JP3173059U - Engagement jaw shape of open end wrench - Google Patents
Engagement jaw shape of open end wrench Download PDFInfo
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- JP3173059U JP3173059U JP2011006513U JP2011006513U JP3173059U JP 3173059 U JP3173059 U JP 3173059U JP 2011006513 U JP2011006513 U JP 2011006513U JP 2011006513 U JP2011006513 U JP 2011006513U JP 3173059 U JP3173059 U JP 3173059U
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Abstract
【課題】ボルト・ナット等の締め付けに際し、ラチェットレンチの如く、レンチの係合部を完全に分離させないオープンエンドレンチの係合顎部の形状を提供する。
【解決手段】先端が開放された２つの顎部１１，１２を有し、これら顎部１１，１２が６角ボルト頭部５０又は６角ナット等の被締着部材の対向する２つの側面部を挟持できるオープンエンドレンチである。両顎部１１，１２の内周面には、被締着部材の６つの角部の内の３つの角部５０ｋと適合する３つの角部適合部１５を有する。下方の顎部１２の先端部１２ｔとその根本部側の角部適合部１５との間に窪み部１７を形成した。上方の顎部１１の先端部１１ｔの内側内周面に切欠湾曲部１６を設けた。６角ボルト頭部５０の端面と接合する鍔部１８を顎部１１，１２の少なくとも一方の端面に設けることもできる。
【選択図】図１An object of the present invention is to provide a shape of an engaging jaw portion of an open end wrench that does not completely separate an engaging portion of a wrench such as a ratchet wrench when tightening bolts and nuts.
SOLUTION: Two jaw portions 11 and 12 having open ends are provided, and these jaw portions 11 and 12 are opposed to two side portions of a fastening member such as a hexagon bolt head 50 or a hexagon nut. An open-end wrench that can hold On the inner peripheral surfaces of both jaws 11 and 12, there are three corner matching portions 15 that match three corners 50k of the six corners of the fastening member. A depression 17 was formed between the tip 12t of the lower jaw 12 and the corner fitting portion 15 on the base side. A notch bending portion 16 was provided on the inner inner peripheral surface of the tip portion 11t of the upper jaw portion 11. It is also possible to provide the flange portion 18 to be joined to the end surface of the hexagon bolt head portion 50 on at least one end surface of the jaw portions 11 and 12.
[Selection] Figure 1
Description
本考案は、オープンエンドレンチ又はスパナの係合顎部の形状の改良に関するものである。 The present invention relates to an improvement in the shape of an engaging jaw of an open end wrench or spanner.
従来より、ボルトやナット等の被締着部材を回転させることによって、締め付けて固定し、或いは緩めて外す作業を行うための工具としてレンチやスパナがよく知られている。
これらレンチの内で、その先端部が開放されて、横方向から被締着部材にこのレンチを嵌め込んで使用できるオープンエンドレンチ或いはスパナがある。
2. Description of the Related Art Conventionally, a wrench or a spanner is well known as a tool for performing an operation of tightening and fixing or loosening and removing by rotating a member to be fastened such as a bolt or a nut.
Among these wrench, there is an open end wrench or a spanner that can be used by opening the tip of the wrench and inserting the wrench into the fastening member from the lateral direction.
このオープンエンドレンチ（以下単に「レンチ」という。）は、その先端の開放部の両側にそれぞれ顎部を有し、これら２つの顎部によって例えば６角ボルト頭部の対向する２つの側面部を挟持し且つこれら２つの側面部の間に位置する３つの角部と適合させて、かかる６角ボルト頭部を回転させることができるものである。 This open-end wrench (hereinafter simply referred to as “wrench”) has jaw portions on both sides of the open portion at the tip thereof, and these two jaw portions allow, for example, two opposing side portions of a hexagonal bolt head to be opposed to each other. The hexagonal bolt head can be rotated while being fitted and fitted with three corners located between these two side portions.
