JP3213561U

JP3213561U - Open spanner

Info

Publication number: JP3213561U
Application number: JP2017004072U
Authority: JP
Inventors: 嘉冠廖
Original assignee: 穩陞工業股▲ふん▼有限公司
Priority date: 2017-09-05
Filing date: 2017-09-05
Publication date: 2017-11-16
Anticipated expiration: 2027-09-05

Abstract

【課題】素材原料を節約し、高い回転トルクを維持するオープンスパナを提供する。【解決手段】扁平な持ち手１１及び扁平な駆動部１２からなり、駆動部１２は、螺合部品を嵌合する上下が貫通した嵌合口１２０を設ける。駆動部１２上下面は第一層１２と第二層１２２及びそれから延長した第三層１４１と第四層１４３が順に重畳して連続した側辺面を構成し、第一層１２及び第二層１２２は、嵌合口１２０の口縁に沿ってＵ字型に囲む。第二層１２２の最上面の面積は第一層１２の最上面面積よりも小さく、第二層１２２最上面の面積は第一層１２の最上面面積より小さく、第四層１４３の最上面の面積は第三層１４１の最上面面積より小さい。【選択図】図１An open spanner that saves raw materials and maintains a high rotational torque is provided. SOLUTION: A flat handle 11 and a flat drive unit 12 are provided, and the drive unit 12 is provided with a fitting port 120 through which the upper and lower sides for fitting a screwed part are passed. The upper and lower surfaces of the drive unit 12 constitute side surfaces in which the first layer 12 and the second layer 122 and the third layer 141 and the fourth layer 143 extending from the first layer 12 and the fourth layer 143 are sequentially overlapped to form the first layer 12 and the second layer. 122 encloses in a U shape along the edge of the fitting port 120. The area of the uppermost surface of the second layer 122 is smaller than the area of the uppermost surface of the first layer 12. The area of the uppermost surface of the second layer 122 is smaller than the area of the uppermost surface of the first layer 12. The area is smaller than the top surface area of the third layer 141. [Selection] Figure 1

Description

本考案は、オープンスパナに関するもので、特に素材原料を節約し、更に回転トルクを下げないスパナである。 The present invention relates to an open spanner, and in particular, is a spanner that saves raw materials and does not lower rotational torque.

公知のオープンスパナは、図２２に示すとおり、本体６０に持ち手６１及び駆動部６２を設置する。駆動部６２厚みは、持ち手６１より厚い。 As shown in FIG. 22, a known open spanner has a handle 61 and a drive unit 62 installed on a main body 60. The drive unit 62 is thicker than the handle 61.

他の公知のオープンスパナは、図２３に示すとおり、本体７０は、持ち手７１及び駆動部７２を設置する。駆動部７２上には第一層７２１及び第二層７２２を設ける。第一層７２１と持ち手７１は同じ厚みである。第二層７２２は駆動部７２の開口端を囲んで設置する。第二層７２２は第一層７２１から険しく突出する。本体７０構造は、一般に業界で言うところのドイツDIN規格３１１３号である。 In another known open spanner, as shown in FIG. 23, the main body 70 has a handle 71 and a drive unit 72. A first layer 721 and a second layer 722 are provided on the driving unit 72. The first layer 721 and the handle 71 have the same thickness. The second layer 722 is installed so as to surround the opening end of the driving unit 72. The second layer 722 protrudes steeply from the first layer 721. The structure of the main body 70 is the German DIN standard 3113 generally referred to in the industry.

特開２００２−２３９９３１号公報JP 2002-239931 A

解決しようとする問題点として、図２２は駆動部６２が厚く、重量が重いため、操作に負担がかかり、且つ材料費がかかりすぎる点である。
また、図２３は駆動部７２には第一層７２１及び厚みのある第二層７２２を設置し、全体の体積は前述の第二駆動部６２よりも少ないが、良好な回転トルクは得にくい点である。 As a problem to be solved, FIG. 22 is that the drive unit 62 is thick and heavy, and thus the operation is burdened and the material cost is excessive.
In FIG. 23, the driving unit 72 is provided with a first layer 721 and a thick second layer 722, and the total volume is smaller than that of the second driving unit 62 described above, but it is difficult to obtain good rotational torque. It is.

