JP2005177867A - Wrench fitting part structure - Google Patents

Wrench fitting part structure Download PDF

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JP2005177867A
JP2005177867A JP2003417607A JP2003417607A JP2005177867A JP 2005177867 A JP2005177867 A JP 2005177867A JP 2003417607 A JP2003417607 A JP 2003417607A JP 2003417607 A JP2003417607 A JP 2003417607A JP 2005177867 A JP2005177867 A JP 2005177867A
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nut
fitting portion
wrench
width
fitting
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Chikei Sha
智慶 謝
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Abstract

<P>PROBLEM TO BE SOLVED: To provide the improved structure of a wrench fitting part for preventing a slip in the screwing motion of a nut. <P>SOLUTION: A width between circular arc projecting faces 24 of the inner edge of the wrench fitting part 22 fitted to the nut is reduced, and the width between two circular arc projecting faces is made smaller than the width of an angular part storage opening recessed part 23 to form inwardly recessed shape. With the circular arc projecting faces structured to have inwardly recessed shape, two circular arc projecting faces are fitted to clamp the nut to be fitted to them in a position near the angular part. A contact fixing area with a nut face is thereby increased to prevent the occurrence of unnecessary idle turning in the screwing motion of the nut. This structure is therefore advantageous in use in a narrow space. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は一種の嵌合部の構造に関する。特に一種のレンチ本体をナットと螺設する時、レンチ本体の空転を低下させることができる嵌合部の構造に係る。   The present invention relates to a structure of a kind of fitting part. In particular, when a kind of wrench body is screwed to a nut, the invention relates to a structure of a fitting portion that can reduce idling of the wrench body.

手動工具産業は、既に成熟期に入っており、発展の余地が限られた産業であると言えるが、現在市販されている手工具の多くは構造、材質を換えることにより、使用者の使用時の快適性と実用性をより一層高めることができる。
レンチは使用範囲が極めて広範な工具であるが、レンチの嵌合部の構造の善し悪しは、螺合時の難易度とネジの取り外しに適用可能かどうかにかかって来る。
図１０が示す公知のレンチ嵌合部の構造は、複数個の間隔を開けて環状に設置する開口凹部及び円弧状の凸面により構成される。一般に嵌合部の収容開口凹部は多角形のナットのヘッドを収容し、ナットを螺動する時発生し易い角部の潰れを防止する。円弧凸面の機能は主に、ナットの面を支えることで、ナットを固定することである。
一般にナットの対角線は、角と角との間が最も長い。即ち、嵌合部の円弧凸面は両角接近位置の角に近くなればなるほど、レンチがナットを螺動する時に発生する不要な空転を防止することができる。
しかし図１０が示す嵌合部の構造において、円弧凸面の幅は収容開口凹部より大きいため、嵌合部をナットに嵌合する時、該円弧凸面は角から離れた面上にしか接触できない。しかも、嵌合部とナット本体の構造にいくらかの間隙空間を残してあるため、レンチを回転させる時、該嵌合部は本体とナット間の間隙及び円弧凸面の構造により、レンチが一定の角度まで空転後、円弧凸面は角に近い位置に固定され、初めて順調にナットを螺設することができるのである。 The manual tool industry is already in its mature stage and can be said to be an industry with limited room for development, but many of the hand tools currently on the market can be used by users by changing the structure and materials. Comfort and practicality can be further enhanced.
The wrench is a tool that has a very wide range of use, but the quality of the wrench's fitting part depends on the difficulty at the time of screwing and whether it can be applied to screw removal.
The structure of a known wrench fitting portion shown in FIG. 10 is configured by an opening concave portion and an arc-shaped convex surface that are installed in a ring shape with a plurality of intervals. In general, the accommodating opening recess of the fitting portion accommodates a polygonal nut head and prevents the corner portion from being crushed which is likely to occur when the nut is screwed. The function of the convex arc surface is mainly to fix the nut by supporting the surface of the nut.
In general, the diagonal of the nut is the longest between the corners. That is, the closer the arc convex surface of the fitting portion is to the corners of the two-angle approach positions, the more the unnecessary idling that occurs when the wrench screws the nut can be prevented.
However, in the structure of the fitting portion shown in FIG. 10, the width of the arc convex surface is larger than the accommodating opening concave portion, and therefore when the fitting portion is fitted to the nut, the arc convex surface can contact only the surface away from the corner. In addition, since some gap space is left in the structure of the fitting part and the nut body, when the wrench is rotated, the fitting part has a certain angle due to the gap between the body and the nut and the structure of the arc convex surface. After the idle rotation, the arc convex surface is fixed at a position close to the corner, and the nut can be screwed smoothly for the first time.