下記特許文献１に記載の「片長顎式スパナとその使用方法」においては、６角ボルト等の回転固着具（被締着部材）を回転するために、その回転固着具の頭部との嵌合を確実に、且つ容易に行えるようにし、ロボット等の自動機械においても適用できるものを提供することを目的としている。
その構成は、ボルト等の被回転固着具の対抗する２つの嵌合面を二股に分かれた顎部の嵌合面の間に挟んで被回転固着具を回動するスパナにおいて、このスパナの一方の嵌合面の長手方向距離を被回転固着具の嵌合面の長手方向距離より長くし、他方は前記一方より更に長く形成し、長い方の顎部先端を固着具に当接して被回転固着具との間で相対的に回転移動し、両嵌合面を一致させた後、同顎部の嵌合面を案内面としてスパナを所定方向に抵抗なく差し入れ、長短両顎部の嵌合面の間に、前記固着具の嵌合面を確実に嵌合させるようにしたものである。
In the “one-long jaw spanner and its method of use” described in Patent Document 1 below, in order to rotate a rotary fixing tool (fastened member) such as a hexagonal bolt, the fitting of the rotary fixing tool with the head is performed. An object of the present invention is to provide an apparatus that can be applied to an automatic machine such as a robot.
The structure of the spanner is such that a rotating fixture is rotated by sandwiching two fitting surfaces of a rotating fixture such as a bolt between the fitting surfaces of a bifurcated jaw. The longitudinal distance of the mating surface is made longer than the longitudinal distance of the mating surface of the rotation fixing tool, the other is made longer than the one, and the tip of the longer jaw is brought into contact with the fixing tool and rotated. After rotating relative to the fixture and matching the mating surfaces, the spanner is inserted in the specified direction without resistance using the mating surface of the jaw as a guide surface, and the long and short jaws are mated. The fitting surface of the fixing tool is securely fitted between the surfaces.
特許文献２は、本願出願人が先に提案した「レンチ」に係るものであるが、ボルトやナット等の被締着部材を締め付け又は緩める際に、かかる被締着部材との係合状態を確実に保持できるようにすることを目的としたものである。
その構成は、ボルト頭部やナット等の被締着部材の６角柱の側面部に係合する係合部に、被締着部材の端面（上面部又は底面部）に接合する鍔部を設けたものである。
この鍔部をボルト頭部の上面部又はナットの上面部又は底面部に接合した状態で係合させることができるために、この鍔部の存在により被締着部材とレンチとの係合が外れてしまうことが防止され、極めて良好に両者の係合が維持され、締め付け又は緩める作業が容易となるものである。
Patent Document 2 relates to a “wrench” previously proposed by the applicant of the present application. When tightening or loosening a fastening member such as a bolt or a nut, the state of engagement with the fastening member is disclosed. It is intended to ensure that it can be held.
The configuration is such that a hook portion that joins the end surface (upper surface portion or bottom surface portion) of the fastening member is provided in the engaging portion that engages with the side surface portion of the hexagonal column of the fastening member such as a bolt head or a nut. It is a thing.
Since this flange can be engaged with the top surface of the bolt head or the top or bottom surface of the nut, the engagement between the fastening member and the wrench is disengaged due to the presence of this flange. The engagement between the two is maintained very well, and the work of tightening or loosening is facilitated.
本考案は上記のような各種レンチの改良に関するものであって、被締着部材との係合を良好とすることに加えて、例えば、被締着部材である６角ナットを締め付けるに際して、レンチは一旦ナットに係合させ、その対向する２つの側面部を挟持して右回転させる。
その後更に締め付けるために右回転をさせるのであるが、その際に一度両者の係合を分離して左回転させ、異なる６角ナットの側面部と係合させなければならない。この両者の係合の分離に際して、その分離を完全に行わずに、一方の顎部のナット側面部への係合又は係止をそのままにした状態で、レンチを元の左方向に回転できるようにすることが本考案の課題である。
The present invention relates to an improvement of the various wrench as described above. In addition to making the engagement with the fastened member good, for example, when tightening a hexagon nut as a fastened member, the wrench Is once engaged with the nut, and sandwiched between the two opposing side surface portions and rotated clockwise.
After that, it is rotated rightward for further tightening. At that time, it is necessary to separate the engagement between the two and rotate them counterclockwise to engage with the side surfaces of different hexagonal nuts. At the time of separation of the engagement between the two, the wrench can be rotated to the original left direction with the separation or engagement of the one jaw portion with the nut side surface portion being left as it is. It is a problem of the present invention to make.