本考案は、扁平の持ち手及び扁平の駆動部の本体を含む。駆動部は、上下が貫通した嵌合口を凹設する。第二駆動部上下面はそれぞれ層が重畳した第一層と第二層が一体で層が重畳した第三層と第四層が一体となる。第一層及び第二層は、嵌合口の口縁に沿ってＵ字型に囲む。第二層の最上面の面積は第一層の最上面面積よりも小さい。第一層及び第二層中段から持ち手までそれぞれ延長するのは第三層及び第四層である。第二層最上面の面積は第一層の最上面面積より小さい。第四層の最上面の面積は第三層の最上面面積より小さいことを最も主要な特徴とする。 The present invention includes a flat handle and a main body of a flat drive unit. The drive part has a fitting opening recessed vertically. On the upper and lower surfaces of the second drive unit, the first layer and the second layer on which the layers are superimposed are integrated, and the third layer and the fourth layer on which the layers are superimposed are integrated. The first layer and the second layer are enclosed in a U shape along the edge of the fitting port. The area of the uppermost surface of the second layer is smaller than the uppermost area of the first layer. The third layer and the fourth layer extend from the middle layer of the first layer and the second layer to the handle, respectively. The area of the uppermost surface of the second layer is smaller than the area of the uppermost surface of the first layer. The main feature is that the area of the uppermost surface of the fourth layer is smaller than the area of the uppermost surface of the third layer.

本考案のオープンスパナは、以下の効果を備える。 The open spanner of the present invention has the following effects.

駆動部１２は、第一層１２１、第二層１２３、第三層１４１及び第四層１４３を設置する。図２１に示す公知の第二駆動部６２と比較して重量が軽くなり、図２２に示す公知の第三駆動部７２と比較して良好な回転トルクを備える。 The drive unit 12 is provided with a first layer 121, a second layer 123, a third layer 141, and a fourth layer 143. The weight is lighter than that of the known second drive unit 62 shown in FIG. 21, and the rotation torque is better than that of the known third drive unit 72 shown in FIG.

ユーザーが螺合部品５０を回転する時、親指を側辺の第四層１４３にかけて押圧することにより、力をかけやすい。 When the user rotates the threaded component 50, it is easy to apply a force by pressing the thumb against the fourth layer 143 on the side.

嵌合口１２０に螺合部品５０を嵌合する時、螺合部品５０の高い位置での半分箇所を嵌合した場合でも、駆動部１２が螺合部品５０を回転した時，回転トルクは第二層１２３から第二最上面１４２まで伝達され、次に第四層１４３及び持ち手１１まで伝達される。 When the screw part 50 is fitted into the fitting port 120, even when the half part at the high position of the screw part 50 is fitted, the rotational torque is the second when the drive unit 12 rotates the screw part 50. It is transmitted from the layer 123 to the second uppermost surface 142 and then to the fourth layer 143 and the handle 11.

