記制御体はその長手方向に実質
的に垂直な面で長手方向の中間部分から外向きに延在す
る一対の翼形板を有する、高いトルクを持つラチェット
型リングスパナ。1. A ratchet-type ring spanner comprising a handle and a head portion, wherein the head portion has a left space in which an arc portion connected to the handle is defined .
When, it is received in the left space, an annular gear <br/> Ru to have a plurality of teeth on an outer peripheral portion, provided on said arcuate portion, image a first side of the teeth engage with the annular gear A plurality of teeth formed, the second side is arcuate
And an arc-shaped gear that is provided on the circular arc portion, taken up in the walls defining the arcuate portion
A control member to be attached, becomes the arcuate gear and a spring provided between the control member and the arcuate gear to bias as away from the control member, the control member is a longitudinal direction thereof a pair of wing-shaped plates extending outwardly in a substantially vertical plane from an intermediate portion of the length-side direction, the ratchet having a high torque
Type ring spanner .
画成された切欠部を含み、制御体は前記切欠部に嵌めら
れるフックを含む請求項１に記載の高いトルクを持つラ
チェット型リングスパナ。2. A wall defining an arc portion includes a notch defined in a central portion thereof, and a control body is fitted in said notch.
2. The high torque ratcheting ring spanner of claim 1 including a hook.
その末端に、フックが設けられ、前記凸体及び前記フッ
クにより、切欠部に取り付けられる請求項１記載の高い
トルクを持つラチェット型リングスパナ。The tip of 3. A system Gokarada, convex bodies are provided two,
At its end, a hook is provided, by the convex body and the fluoride <br/> click, ratchet-type ring spanner with a high torque of claim 1, wherein attached to the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8179562A JP3001811B2 (en) | 1996-07-09 | 1996-07-09 | Improved ratchet wrench structure with high torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8179562A JP3001811B2 (en) | 1996-07-09 | 1996-07-09 | Improved ratchet wrench structure with high torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1015837A JPH1015837A (en) | 1998-01-20 |
| JP3001811B2 true JP3001811B2 (en) | 2000-01-24 |
Family
ID=16067909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8179562A Expired - Lifetime JP3001811B2 (en) | 1996-07-09 | 1996-07-09 | Improved ratchet wrench structure with high torque |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3001811B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159110A4 (en) * | 2014-06-19 | 2018-03-07 | Hangzhou Great Star Tools Co., Ltd. | Thin two-way ratchet wrench |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040029512A (en) * | 2002-10-01 | 2004-04-08 | (주) 코웰메디 | Torque wrench for operating dental implant |
| TW201116371A (en) * | 2009-11-13 | 2011-05-16 | Metaltech Ind Co Ltd | Wrench |
| JP4994465B2 (en) * | 2010-01-29 | 2012-08-08 | 直伸 山下 | Angle adjustment bracket |
| CN109779266A (en) * | 2018-12-25 | 2019-05-21 | 上海建工集团股份有限公司 | A kind of tensioning equipment and its application method of supporting type anchorage |
-
1996
- 1996-07-09 JP JP8179562A patent/JP3001811B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159110A4 (en) * | 2014-06-19 | 2018-03-07 | Hangzhou Great Star Tools Co., Ltd. | Thin two-way ratchet wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1015837A (en) | 1998-01-20 |
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