一般にナットが最も広範に使用されているのは、組立て用に用いる機械業界をおいてはないであろう。機械業界では組立ての過程において、しばしば狭い空間でナットを螺設する必要があるため、上記のようなナット螺動の過程において不要な空転角度を生じる嵌合部の構造は、ナットを螺動する確実な角度は相対的に狭くなってしまう。即ち、レンチは複数回の締結操作を必要とするようになるため、ナット螺動において時間の浪費である。
さらに、嵌合部の円弧凸面が収容開口凹部幅より狭い時、嵌合部は余分な空転を生じた後に初めて順調にナット角に近い位置において固定することができる。同時に、円弧凸面の幅が収容開口凹部より広い時には、嵌合部の12個の円弧凸面は、６個だけがナット角と接触固定されるため、ナットの接触面積が少なくなり、極めて容易にレンチのナットを螺動する操作力量が低下し、ナットの滑りなどの状況を生じる。
次に米国特許第5388486号が示す公知構造は、レンチ嵌合部の円弧凸面と円弧凸面間の間隔距離が同様に収容開口凹部の幅より大きい。このような形態のレンチ嵌合部の構造は、上記公知の嵌合部構造同様の欠点を持つ。即ち全体的に言えば、現在業界で使用されているレンチ嵌合部の構造は、すべて改良の必要がある。
米国特許第5388486号明細書 In general, nuts are most widely used in the machinery industry used for assembly. In the machine industry, it is often necessary to screw a nut in a narrow space during the assembly process. Therefore, the structure of the fitting portion that generates an unnecessary idling angle in the process of screwing the nut as described above is screwed on the nut. The certain angle is relatively narrow. That is, since the wrench requires a plurality of fastening operations, time is wasted in screwing the nut.
Furthermore, when the arcuate convex surface of the fitting portion is narrower than the width of the opening of the receiving opening, the fitting portion can be fixed smoothly at a position close to the nut angle only after excessive idling. At the same time, when the width of the arc convex surface is wider than the recess of the receiving opening, only six of the 12 arc convex surfaces of the fitting portion are fixed in contact with the nut corner, so the contact area of the nut is reduced, and the wrench is extremely easy. As a result, the amount of operating force for screwing the nut decreases, causing a situation such as slipping of the nut.
Next, in the known structure shown in US Pat. No. 5,388,486, the distance between the arc convex surface and the arc convex surface of the wrench fitting portion is also larger than the width of the accommodating opening concave portion. Such a structure of the wrench fitting portion has the same disadvantages as the known fitting portion structure. That is, generally speaking, the structure of the wrench fitting part currently used in the industry needs to be improved.
U.S. Pat.No. 5,388,486