本考案オープンスパナ構造駆動部の立体図である。It is a three-dimensional view of the present invention open spanner structure driving unit. 本考案オープンスパナ構造駆動部の俯瞰図である。It is a bird's-eye view of this invention open spanner structure drive part. 図２のC-C箇所の断面図である。It is sectional drawing of CC location of FIG. 図２のD-D箇所の断面図である。FIG. 3 is a cross-sectional view taken along a line D-D in FIG. 2. 本考案オープンスパナ構造の俯瞰図である。It is an overhead view of this invention open spanner structure. 本考案オープンスパナ構造駆動部の側面図である。It is a side view of this invention open spanner structure drive part. 図６内のB-B箇所の断面図である。It is sectional drawing of the BB location in FIG. 本考案オープンスパナ構造最上面の断面図である。It is sectional drawing of the top surface of this invention open spanner structure. 本考案オープンスパナ構造と螺合部品が結合した俯瞰図である。It is the bird's-eye view which this invention open spanner structure and screwing parts couple | bonded. 図９のC-C箇所の断面図である。It is sectional drawing of CC location of FIG. 本考案オープンスパナ構造第二実施例の俯瞰図である。It is an overhead view of this invention open spanner structure 2nd Example. 本考案オープンスパナ構造第三実施例駆動部の俯瞰図である。It is a bird's-eye view of a drive part of the present invention open spanner structure third embodiment. 本考案オープンスパナ構造第四実施例駆動部の立体図である。It is a three-dimensional view of the drive unit of the fourth embodiment of the present invention open spanner structure. 本考案オープンスパナ構造第四実施例駆動部の俯瞰図である。It is an overhead view of a drive unit according to a fourth embodiment of the present invention open spanner structure. 図１４のA-A箇所の断面図である。It is sectional drawing of the AA part of FIG. 本考案オープンスパナ構造第四実施例駆動部の側面図である。It is a side view of a drive unit according to a fourth embodiment of the present invention open spanner structure. 図１６のB-B箇所の断面図である。It is sectional drawing of the BB location of FIG. 本考案オープンスパナ構造第四実施例最上面の断面図である。It is sectional drawing of the uppermost surface of 4th Example of this invention open spanner structure. 本考案オープンスパナ構造第四実施例と螺合部品が結合した俯瞰図である。It is a bird's-eye view which screwed parts couple | bonded with this invention open spanner structure 4th Example. 図１９のC-C箇所の断面図である。FIG. 20 is a cross-sectional view taken along the line CC in FIG. 19. 本考案第五実施例立体図である。It is a three-dimensional view of the fifth embodiment of the present invention. 公知のオープンスパナ構造の立体図である。It is a three-dimensional view of a known open spanner structure. 別の公知のオープンスパナ構造第の立体図である。FIG. 6 is a third perspective view of another known open spanner structure.

素材原料を節約し、回転トルクを下げないオープンスパナを提供することを本考案の目的とする。
それは扁平の持ち手及び扁平の駆動部を含む本体とする。駆動部は、上下が貫通した嵌合口を凹設する。第二駆動部上下面はそれぞれ層が重畳した第一層及び第二層、相互に重畳した第三層及び第四層を有する。第一層及び第二層は、嵌合口の口縁に沿ってＵ字型に囲んで形成する。第二層の最上面の面積は第一層の最上面面積よりも小さい。第一層及び第二層中段から持ち手までそれぞれ延びるのは第三層及び第四層である。第二層最上面の面積は第一層の最上面面積より小さい。第四層の最上面の面積は第三層の最上面面積より小さい。 It is an object of the present invention to provide an open spanner that saves raw materials and does not reduce rotational torque.
It is a body that includes a flat handle and a flat drive. The drive part has a fitting opening recessed vertically. The upper and lower surfaces of the second drive unit have a first layer and a second layer on which layers are superimposed, and a third layer and a fourth layer on which layers are superimposed. The first layer and the second layer are formed so as to be surrounded by a U shape along the edge of the fitting port. The area of the uppermost surface of the second layer is smaller than the uppermost area of the first layer. The third layer and the fourth layer extend from the middle layer of the first layer and the second layer to the handle, respectively. The area of the uppermost surface of the second layer is smaller than the area of the uppermost surface of the first layer. The area of the uppermost surface of the fourth layer is smaller than the area of the uppermost surface of the third layer.