換言すれば、ラチェットレンチにおいては、両顎部はナットの側面部に係合したままの状態でそのラチェット機構により、例えば元の左方向に空回り回動させて、他方の締め付け右方向回転のみ力が加えられる構造となっているが、本考案においては、このラチェット機構を備えずに、このラチェットレンチと同様の作動手順で、締め付け又は緩める作業を行えるようにすることをその課題としているのである。 In other words, in the ratchet wrench, both jaws remain engaged with the side surfaces of the nut, and the ratchet mechanism is used, for example, to rotate idly to the original left direction, and to force only the other tightening right direction rotation. However, in the present invention, it is an object to be able to perform tightening or loosening operation without using the ratchet mechanism in the same operation procedure as this ratchet wrench. .
上記課題を解決するために、本考案の第１のものは、先端が開放された２つの顎部を有し、これら顎部が６角ボルト頭部又はナット等の被締着部材の対向する２つの側面部を挟持できるオープンエンドレンチにおいて、前記両顎部の内周面には、被締着部材の前記対向する２つの側面部の角部と適合する角部適合部をそれぞれ有し、更に一方の顎部の先端部と根本部側の角部適合部との間に、窪み部を形成し、他方の顎部の先端内周面に切欠湾曲部を形成したことを特徴とするオープンエンドレンチの係合顎部形状である。 In order to solve the above-mentioned problem, the first one of the present invention has two jaw portions with open ends, and these jaw portions are opposed to a fastening member such as a hexagonal bolt head or a nut. In the open end wrench capable of sandwiching two side portions, the inner peripheral surfaces of both jaw portions each have corner matching portions that match the corner portions of the two facing side portions of the fastening member, Furthermore, an open is characterized in that a recess is formed between the tip of one jaw and the corner fitting part on the base side, and a notch curve is formed on the inner peripheral surface of the tip of the other jaw. It is an engagement jaw part shape of an end wrench.
本考案の第２のものは、上記第１の発明において、前記両顎部の内周面に、被締着部材の角部と適合する３つの角部適合部を形成し、それぞれの角部適合部の間に弧状の窪みをそれぞれ設けたことを特徴とするオープンエンドレンチの係合顎部形状である。 According to a second aspect of the present invention, in the first invention, three corner matching portions that match the corners of the fastening members are formed on the inner peripheral surfaces of the both jaw portions, and each corner portion is formed. It is an engagement jaw part shape of the open end wrench characterized by providing arcuate depressions between the fitting parts.
本考案の第３のものは、上記第１又は第２のものにおいて、被締着部材の端面と接合する鍔部を前記両顎部の少なくとも一方の端面に設けたことを特徴とするオープンエンドレンチの係合顎部形状である。 According to a third aspect of the present invention, there is provided the open end according to the first or second aspect, wherein a flange portion to be joined to the end surface of the fastening member is provided on at least one end surface of the both jaw portions. It is an engaging jaw part shape of a wrench.
本考案の第１のものにおいては、ボルトやナット等の被締着部材を締め付ける際には、両顎部をこの被締着部材の側面部に横方向から適合させ、即ち、両顎部の内周面に設けられている少なくとも２つの角部適合部を被締着部材の２つの対向する側面部の角部に適合させることによって締め付け作業（右回転）を１動作行うことができる。
次に更に締め付け作業を行う際には、両顎部を横方向に少し移動させて、一方の顎部の側の角部適合部を被締着部材の角部から離隔させると、被締着部材の当該角部が窪み部の位置に来ることとなる。
In the first device of the present invention, when fastening a fastening member such as a bolt or a nut, both jaws are adapted to the side part of the fastening member from the lateral direction. By fitting at least two corner matching portions provided on the inner peripheral surface to corners of two opposing side surfaces of the member to be fastened, one tightening operation (right rotation) can be performed.
Next, when further tightening work is performed, if both jaws are moved slightly in the lateral direction and the corner fitting part on the side of one jaw is separated from the corner of the fastening member, The said corner | angular part of a member will come to the position of a hollow part.