上記公知構造の欠点を解決するため、本発明は嵌合部の構造の改良を課題とする。
本発明は嵌合部の円弧凸面と円弧凸面間の面の幅が収容開口凹部の幅より小さいため、二個の円弧凸面は内部に窪んだ形状を形成し、該二個の内部に窪んだ形状の円弧凸面により、該円弧凸面とナットの接触面積は増加し、ナット螺動時の滑りを防止することができ、不要な空転現象生じることはなくなる。
さらに本発明の嵌合部の二円弧凸面は内部に窪んだ形状を呈するため、該嵌合部の円弧凸面とナットの完全な固定をもたらし、ナットの螺動過程における滑りを防止する効果を達成することができる。 In order to solve the drawbacks of the known structure, the present invention has an object to improve the structure of the fitting portion.
In the present invention, since the width of the surface between the arc convex surface of the fitting portion and the arc convex surface is smaller than the width of the concave portion of the accommodation opening, the two arc convex surfaces form a concave shape inside, and the two concave portions are recessed inside the two Due to the arc-shaped convex surface, the contact area between the arc-shaped convex surface and the nut is increased, and slipping when the nut is screwed can be prevented, so that no unnecessary idling phenomenon occurs.
Further, since the two arc convex surfaces of the fitting portion of the present invention have a concave shape inside, the arc convex surface of the fitting portion and the nut are completely fixed, and the effect of preventing the slip in the screwing process of the nut is achieved. can do.

上記課題を解決するため、本発明は下記の嵌合部の構造を提供する。
それはレンチ本体、歯車部品を含む。
該レンチ本体はハンドルを設置し、該ハンドルには少なくとも一端にヘッドを設置する。該ヘッド底縁には嵌合リングを嵌合する係合部を設置する。さらに該ヘッド中央部には収容空間を形成し、該収容空間には該歯車部品を収容、設置する。しかも該ヘッドと該ハンドル間には孔部を設置し、該孔部は該ヘッドの収容空間部分と相互に貫通する。該孔部は係合ブロック、バネ、螺固体により構成する係合構造を設置する。
該歯車部品外縁には該係合構造と相互にかみ合う歯車部を形成し、内縁にはナットを嵌合可能な嵌合部を形成する。該嵌合部は複数の間隔を開けて環状に設置され、外側に向けて伸びる収容開口凹部、及び複数の間隔を開けて環状に設置され内部へとへこむ円弧凸面により構成される。 In order to solve the above problems, the present invention provides the following structure of the fitting portion.
It includes a wrench body and gear parts.
The wrench body is provided with a handle, and the handle is provided with a head at least at one end. An engaging portion for fitting a fitting ring is provided on the bottom edge of the head. Further, a housing space is formed in the central portion of the head, and the gear component is housed and installed in the housing space. In addition, a hole is provided between the head and the handle, and the hole penetrates the accommodation space portion of the head. The hole is provided with an engagement structure constituted by an engagement block, a spring, and a screw solid.
A gear portion that meshes with the engagement structure is formed on the outer edge of the gear part, and a fitting portion that can be fitted with a nut is formed on the inner edge. The fitting portion is configured by an accommodation opening concave portion that is installed in a ring shape with a plurality of intervals and extends outward, and a circular arc convex surface that is provided in a ring shape with a plurality of intervals and is recessed inward.

上記のように、本発明はナットに嵌合する嵌合部内縁の円弧凸面と円弧凸面間の幅を縮小し、二個の円弧凸面間の幅を収容開口凹部の幅より小さくし、内部に窪んだ形状を形成することにより、ナット面との接触固定面積を増やし、ナット螺動時の不要な空転の発生を防止する。こうして、狭い空間での使用に有利とし、同時に、螺動力量を増加し、ナットの滑りを防止することができる。     As described above, the present invention reduces the width between the arc convex surface and the arc convex surface of the inner edge of the fitting portion that fits into the nut, makes the width between the two arc convex surfaces smaller than the width of the accommodating opening concave portion, By forming the concave shape, the contact fixing area with the nut surface is increased, and unnecessary idling when the nut is screwed is prevented. In this way, it is advantageous for use in a narrow space, and at the same time, the amount of screw power can be increased and slipping of the nut can be prevented.