図１に示すとおり、本考案オープンスパナは、本体１０を備え、本体１０は一体で且つ相対する水平面が扁平な持ち手１１及び扁平な駆動部１２を有する。
駆動部１２後端は、持ち手１１一端に接続する。駆動部１２前端は、ナットなどの螺合部品５０に嵌合する嵌合口１２０を凹設する。嵌合口１２０は駆動部１２上下扁平面部を貫通する。
駆動部１２上下面には、順に重畳して、嵌合口１２０の開口縁に沿ってＵ字型で囲む第一層１２１及び第二層１２３をそれぞれ突出して一体に成形する。
第一層１２１の中段箇所は持ち手１１まで延長して突出する。第二層１２３の最上面は、平坦な第一最上面１２２を形成する。第二層１２３底面は第一層１２１最上面に一体で重畳して形成する。第一層１２１底面は、前記駆動部１２の扁平面部に一体に重畳して形成する。第二層１２３の一側辺は、その底面から第一最上面１２２まで傾斜面を形成して延びる(図示例は斜平面に延び、第二層１２３の横断面側辺は線分とする)。
第二層１２３の第一最上面１２２の面積は第二層１２３底面面積より小さい。第二層１２３底面面積は第一層１２１最上面面積より小さい。
第一層１２１の持ち手１１まで延長する扁平最上面は第三層１４１を形成する。第二層１２３の持ち手１１まで延長する箇所は第三層１４１最上面の第四層１４３に重畳する。第三層１４１底面は持ち手１１の扁平面部に一体に重畳する。
第四層１４３最上面は平坦な第二最上面１４２である。第二層１２３の第一最上面１２２及びこの第二最上面１４２は同一平面を形成し、且つ連続したＹ字型の平面形を構成する。
第四層１４３側辺は底面から第二最上面１４２まで傾斜面を形成して延びる(図示例は凹アーク面延長であり、第四層１４３の横断面側辺形状は凹曲線とする)。第二最上面１４２面積は第四層１４３底面面積より小さい。第四層１４３底面面積は第三層１４１底面面積より小さい。 As shown in FIG. 1, the open wrench of the present invention includes a main body 10, and the main body 10 has a handle 11 and a flat drive unit 12 that are integral and have a flat opposite horizontal surface.
The rear end of the drive unit 12 is connected to one end of the handle 11. The front end of the drive unit 12 is recessed with a fitting port 120 that fits into a threaded component 50 such as a nut. The fitting port 120 penetrates the upper and lower flat portions of the drive unit 12.
A first layer 121 and a second layer 123 that are overlapped in order on the upper and lower surfaces of the drive unit 12 and surrounded by a U-shape along the opening edge of the fitting port 120 are projected and integrally formed.
The middle part of the first layer 121 extends to the handle 11 and protrudes. The top surface of the second layer 123 forms a flat first top surface 122. The bottom surface of the second layer 123 is formed integrally with the top surface of the first layer 121. The bottom surface of the first layer 121 is formed so as to be integrally overlapped with the flat surface portion of the driving unit 12. One side of the second layer 123 extends from the bottom surface to the first uppermost surface 122 by forming an inclined surface (in the illustrated example, it extends in an oblique plane, and the lateral side of the second layer 123 is a line segment). .
The area of the first top surface 122 of the second layer 123 is smaller than the bottom surface area of the second layer 123. The bottom surface area of the second layer 123 is smaller than the top surface area of the first layer 121.
The flat top surface extending to the handle 11 of the first layer 121 forms a third layer 141. The portion of the second layer 123 extending to the handle 11 overlaps the fourth layer 143 on the top surface of the third layer 141. The bottom surface of the third layer 141 is superimposed on the flat surface portion of the handle 11.
The uppermost surface of the fourth layer 143 is a flat second uppermost surface 142. The first uppermost surface 122 of the second layer 123 and the second uppermost surface 142 form the same plane and form a continuous Y-shaped planar shape.
The side of the fourth layer 143 extends to form an inclined surface from the bottom surface to the second uppermost surface 142 (the illustrated example is an extension of the concave arc surface, and the shape of the lateral side of the fourth layer 143 is a concave curve). The area of the second uppermost surface 142 is smaller than the area of the bottom surface of the fourth layer 143. The bottom surface area of the fourth layer 143 is smaller than the bottom surface area of the third layer 141.