この状態のままで、他方の顎部の先端部の切欠湾曲部の湾曲面を支点（支点は湾曲面に沿って先端部に向かって移動する）として、レンチの腕部を締め付け方向とは逆の左回転をさせて行き、一方の顎部の先端部を被締着部材の側面部乃至角部を乗り越えさせることができる。
というのも、この窪み部が被締着部材の角部の逃げ場となって、レンチの一方の顎部の切欠湾曲部の湾曲面を支点として左回転をするに際して、被締着部材の当該角部が当該逃げ場（窪み部）の内部で回動でき、更に他方の顎部の先端が被締着部材の当該角部を乗り越えることができるからである。
In this state, with the curved surface of the notch curved portion at the tip of the other jaw as a fulcrum (the fulcrum moves toward the tip along the curved surface), the wrench arm is opposite to the tightening direction. The tip of one jaw can be moved over the side or corner of the fastening member.
This is because when this recess is used as a refuge for the corner of the fastening member, and the counterclockwise rotation is performed with the curved surface of the notched curved portion of one jaw of the wrench as the fulcrum, This is because the portion can be rotated inside the escape area (recessed portion), and the tip of the other jaw portion can get over the corner portion of the fastening member.
次に、左回転のまま一方の顎部の切欠湾曲部の湾曲面を被締着部材の側面部に沿うように摺動させて行き、次の被締着部材の角部に両顎部を係合させる。その際に、他方の顎部の先端部も被締着部材の側面部に沿うように摺動させて左回転させ、次の被締着部材の角部に係合させるのである。
これを繰り返すことによって、レンチの両顎部を被締着部材から完全に分離させることなく、つまり離脱させることなく、その一部が被締着部材の側面部に係止（接触）した状態で、ラチェットレンチのように、右回転と左回転とを繰り返して右回転の際には締め付けを行い、左回転の際には空回りを行い、締め付け作業を行うことができることとなるのである。
Next, with the left rotation, slide the curved surface of the notched curved part of one jaw part along the side part of the fastening member, and place both jaw parts at the corners of the next fastening member. Engage. At that time, the distal end portion of the other jaw portion is also slid along the side surface portion of the fastening member and rotated counterclockwise to be engaged with the corner portion of the next fastening member.
By repeating this, the jaws of the wrench are not completely separated from the fastening member, that is, without being separated from each other, in a state where a part thereof is locked (contacted) with the side part of the fastening member. As in the case of a ratchet wrench, it is possible to perform the tightening work by repeating the clockwise rotation and the counterclockwise rotation to perform tightening when rotating to the right and idle when rotating left.
本考案の第２のものにおいては、上記第１の発明の効果に加えて、両顎部の内周面に３つの被締着部材の角部に適合する角部適合部を３つ形成し、これら角部適合部の間のそれぞれに弧状の窪みを形成しているために、本考案に係るレンチを例えば左方向に空回り回転させる際に、被締着部材の角部がその弧状の窪みに沿って良好に案内され得るという効果を発揮できる。 In the second device of the present invention, in addition to the effect of the first invention, three corner matching portions that match the corners of the three fastening members are formed on the inner peripheral surface of both jaw portions. Since the arc-shaped depressions are formed between the corner fitting portions, when the wrench according to the present invention is rotated, for example, to the left, the corners of the fastening members are arc-shaped depressions. The effect that it can be guided well along can be exhibited.
本考案の第３のものにおいては、上記第１又は第２の発明に加えて、両顎部の少なくとも一方の端面に鍔部を設けているために、この鍔部がボルトの頭部上面部或いはナットの一方端面部に接合し、レンチを空回りさせる際のガイド面と成り、更に良好にこの空回り作業を容易に行わせることができるのである。
ここで、レンチの端面というのは、６角ナットや６角ボルト頭部の被締着部材の６角柱の端面と対応する面を意味し、両顎部の内周面と直交する両側の側面を意味する。
In the third aspect of the present invention, in addition to the first or second invention described above, since the collar portion is provided on at least one end surface of the both jaw portions, the collar portion is the upper surface portion of the head portion of the bolt. Alternatively, it is joined to one end surface of the nut and becomes a guide surface when the wrench is idling, and this idling operation can be easily performed more satisfactorily.