図１、２、３が示すように、本発明はレンチ本体１０、歯車部品２０を含む。
該レンチ本体１０はハンドル１２を設け、該ハンドル１２には少なくとも一端にヘッド１４を設ける。該ヘッド１４底縁には嵌合リング１７を嵌合する係合部１５を設ける。さらに該ヘッド１４中央部には収容空間１６を形成し、該収容空間１６には該歯車部品２０を収容、設置する。しかも該ヘッド１４と該ハンドル１２間には孔部１８を設け、該孔部１８は該ヘッド１４の収容空間１６部分と相互に貫通する。該孔部１８は係合ブロック３１、バネ３２、螺固体３３により構成する係合構造３０を設置する。
該歯車部品２０外縁には該係合構造３０と相互にかみ合う歯車部２１を形成し、内縁にはナットを嵌合可能な嵌合部２２を形成する。該嵌合部２２は複数の間隔を開けて環状に設けられ、外側に向けて伸びる収容開口凹部２３、及び複数の間隔を開けて環状に配置され、内部へとへこむ円弧凸面２４により構成される。 As shown in FIGS. 1, 2, and 3, the present invention includes a wrench body 10 and a gear part 20.
The wrench body 10 is provided with a handle 12, and the handle 12 is provided with a head 14 at least at one end. At the bottom edge of the head 14, an engaging portion 15 for fitting the fitting ring 17 is provided. Further, a housing space 16 is formed in the central portion of the head 14, and the gear component 20 is housed and installed in the housing space 16. In addition, a hole 18 is provided between the head 14 and the handle 12, and the hole 18 penetrates the housing space 16 portion of the head 14. The hole 18 is provided with an engagement structure 30 constituted by an engagement block 31, a spring 32, and a screw solid 33.
A gear portion 21 that meshes with the engagement structure 30 is formed on the outer edge of the gear component 20, and a fitting portion 22 that can be fitted with a nut is formed on the inner edge. The fitting portion 22 is provided in a ring shape with a plurality of intervals, and includes an accommodation opening recess 23 extending outward, and a circular convex surface 24 that is arranged in a ring shape with a plurality of intervals and recessed into the inside. .

本発明の主要な特徴は、該レンチ本体１０とナット４０が相互に嵌合する嵌合部２２の構造にある。図５が示すように、本発明の円弧凸面２４間の幅は該収容開口凹部２３の間隔距離よりわずかに大きい。言い換えれば、本発明は両側面が該収容開口凹部２３に向って内部に収束する円弧凸面２４の構造により、該円弧凸面２４の幅(Ｗ)は、該収容開口凹部２３の開口凹部（開口凹部とは即ち二つの円弧凸面間に形成される内凹状部）の間の幅(Ｌ)よりも大きく、その結果、円弧凸面２４間の間隔が狭くなっている。
このように、該嵌合２３にナット４０を嵌合する時、該ナット４０と相互に接触固定する両側の円弧凸面２４間は内凹状を呈し、該円弧凸面２４を該ナット４０の角４２に近い位置で接触させる。よって、該ナット４０を螺動する時、該円弧凸面２４は、該ナット４０の各々の角部に近い位置で挟む様式で相互に接触固定し、該レンチ本体１０に不要な空転を生じさせることはないため、狭い空間での使用に有利である。 The main feature of the present invention lies in the structure of the fitting portion 22 in which the wrench body 10 and the nut 40 are fitted to each other. As shown in FIG. 5, the width between the arcuate convex surfaces 24 of the present invention is slightly larger than the distance between the accommodation opening recesses 23. In other words, according to the present invention, the width (W) of the arcuate convex surface 24 is such that the both sides of the arcuate convex surface 24 converge toward the inside of the accommodating opening recess 23. That is, it is larger than the width (L) between the inner concave portions formed between the two arc convex surfaces, and as a result, the interval between the arc convex surfaces 24 is narrowed.
As described above, when the nut 40 is fitted to the fitting 23, the arc convex surfaces 24 on both sides that are in contact with and fixed to the nut 40 have an inner concave shape, and the arc convex surface 24 is formed at the corner 42 of the nut 40. Touch in close proximity. Therefore, when the nut 40 is screwed, the arcuate convex surfaces 24 are fixed in contact with each other in a manner of being sandwiched at positions close to the respective corners of the nut 40 to cause unnecessary idling of the wrench body 10. Therefore, it is advantageous for use in a narrow space.