図２に示すとおり、第二最上面１４２と第一最上面１２２の相互に接続する前端辺箇所の幅は、第一幅１４４であり、第二最上面１４２から持ち手１１前端まで延長した中段箇所の幅は第二幅１４５である。第一幅１４４は第二幅１４５よりも大きい。
第二最上面１４２から持ち手１１中段まで延びた後端辺は第一アーク１４６であり、第一アーク１４６の直径は上記第二幅１４５より小さい。第四層１４３底面の後端辺は第二アーク１４７であって、第二アーク１４７の円直径は、第一アーク１４６の円直径より大きい。第一アーク１４６と第二アーク１４７は同軸心である。 As shown in FIG. 2, the width of the front end side portion where the second uppermost surface 142 and the first uppermost surface 122 are connected to each other is the first width 144, and the middle stage extending from the second uppermost surface 142 to the front end of the handle 11. The width of the part is the second width 145. The first width 144 is larger than the second width 145.
The rear end extending from the second uppermost surface 142 to the middle stage of the handle 11 is the first arc 146, and the diameter of the first arc 146 is smaller than the second width 145. The rear end side of the bottom surface of the fourth layer 143 is the second arc 147, and the circular diameter of the second arc 147 is larger than the circular diameter of the first arc 146. The first arc 146 and the second arc 147 are coaxial.

図３及び図４に示すとおり、駆動部１２上下の最上面１２２の間隔、すなわち駆動部１２の厚さは第一距離３１である。第二層１２３の横断面の側辺は直線である。第四層１４３の横断面の側辺は、本体１０外に中心を有する凹曲線を形成する。 As shown in FIGS. 3 and 4, the distance between the upper and lower uppermost surfaces 122 of the drive unit 12, that is, the thickness of the drive unit 12 is the first distance 31. The side of the cross section of the second layer 123 is a straight line. The lateral sides of the fourth layer 143 form a concave curve having a center outside the main body 10.

図５に示すとおり、嵌合口１２０にはその底部中心を通過する中分線１２４及び持ち手１１の中央縦軸線１２６に平行な縦向線１２５を有し、中分線１２４と縦向線１２５は約１５度の夾角を有する。
嵌合口１２０底部は第一アーク面１２７であって、上記中分線１２４と縦向線１２５の交差点は第一アーク面１２７中心にある。
第一層１２１と持ち手１１は、第一アーク面１２７と相似であって同心の仮想の第二アーク面１２８と連続したアウトラインを形成する。
中分線１２４と中央縦軸線１２６の交差点は第二アーク面１２８中心にある。
縦向線１２５と中央縦軸線１２６との間に偏移距離３２を形成することにより、ユーザーはスパナの操作時に幅狭な箇所においても障害物にぶつかることなく、螺合部品５０の回転操作を達成する。
中央縦軸線１２６と第二アーク面１２８の交差点から第四層１４３底面までの最大距離は、第二距離３６である。第二距離３６の持ち手１１の長さ３７に対する比は１/２よりも小さい。第二距離３６と持ち手１１の長さ３７の比は１:３〜１:６であり、最良の比例は１:６である。 As shown in FIG. 5, the fitting port 120 has a middle dividing line 124 passing through the center of the bottom and a vertical line 125 parallel to the central longitudinal axis 126 of the handle 11, and the middle dividing line 124 and the vertical line 125. Has a depression angle of about 15 degrees.
The bottom of the fitting port 120 is the first arc surface 127, and the intersection of the middle dividing line 124 and the vertical line 125 is at the center of the first arc surface 127.
The first layer 121 and the handle 11 are similar to the first arc surface 127 and form a continuous outline with the concentric virtual second arc surface 128.
The intersection of the middle dividing line 124 and the central longitudinal axis 126 is at the center of the second arc surface 128.
By forming the deviation distance 32 between the vertical line 125 and the central vertical axis 126, the user can rotate the screwed part 50 without hitting an obstacle even in a narrow part when operating the spanner. Achieve.
The maximum distance from the intersection of the central longitudinal axis 126 and the second arc surface 128 to the bottom surface of the fourth layer 143 is the second distance 36. The ratio of the second distance 36 to the length 37 of the handle 11 is less than 1/2. The ratio between the second distance 36 and the length 37 of the handle 11 is 1: 3 to 1: 6, and the best proportion is 1: 6.