Here, the end surface of the wrench means the surface corresponding to the end surface of the hexagonal column of the fastening member of the hexagon nut or hexagon bolt head, and the side surfaces on both sides orthogonal to the inner peripheral surface of both jaws Means.
以下、添付の図面と共に、本考案の実施形態について説明する。
図１は、本考案に係るレンチの一実施形態の要部平面図であって、その（Ａ）が締め付け可能状態を示し、その（Ｂ）が空回りの左回転する状態を示している。
本考案に係るオープンエンドレンチ１０は、先端側に２つの顎部１１、１２が設けられて、６角ボルト頭部や６角ナット等の被締着部材の側面部と係合する係合部を有し、この係合部の根本側には柄部１３が形成されたものから成る。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a plan view of a main part of an embodiment of a wrench according to the present invention, in which (A) shows a tightenable state, and (B) shows a state of rotating counterclockwise.
An open-end wrench 10 according to the present invention is provided with two jaw portions 11 and 12 on the tip side, and engages with a side portion of a fastening member such as a hexagon bolt head or a hexagon nut. The handle portion 13 is formed on the base side of the engaging portion.
顎部は、図中上方の顎部１１が下方の顎部１２よりもその延長長さが短く形成されているが、それぞれの顎部１１、１２の長さは、自由に設定することができ、図のように上方を短く形成することも、又は同一長さに形成することもでき、若しくは、下方の顎部１２の方を上方の顎部１１よりも短く形成することもできる。 The upper jaw portion 11 in the figure is formed so that the extension length of the upper jaw portion 11 is shorter than that of the lower jaw portion 12, but the length of each jaw portion 11 and 12 can be freely set. As shown in the figure, the upper part can be formed shorter or the same length, or the lower jaw part 12 can be formed shorter than the upper jaw part 11.
本考案においては、この上方の顎部１１の先端部１１ｔの内側の内周面に切欠湾曲部１６を形成している点が一つの特徴部分となっている。
これにより、レンチ１０を少し右矢印方向Ｄに移動させた後に、この切欠湾曲部１６の湾曲面に沿って、レンチ１０を左回転することによって下方の顎部１２の先端部１２ｔが被締着部材であるボルト頭部５０の角部５０ｋと干渉せずに、つまり衝突せずに、乗り越えることができるように構成したのである。
In the present invention, one feature is that the notched curved portion 16 is formed on the inner peripheral surface of the tip portion 11t of the upper jaw portion 11.
As a result, after the wrench 10 is moved slightly in the right arrow direction D, the tip 12t of the lower jaw 12 is fastened by rotating the wrench 10 counterclockwise along the curved surface of the notch curved portion 16. It is configured to be able to get over without interfering with the corners 50k of the bolt head 50 as a member, that is, without colliding.
この実施形態では、顎部１１と顎部１２の内周面部に３つの角部適合部１５、１５、１５を設け、ボルト頭部５０の３つの角部５０ｋと適切に適合するように構成している。
しかし、この角部適合部１５は、図中上方と下方の２箇所のみであってもよいものである。これら２つの角部適合部１５、１５によって適切にボルト頭部５０を回転させることができるからである。
In this embodiment, three corner fitting portions 15, 15, 15 are provided on the inner peripheral surface portions of the jaw portion 11 and the jaw portion 12, and the three corner portions 50 k of the bolt head portion 50 are appropriately fitted. ing.
However, the corner conforming portion 15 may be provided at only two locations, upper and lower in the drawing. This is because the bolt head 50 can be appropriately rotated by the two corner matching parts 15 and 15.
本考案においては、そのもう一つの特徴部分である窪み部１７を下方の顎部１２の先端部分１２ｔの内側で、根本側の角部適合部１５との間に設けている。
この窪み部１７の存在によって、後に説明する係合部の空回りである左回転を良好に行うことができることとなる。
In the present invention, the recess 17 which is another characteristic part is provided inside the distal end portion 12t of the lower jaw 12 and between the corner fitting portion 15 on the root side.
Due to the presence of the hollow portion 17, it is possible to satisfactorily perform the left rotation that is the idle rotation of the engaging portion described later.