さらに、該ナット４０と角部両側で相互に接触固定しあう円弧凸面２４は内凹状を呈するため、該レンチ本体１０は不要な空転を避けることができる以外に、内凹状を呈する円弧凸面２４により、該ナット４０を螺動する過程において、該嵌合部２２内の12個の円弧凸面２４はみな、該ナット４０の面４１と相互に接触固定する。こうして、該レンチ本体１０が該ナット４０を螺動する力は最良の効果を達成する。同時に、該ナット４０との接触固定面積の増加により、該ナット４０螺動時に発生する滑りを防止する効果を達成する。
本発明の円弧凸面２４が達成する該ナット４０の滑り防止効果とは、該円弧凸面２４の幅と該収容開口凹部２３の間の幅が1.2(Ｗ)：１(Ｌ)である時(図５参照)、該円弧凸面２４間の幅が該収容開口凹部２３より小さい構造を利用し、該嵌合部２２内に設ける12個の円弧凸面２４と該ナット４０面４１は完全に接触固定される。こうして、該ナット４０との接触面積を増加させることにより、該ナット４０の滑りを防止するものである。 Further, since the arc convex surface 24 that contacts and fixes the nut 40 and both sides of the corner portion has an inner concave shape, the wrench body 10 can avoid unnecessary idling, and the arc convex surface 24 having an inner concave shape can prevent In the process of screwing the nut 40, all the twelve circular arc convex surfaces 24 in the fitting portion 22 are fixed in contact with the surface 41 of the nut 40. Thus, the force with which the wrench body 10 screws the nut 40 achieves the best effect. At the same time, by increasing the contact fixing area with the nut 40, the effect of preventing slippage occurring when the nut 40 is screwed is achieved.
The anti-slip effect of the nut 40 achieved by the arc convex surface 24 of the present invention is that when the width between the arc convex surface 24 and the accommodating opening recess 23 is 1.2 (W): 1 (L) (FIG. 5), using the structure in which the width between the circular arc convex surfaces 24 is smaller than the accommodating opening concave portion 23, the twelve arc convex surfaces 24 provided in the fitting portion 22 and the nut 40 surface 41 are completely contacted and fixed. The Thus, by increasing the contact area with the nut 40, the nut 40 is prevented from slipping.

また図６が示すように、本発明の嵌合部２２の第二実施例では、その嵌合部２２の構造は、ソケット５０に利用することもできる。該ソケット５０上端には嵌設部５１を設置し、下端内縁には該レンチ本体１０嵌合部２２と同様の構造の嵌合部５２を設ける。
該ソケット５０の嵌設部５１中央は穿孔５３が貫通し、外縁には該歯車部品２０の嵌合部２２構造に対応する収容開口凹部５４、及び円弧凸面５５を設置する。こうして、該ソケット５０は該レンチ本体１０の嵌合部２２と相互に嵌合され(図７参照)、さらに該ソケット５０下端の嵌合部５２を利用し該ナット４０に嵌合し、上記実施例と同様の螺動効果を達成することができる。 Moreover, as FIG. 6 shows, in the 2nd Example of the fitting part 22 of this invention, the structure of the fitting part 22 can also be utilized for the socket 50. FIG. A fitting portion 51 is provided at the upper end of the socket 50, and a fitting portion 52 having the same structure as the fitting portion 22 of the wrench body 10 is provided at the inner edge of the lower end.
A perforation 53 penetrates through the center of the fitting portion 51 of the socket 50, and an accommodation opening concave portion 54 and an arc convex surface 55 corresponding to the structure of the fitting portion 22 of the gear part 20 are installed on the outer edge. Thus, the socket 50 is fitted to the fitting portion 22 of the wrench body 10 (see FIG. 7), and is further fitted to the nut 40 using the fitting portion 52 at the lower end of the socket 50. A screw effect similar to the example can be achieved.