図６から図８に示すとおり，第一最上面１２２は、第一層１２１から突出する。第一最上面１２２の面積４２は、第一層１２１の最上面４１の面積(第一最上面１２２の面積４２は第一層１２１の最上面４１面積の１/３〜２/３である)よりも小さい。
最上面４１から第一最上面１２２までの間は、層が重畳して形成された第二層１２３である。第二層１２３の横断面の側辺は直線もしくは凸曲線である。
第二最上面１４２の面積４４は第三層１４１の最上面４３面積より小さい。最上面４３から第二最上面１４２までの面積４４間は、層が重畳して形成された第四層１４３である。第四層１４３の横断面の側辺は直線もしくは凹曲線である。 As shown in FIGS. 6 to 8, the first uppermost surface 122 protrudes from the first layer 121. The area 42 of the first uppermost surface 122 is the area of the uppermost surface 41 of the first layer 121 (the area 42 of the first uppermost surface 122 is 1/3 to 2/3 of the area of the uppermost surface 41 of the first layer 121). Smaller than.
Between the top surface 41 and the first top surface 122 is a second layer 123 formed by overlapping layers. The side of the cross section of the second layer 123 is a straight line or a convex curve.
The area 44 of the second uppermost surface 142 is smaller than the area of the uppermost surface 43 of the third layer 141. Between the area 44 from the uppermost surface 43 to the second uppermost surface 142 is a fourth layer 143 formed by overlapping layers. The side of the cross section of the fourth layer 143 is a straight line or a concave curve.

図９に示すとおり，駆動部１２によって螺合部品５０を回転させる時、親指を傾斜面もしくは凹曲面を構成する第四層１４３に当てがって力を入れやすい。 As shown in FIG. 9, when the screwing component 50 is rotated by the drive unit 12, it is easy to apply a force by placing the thumb on the fourth layer 143 that forms an inclined surface or a concave curved surface.

図１０に示すとおり，駆動部１２によって螺合部品５０を回転させる時、周囲の他の部品が干渉するために、嵌合口１２０はただ螺合部品５０を半分の高さもしくは半分に至らない高さで螺合する場合でも、回転トルクは第二層１２３から第四層１４３及び持ち手１１に伝達される。
駆動部１２は第一層１２１、第二層１２３、第三層１４１及び第四層１４３を有し、駆動部１２は公知図２１に示す第二駆動部６２と比較して重量が軽くなり、且つ図２２に示す第三駆動部７２と比較して良好な回転トルクを作用する。 As shown in FIG. 10, when the screwing part 50 is rotated by the drive unit 12, other fittings interfere with each other, so that the fitting port 120 merely raises the screwing part 50 to a half height or a height that does not reach half. Even in the case of screwing, the rotational torque is transmitted from the second layer 123 to the fourth layer 143 and the handle 11.
The drive unit 12 includes a first layer 121, a second layer 123, a third layer 141, and a fourth layer 143. The drive unit 12 is lighter than the second drive unit 62 shown in FIG. In addition, a good rotational torque is applied as compared with the third drive unit 72 shown in FIG.