更に、本実施形態においては、係合部内の角部適合部１５、１５、１５の間の内周面に
それぞれ弧状の窪み１５ｒ、１５ｒを設けている。この弧状の窪み１５ｒにボルト頭部５０の角部５０ｋが接触した際に、良好に摺動回転しうるように構成したものである。
Furthermore, in the present embodiment, arc-shaped depressions 15r and 15r are provided on the inner peripheral surface between the corner matching parts 15, 15, and 15 in the engaging part, respectively. When the corner portion 50k of the bolt head portion 50 comes into contact with the arcuate recess 15r, the arc-shaped recess portion 15r can be configured to slide and rotate satisfactorily.
次に、この実施形態の使用方法について説明する。
先ず（Ａ）図に示した通り、ボルト頭部５０の周側面部に横方向からレンチ１０を適合させ、レンチ１０の両顎部１１、１２の内周面である係合部をボルト頭部５０の周側面部に適合させる。
完全に適合させると、係合部の内周面の３つの角部適合部１５は、適切にボルト頭部５０の角部５０ｋ、５０ｋ、５０ｋと適合する。この状態でレンチ１０の柄部１３を右回転させることによりボルトが締め付けられる。
Next, a method of using this embodiment will be described.
First, as shown in FIG. 1A, the wrench 10 is fitted from the lateral direction to the peripheral side surface portion of the bolt head 50, and the engaging portion which is the inner peripheral surface of both jaw portions 11 and 12 of the wrench 10 is connected to the bolt head. Fit to 50 peripheral sides.
When perfectly matched, the three corner fitting portions 15 on the inner peripheral surface of the engaging portion are properly fitted with the corner portions 50k, 50k, 50k of the bolt head 50. In this state, the bolt is tightened by rotating the handle 13 of the wrench 10 to the right.
適宜右回転させた後、今度はレンチ１０の柄部１３を左回転させるために、（Ａ）図の矢印方向Ｄに示した右横方向に少しレンチ１０を移動させる。
この移動させる距離は、顎部１２の根本部側の角部適合部１５とボルト頭部５０の角部１５ｋとの係合を解除し、その角部１５ｋを窪み部１７の部位に望ませる状態に至る距離である。
この左回転に際して、下方の顎部１２の先端部１２ｔの内側の内周面に設けた窪み部１７が存在していることにより、ボルト頭部５０の角部５０ｋが顎部１２の内周面と干渉せずに、良好に左回転が行われるのである。
After appropriately rotating to the right, the wrench 10 is slightly moved in the right lateral direction indicated by the arrow direction D in FIG.
The distance to be moved is a state in which the engagement between the corner portion matching portion 15 on the base portion side of the jaw portion 12 and the corner portion 15k of the bolt head portion 50 is released, and the corner portion 15k is desired to be a portion of the recess portion 17. It is the distance to reach.
At the time of this counterclockwise rotation, the hollow portion 17 provided on the inner peripheral surface of the tip portion 12t of the lower jaw portion 12 is present, so that the corner portion 50k of the bolt head 50 is the inner peripheral surface of the jaw portion 12. Thus, the left rotation can be performed satisfactorily without interference.
このようにして、左回転の空回りが可能となった状態で、上方の顎部１１の先端部１１ｔの内周面に設けた切欠湾曲部１６の湾曲面に沿って、この湾曲面を支点として左回転させつつ、この湾曲面１６をボルト頭部５０の側面部に沿うように摺動させて行くのである（（Ｂ）図参照。）。
そして、ボルト頭部５０の異なる次の角部５０ｋ、５０ｋ、５０ｋに係合部が適合し、締め付け右回転スタンバイ状態となり、次の締め付け動作が行われる。
In this way, in a state where idling of the left rotation is possible, this curved surface is used as a fulcrum along the curved surface of the notch curved portion 16 provided on the inner peripheral surface of the distal end portion 11t of the upper jaw portion 11. The curved surface 16 is slid along the side surface of the bolt head 50 while rotating counterclockwise (see FIG. 5B).
Then, the engaging portions are adapted to the next different corner portions 50k, 50k, 50k of the bolt head 50, the tightening clockwise rotation standby state is set, and the next tightening operation is performed.