さらに図８が示すように、該ソケット５０上端には外縁に収容開口凹部５４及び円弧凸面５５を具えた嵌設部５１を設置する。内縁には同様に穿孔５３を設置し、下端内縁には六角形の螺動部５６を形成する。
また図９が示すように、該ソケット５０一端には一般のDヘッドレンチ(図示なし)を嵌合可能な穿孔５３を設置し、反対端内縁には同様に上記実施例と同様の嵌合部５２を設置する。このような異なる状態の組合せ構造によっても、上記実施例と同様の効果を達成することができる。 Further, as shown in FIG. 8, a fitting portion 51 having an accommodation opening concave portion 54 and an arc convex surface 55 at the outer edge is installed at the upper end of the socket 50. Similarly, a perforation 53 is provided on the inner edge, and a hexagonal screw portion 56 is formed on the inner edge of the lower end.
Further, as shown in FIG. 9, a perforation 53 capable of fitting a general D head wrench (not shown) is provided at one end of the socket 50, and a fitting portion similar to the above embodiment is similarly provided at the inner edge of the opposite end. 52 is installed. Even with such a combination structure in different states, the same effect as in the above embodiment can be achieved.

本発明嵌合部の構造の分解指示図である。It is a decomposition | disassembly instruction | indication figure of the structure of this invention fitting part. 本発明嵌合部の構造の外観指示図である。It is an external appearance instruction | indication of the structure of this invention fitting part. 本発明嵌合部の構造の断面指示図である。It is a section indication figure of the structure of the present invention fitting part. 本発明嵌合部の構造の嵌合部の局部拡大指示図である。It is a local expansion instruction | indication figure of the fitting part of this invention fitting part structure. 図４の細部拡大指示図である。FIG. 5 is a detail enlargement instruction diagram of FIG. 4. 本発明嵌合部の構造の第二実施例の外観指示図である。It is an external appearance instruction | indication of the 2nd Example of the structure of this invention fitting part. 本発明嵌合部の構造のソケットと第一実施例のレンチ本体の嵌設動作指示図である。It is a fitting operation | movement instruction | indication figure of the socket of the structure of this invention fitting part, and the wrench main body of a 1st Example. 本発明嵌合部の構造の別種の実施例の外観指示図である。It is an external appearance instruction | indication of another Example of the structure of this invention fitting part. 本発明嵌合部の構造のさらに別種の実施例の外観指示図である。It is an external appearance instruction | indication of another Example of the structure of this invention fitting part. 公知の嵌合部の構造のヘ平面指示図である。It is a plane direction view of the structure of a well-known fitting part.

符号の説明Explanation of symbols

１０ レンチ本体
１２ ハンドル
１４ ヘッド
１５ 係合部
１６ 収容空間
１７ 嵌合リング
１８ 孔部
２０ 歯車部品
２１ 歯車部
２２ 嵌合部
２３ 収容開口凹部
２４ 円弧凸面
３０ 係合構造
３１ 係合ブロック
３２ バネ
３３ 螺固体
４０ ナット
４１ 面
４２ 角
５０ ソケット
５１ 嵌設部
５２ 嵌合部
５３ 穿孔
５４ 収容開口凹部
５５ 円弧凸面
５６ 螺動部 DESCRIPTION OF SYMBOLS 10 Wrench main body 12 Handle 14 Head 15 Engagement part 16 Accommodating space 17 Fitting ring 18 Hole part 20 Gear part 21 Gear part 22 Fitting part 23 Accommodating opening recessed part 24 Arc convex surface 30 Engaging structure 31 Engaging block 32 Spring 33 Screw Solid 40 Nut 41 Surface 42 Corner 50 Socket 51 Fitting portion 52 Fitting portion 53 Perforation 54 Recessing opening recess 55 Arc convex surface 56 Screwing portion

Claims (4)