図１１に示すとおり，第二最上面１４２は持ち手１１中段まで延長され、且つ中央縦軸線１２６に沿って延長する。第一幅１４４及び第二幅１４５は同じである。第二距離３６は第三距離３７の１/２よりも小さいか、もしくは同じである。 As shown in FIG. 11, the second uppermost surface 142 extends to the middle stage of the handle 11 and extends along the central longitudinal axis 126. The first width 144 and the second width 145 are the same. The second distance 36 is less than or equal to 1/2 of the third distance 37.

図１２に示すとおり，第二最上面１４２は持ち手１１一側に延長され、第二最上面１４２の中軸線と持ち手１１の中央縦軸線１２６間には間隔３８が形成される。 As shown in FIG. 12, the second uppermost surface 142 extends to one side of the handle 11, and a space 38 is formed between the center axis of the second uppermost surface 142 and the central longitudinal axis 126 of the handle 11.

図１３から図２０に示すとおり，本体１０は第一層１２１、最上面１２２及び第二層１２３を設置するだけで、図１に示すような第三層１４１、第二最上面１４２及び第四層１４３を設置しない。 As shown in FIGS. 13 to 20, the main body 10 is simply provided with the first layer 121, the uppermost surface 122, and the second layer 123, and the third layer 141, the second uppermost surface 142, and the fourth layer as shown in FIG. Layer 143 is not installed.

図２１に示すとおり，本体１０は、第一層１２１及び第二層１２３を設置するだけで、第三層１４１及び第四層１４３を設置せず、層が重畳して延びる箇所は持ち手１１まで延長しない。 As shown in FIG. 21, the main body 10 is simply provided with the first layer 121 and the second layer 123, and is not provided with the third layer 141 and the fourth layer 143. Do not extend until.

図１に示すとおり,第一層１２１及び第三層１４１底面から最上面の側辺までは、それぞれ丸面取りもしくは角面取りを形成する。第二層１２３底面から最上面１２２まで、及び第四層１４３底面から最上面１４２の側辺までも同じく丸面取りもしくは角面取りを備える。振動加工は面取りを有する。 As shown in FIG. 1, round chamfering or square chamfering is formed from the bottom surfaces of the first layer 121 and the third layer 141 to the uppermost side. Similarly, round chamfering or chamfering is also provided from the bottom surface of the second layer 123 to the top surface 122 and from the bottom surface of the fourth layer 143 to the side of the top surface 142. Vibration machining has chamfering.

１０本体
１１持ち手
１２駆動部
１２０嵌合口
１２１第一層
１２２第一最上面
１２３第二層
１２４中分線
１２５縦向線
１２６中央縦軸線
１２７第一アーク面
１２８第二アーク面
１４１第三層
１４２第二最上面
１４３第四層
１４４第一幅
１４５第二幅
１４６第一アーク
１４７第二アーク
３１第一距離
３２偏移距離
３６第二距離
３７長さ
３８間隔
４１最上面
４２面積
４３最上面
４４面積
５０螺合部品
６０本体
６１持ち手
６２駆動部
７０本体
７１持ち手
７２駆動部
７２１第一層
７２２第二層 10 Body 11 Handle
12 driving part 120 fitting port 121 first layer 122 first uppermost surface 123 second layer 124 middle dividing line 125 longitudinal direction line 126 central longitudinal axis line
127 First arc surface 128 Second arc surface 141 Third layer 142 Second uppermost surface 143 Fourth layer 144 First width 145 Second width 146 First arc 147 Second arc 31 First distance 32 Deviation distance
36 Second distance 37 Length
38 Spacing 41 Top surface 42 Area 43 Top surface
44 Area 50 Threaded parts 60 Body
61 handle 62 drive unit 70 main body
71 handle 72 drive unit 721 first layer 722 second layer