以上の動作又は操作を繰り返すことによって、ボルトは本考案に係るレンチ１０によって締め付け作業が適切に行われるのである。
この締め付け作業中、本考案に係るレンチ１０においては、被締着部材であるボルト頭部やナットから完全に分離、離脱されることはなく、被締着部材の側面部に少なくともレンチ１０の係合部の顎部１１の先端部１１ｔの内側の切欠湾曲部１６の湾曲面が常に接触した状態を維持し、この湾曲面が被締着部材の側面部に沿うように左回転空回りを案内してくれるのである。
By repeating the above operation or operation, the bolt is appropriately tightened by the wrench 10 according to the present invention.
During this tightening operation, the wrench 10 according to the present invention is not completely separated or detached from the bolt head or nut that is the member to be fastened, and at least the wrench 10 is engaged with the side surface of the member to be fastened. The curved surface of the notch curved portion 16 inside the distal end portion 11t of the joint jaw portion 11 is always kept in contact, and guides the counterclockwise rotation so that the curved surface follows the side surface portion of the fastening member. He / she will.
以上、本考案においては、オープンエンドレンチ又はスパナの係合部の顎部形状にその特徴があり、両顎部により係合部を形成し、ボルトやナット等の被締着部材の側面部の少なくとも２つの角部と適合する角部適合部を設けて被締着部材を掴持することができ、一方の顎部の先端部の内側の内周面に窪み部を設けたこと、そして、他方の顎部の先端内周面部に切欠湾曲部を設けたことを特徴とし、係合部の一部である切欠湾曲部の湾曲面を被締着部材の周側面に常に接触させた状態で、空回りさせることが可能となり、いわばラチェットレンチのごとき動作又は操作にて締め付け作業を可能としたものである。 As described above, in the present invention, the shape of the jaw portion of the engaging portion of the open-end wrench or spanner has the feature, the engaging portion is formed by both jaw portions, and the side portion of the fastening member such as a bolt or nut is formed. The fastening member can be gripped by providing a corner fitting portion that matches at least two corners, and a recess is provided on the inner peripheral surface of the inner side of the tip of one jaw; and The notch curved portion is provided on the inner peripheral surface of the tip of the other jaw, and the curved surface of the notched curved portion which is a part of the engaging portion is always in contact with the peripheral side surface of the fastening member. In other words, it can be idled, so to speak, it can be tightened by operation or operation like a ratchet wrench.
以上、実施形態について説明したが、本考案においてはその形態を以下の通り種々設計変更することが可能である。
本考案に係るレンチの両顎部の間隔等、係合部のサイズは適宜設計変更することができる。また、係合部の外周部の外形形状や柄部の長さ、デザイン等は適宜設定変更することができる。
Although the embodiment has been described above, in the present invention, it is possible to make various design changes as follows.
The size of the engaging portion, such as the interval between both jaw portions of the wrench according to the present invention, can be appropriately changed in design. Further, the outer shape of the outer peripheral portion of the engaging portion, the length of the handle portion, the design, and the like can be appropriately set and changed.
それぞれの顎部の長さは、既に述べたように、両者の長さを同一に設計することも、一方を他方よりも長く形成することも自由である。
というのも、本考案においては、一方の顎部の先端部内周面に切欠湾曲部を形成しているために、顎部の長さの特定は自由に行うことができ、それ故、必要に応じて、それぞれの顎部の長さを設定することができる。
両顎部の内周面においては、角部適合部を少なくとも２つ設ければよいが、上記実施形態のように３つ設けるのも自由である。
窪み部は、上記第１実施形態では円弧形状に設けたが、その窪み部の形状も、必要に応じて適宜設計変更することができる。
As described above, the lengths of the respective jaws can be designed so that both lengths are the same, or one can be formed longer than the other.
This is because, in the present invention, since the notch curved portion is formed on the inner peripheral surface of the tip of one jaw, the length of the jaw can be freely specified, and therefore is necessary. Accordingly, the length of each jaw can be set.
On the inner peripheral surfaces of both jaws, it is only necessary to provide at least two corner fitting parts, but it is also possible to provide three corners as in the above embodiment.
In the first embodiment, the dent is provided in an arc shape. However, the shape of the dent can be appropriately changed as necessary.