ナットを締結するレンチであって、
レンチ本体には、手で握持するハンドルを設け、該ハンドルには少なくとも一端にナットを螺動する嵌合部を設け、該嵌合部内縁には該ナットの面と相互に接触固定する複数の円弧凸面、及びナットの角を収容する複数の収容開口凹部を設けて、
該ナット面と相互に接触固定する円弧凸面について、収容開口凹部間の幅と円弧凸面の幅との比を1：1.2としてなることを特徴とするレンチのナット嵌合部の構造。 A wrench for fastening a nut,
The wrench body is provided with a handle that is gripped by hand, the handle is provided with a fitting portion for screwing a nut at at least one end, and a plurality of members that are in contact with each other and fixed to the nut surface on the inner edge of the fitting portion A plurality of receiving opening recesses for receiving the arc convex surface and the corner of the nut,
A structure of a nut fitting portion of a wrench characterized in that the ratio of the width between the recesses of the housing opening and the width of the arc convex surface is 1: 1. レンチのソケットであって、
該レンチのソケットは、一端にレンチ嵌合部を嵌設する嵌設部を設け、該嵌設部内縁には穿孔を設置し、外縁には複数の円弧凸面と収容開口凹部を形成し、
該嵌設部の反対端にはナットを螺動可能な嵌合部を設けて、該嵌合部内縁には同様に円弧凸面と収容開口凹部を形成し、
該ソケットの嵌設部と嵌合部の該収容開口凹部間の幅と円弧凸面の幅との比を1：1.2としてなることを特徴とするレンチのソケット嵌合部の構造。 A wrench socket,
The socket of the wrench is provided with a fitting portion for fitting a wrench fitting portion at one end, a perforation is installed on the inner edge of the fitting portion, and a plurality of arc convex surfaces and a housing opening concave portion are formed on the outer edge,
A fitting portion capable of screwing a nut is provided at the opposite end of the fitting portion, and an arc convex surface and a housing opening concave portion are similarly formed on the inner edge of the fitting portion,
A structure of a socket fitting portion of a wrench, characterized in that a ratio of a width between the fitting opening portion of the socket and the concave portion of the accommodation opening of the fitting portion and a width of the arc convex surface is 1: 1.2. 前記ソケット一端の複数の円弧凸面と収容開口凹部を具えた嵌合部は六角形の螺動部としてなることができることを特徴とする請求項２記載のレンチのソケット嵌合部の構造。   3. The structure of a socket fitting portion for a wrench according to claim 2, wherein the fitting portion having a plurality of arc-shaped convex surfaces at one end of the socket and a receiving opening concave portion can be a hexagonal screw portion. レンチのソケットであって、
該ソケットは一端に穿孔を設置し、反対端にナットを螺動する嵌合部を設置し、該嵌合部内縁には複数個の円弧凸面と収容開口凹部を形成し、
該ソケットの嵌合部の該収容開口凹部間の幅と円弧凸面の幅との比を1：1.2としてなることを特徴とするレンチのソケット嵌合部の構造。

A wrench socket,
The socket is provided with a perforation at one end and a fitting portion for screwing a nut at the opposite end, and a plurality of arc convex surfaces and a housing opening concave portion are formed on the inner edge of the fitting portion,
A structure of a socket fitting portion of a wrench, characterized in that a ratio of a width between the recesses of the accommodation opening of the fitting portion of the socket and a width of the arc convex surface is 1: 1.2.

JP2003417607A 2003-12-16 2003-12-16 Wrench fitting part structure Pending JP2005177867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003417607A JP2005177867A (en) 2003-12-16 2003-12-16 Wrench fitting part structure

Publications (1)

Publication Number Publication Date
JP2005177867A true JP2005177867A (en) 2005-07-07

Family

ID=34780057

Family Applications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD992387S1 (en) 2017-12-13 2023-07-18 Apex Brands, Inc. Extractor socket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD992387S1 (en) 2017-12-13 2023-07-18 Apex Brands, Inc. Extractor socket

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