Claims

In the open spanner,
A main body and a handle and a drive unit integrally connected to the main body;
A U-shaped fitting port for fitting a screwed part is provided at the front end of the driving unit as an opening penetrating the upper and lower surfaces of the driving unit,
The first and second layers are overlapped in order on the upper and lower flat surface portions of the drive unit to form a continuous surface with the side sides integrated and provided along the fitting port opening rim,
The uppermost surface of the second layer is a flat first uppermost surface, and the bottom surface of the second layer is formed integrally with the uppermost surface of the first layer,
The first layer is superimposed on the flat surface portion of the drive unit to form an integral continuous surface,
The side of the second layer forms an inclined surface from the bottom surface to the first top surface, and the area of the first top surface is smaller than the top surface area of the first layer,
The extension of the middle part of the first layer to the handle is the third layer, and the extension of the second layer to the handle is formed as the fourth layer, and the top surface of the fourth layer is flat. The second uppermost surface and its bottom surface overlaps with the uppermost surface of the third layer to form an integral continuous surface,
In addition, the bottom surface of the third layer is superimposed on the flat surface portion of the handle to form an integral continuous surface,
The side of the fourth layer is inclined from the bottom surface to the second uppermost surface,
The open top wrench characterized in that the second top surface area is smaller than the top surface area of the third layer.

The first uppermost surface of the second layer and the second uppermost surface of the fourth layer are flat and form the same plane, and the first uppermost surface and the second uppermost surface are connected to form a Y shape. The second layer has a straight cross-sectional side shape, the fourth layer has a cross-sectional side shape that is a curved line, and the fourth layer has a cross-sectional side shape that has a concave curve. The open spanner according to claim 1.

The middle stage extending to the front end of the handle on the second uppermost surface, with the width of the front end side where the second uppermost surface of the fourth layer and the first uppermost surface of the second layer are connected to each other being the first width The width of the location is the second width, the first width is greater than the second width,
The arc shape of the rear end side of the middle stage extending to the handle on the second uppermost surface is defined as a first arc, and the diameter of the arc of the first arc is smaller than the second width, and the rear of the bottom surface of the fourth layer. The open spanner according to claim 1, wherein the arc shape of the end side is a second arc, and the arc diameter of the second arc is larger than the arc diameter of the first arc.

A connection point between the first layer and the handle is provided with a virtual second arc surface, from the intersection of the center vertical axis of the handle and the second arc surface to one end of the bottom surface of the fourth layer And the ratio of the second distance to the length of the handle is less than 1/2, 1: 3 to 1: 6, or 1: 6. The open spanner according to claim 1.

The second uppermost surface of the fourth layer is extended to the handle side, and there is a gap between the center axis of the second uppermost surface and the central longitudinal axis of the handle. Open spanner.

The side of the second layer forms an inclined surface continuous from the bottom surface to the first uppermost surface, and the shape of the side of the cross section of the second layer is a straight line. Open spanner.

A thickness as a distance between the first uppermost surfaces of the second layer above and below the drive unit is a first distance, and a middle line passing through the center of the bottom of the fitting port of the drive unit, the middle line, and the holding Between the central vertical axis of the hand has a depression angle of 15 degrees,
With the bottom shape of the fitting port as the first arc surface, the center line of the bottom portion passing through the fitting port forms a vertical line parallel to the central longitudinal axis, and the connection between the first layer and the handle A virtual arc-shaped second arc surface is formed at the location, and the intersection of the middle dividing line and the central vertical axis is on the second arc surface, and between the vertical line and the central vertical axis The open spanner according to claim 1, wherein the open spanner has a shift distance.

Between the uppermost surface of the first layer and the first uppermost surface of the second layer is a second layer in which the layers overlap and extend, and the side shape of the cross section of the second layer is a straight line or a convex curve The open spanner according to claim 1, wherein

The open spanner according to claim 1, wherein the area of the first uppermost surface of the second layer is 1/3 to 2/3 of the uppermost surface area of the first layer.

Between the uppermost surface of the third layer and the second uppermost surface of the third layer is a fourth layer formed by overlapping and extending the layers, and the side shape of the cross section of the fourth layer The open spanner according to claim 1, wherein is a straight line or a concave curve.