更に、本考案では、両顎部の端面に鍔部を設けることもできる。
この鍔部の一例を図１（Ａ）の符号１８で示しているが、この鍔部１８は、上方の顎部１１の内周面の側の一方の端面側に設けているが、上方の顎部から下方の顎部の端面の全体にこの鍔部を形成して実施することも可能である。
このような鍔部を設けることにより、レンチの係合部を空回りさせる際に、レンチのこの鍔部が被締着部材の端面と接合したままの状態となり、被締着部材から分離、離脱されることをより良く防止することができるのである。
Furthermore, in this invention, a collar part can also be provided in the end surface of both jaw parts.
An example of this collar part is shown by the code | symbol 18 of FIG. 1 (A), but this collar part 18 is provided in one end surface side of the inner peripheral surface side of the upper jaw part 11, It is also possible to carry out by forming this buttocks on the entire end face of the lower jaw from the jaw.
By providing such a flange, when the engaging portion of the wrench is idled, the flange of the wrench remains in contact with the end surface of the member to be fastened, and is separated and detached from the member to be fastened. Can be better prevented.
尚、本考案においては、被締着部材を緩める際には、上記締め付け動作と逆の動作を行えばよく、或いは、レンチの一方の切欠湾曲部が設けられた顎部と窪み部が設けられた顎部とを逆に被取付部材に取り付けて、締め付け動作と逆の動作を行えばよい。 In the present invention, when loosening the member to be fastened, an operation opposite to the above-described tightening operation may be performed, or a jaw portion and a hollow portion provided with one notch curved portion of the wrench are provided. The opposite jaw portion may be attached to the attachment member and the operation opposite to the tightening operation may be performed.
以上、本考案は、レンチの顎部の係合部形状を改良することにより、いわばラチェットレンチと同様の動作又は操作により被締着部材を締め付け又は緩めることができることとなるのである。 As described above, according to the present invention, the fastening member can be tightened or loosened by an operation or operation similar to that of the ratchet wrench by improving the shape of the engaging portion of the jaw portion of the wrench.
１０ オープンエンドレンチ
１１、１２ 顎部
１１ｔ、１２ｔ 先端部
１３ 柄部
１５ 角部適合部
１６ 切欠湾曲部
１７ 窪み部
１８ 鍔部
５０ ボルト頭部
５０ｋ 角部（ボルト頭部の）
DESCRIPTION OF SYMBOLS 10 Open end wrench 11, 12 Jaw part 11t, 12t Tip part 13 Handle part 15 Corner part fitting part 16 Notch curved part 17 Recessed part 18 Gutter part 50 Bolt head 50k Corner part (bolt head part)
Claims (3)
前記両顎部(11, 12)の内周面には、被締着部材の前記対向する２つの側面部の角部と適合する角部適合部(15, 15)をそれぞれ有し、
更に一方の顎部(12)の先端部(12t)と根本部側の角部適合部(15)との間に、窪み部(17)を形成し、
他方の顎部(11)の先端内周面に切欠湾曲部(16)を形成したことを特徴とするオープンエンドレンチの係合顎部形状。 It has two jaw parts (11, 12) with open ends, and these jaw parts (11, 12) can sandwich two opposing side parts of a fastening member such as a hexagon bolt head or a nut. In open end wrench,
The inner peripheral surfaces of both jaws (11, 12) have corner fitting parts (15, 15) that match the corners of the two opposite side faces of the fastening member,
Further, a recess (17) is formed between the tip (12t) of one jaw (12) and the corner fitting portion (15) on the root side,
An engaging jaw part shape of an open-end wrench, characterized in that a notch curved part (16) is formed on the inner peripheral surface of the tip of the other jaw part (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011006513U JP3173059U (en) | 2011-11-04 | 2011-11-04 | Engagement jaw shape of open end wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011006513U JP3173059U (en) | 2011-11-04 | 2011-11-04 | Engagement jaw shape of open end wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3173059U true JP3173059U (en) | 2012-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011006513U Expired - Fee Related JP3173059U (en) | 2011-11-04 | 2011-11-04 | Engagement jaw shape of open end wrench |
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| Country | Link |
|---|---|
| JP (1) | JP3173059U (en) |
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