1316444 九、發明說明: 【發明所屬之技術領域】 本發明係有關-種扳手,尤其是指一種減輕重 加強結構之中空握柄扳手。 、/、 【先前技術】 手工具的發展係為—相當成熟的產業,各個板手 ’無不精i祕在追求更為好用、更容㈣造、更 成本之設計。扳手的握柄由實心式,改空 計,但依然具有種種缺失?二 發月人本者夕年從事手工具製造研發的經驗,希冀 出-款碟實減輕重量且具有足夠強度之握柄態樣。 參照圖切,為—體實心式之扳手,此種 二正體&為貫心狀’不但增加了製程上成本的支 的二增的重量,且其握柄3係整支扳手體積最大 # 4柄3重量之增加㈣成伽麵作扳手之 :,加速使用者體力之耗損,相對降低了工作之效率,資 有加以研發改良之必要。 干貫 扳手十五,另有—種中以扳手,為了改善實心式 =之問題’該管狀之握柄4與頭部5相接,而形 壁厚it等惟雜該中空狀之握柄4在成形時,該握柄4之 時,承達到確實減重之目的’但此-結構在扳動 支、、、法承雙較大之扭力。該握柄4包含有一較小外徑 1316444 之接合處6與-較大外徑之握持處7,二者間成形一漸縮 處8,當相同壁厚之握柄4扳動時’手部握持於握持處7, 此時’呈中空狀之接合處6與漸縮處8需承受扳轉之扭力, 常會因握持扭轉之扭力與動過大,使麵4強度不足而 發生斷裂,因此依然有加以改進之必要。 有鑑於此,本發明人為解決上述之種種問題,乃依從 事手工具製造、研發之多卑經驗,盼能創造出實狀發明, 經多次開發改良後終於精心設計出本發明具有減輕重量且 具加強結構之扳手’其可克服習式扳手树所衍生之種種 缺失,實為一極具新穎性及進步性之發明。 【發明内容】 實心式扳手重量重且材料成本支出高,中空式板手因 壁厚相同關係’扳树會隨持聽之扭力與剪力過 大,而使握柄谷易斷裂,在使用上強度結構不足。本發明 人乃針對上述之問題,致力研發創造出一種可節省材料、 重量輕、且使扳手本體具有足_強度,不致使該握柄在 施力發生斷裂。 本發明『具加強結構之中空握柄扳手』,包含有—頭 部;一頸部,其中一端與頭部相接;一握柄,包含有一握 持部與一接合部,該接合部與該頸部另一端相接,該握持 部與該接合部間形成-漸縮部,該握柄内係呈中空狀,使 該握柄具有減重之功效。 其中,該握柄接合部之壁厚大於漸縮部之壁厚,漸縮 1316444 部之壁厚大祕料之壁厚,故可承受較大之扭力,令該 握柄之結構強度更為增強。 【實施方式】 有關本發明所採用之技術、手段及其功效 ,兹舉一較 仏;紅例並配合圖式詳述如後’此僅供說明之用,在專利 申請上並不受此種結構之_。 /參照圖-至圖三,為本發明第一實施例之立體外觀圖 ;=ΓΓ月具加強結構之中空握柄板手,包括 Μ()' 1部20與一握柄30。該頭部 成與—換向開關12。該頭部10漸縮而形 =加==_施為-件“鍛 30具有一握持部31,該握持部幻之 ==接合部32與-尾㈣,該尾部•丄 簡⑽饱軸同於= 之螭而以摩擦熔接的方式合。 較於接合部32係呈較大外徑,使手部31相 31與該接合部32間形成一漸縮部3;==: 握持部31處係為 遷邛料鄰近該 形成-緩和漸縮^ Λ 吏較大徑之握持部31先 至接合部32而呈一?二了徑減小,再經由漸縮部34 幸乂小仏’使握柄30之曲線平緩具有美 1316444 感。且外徑經由平緩的縮小,較不會有應力集中的問題, 不僅達到美觀更兼顧了強度的問題。 -該握柄内之中空狀由尾部33相通至該接合部%, 而使該握柄30整體呈貫穿狀,該握柄30可實施為空心管’ 而可降低生產成本。該握柄3Q形成有—握持部之壁厚^, -弧部之壁厚d2,-漸縮部之壁厚d3與一接合部之 d4。該握持部之外徑D1每一處均相等,且其厚度亦每一處 均相等。該接合部之外徑!)4與厚度,亦每一處均相等。該 弧部之外徑D2與該漸縮部之外徑D3,由握持部31至接: 部32係由大漸小D1>D2>D3>D4,而其厚度係由薄漸厚。ς 中,該壁厚之厚薄關係係為:接合部之壁厚d心漸縮部之 壁厚d3>孤部之壁# d2>握持部之壁厚d卜藉由壁厚較 之接合部32承受較大扭力,*壁厚較薄之握持部31僅供 握持,可_兼顧減重與加強結構。輯縮部之壁厚犯 設計,使漸縮部34不騎縮而容易_,依然可承受 部31扳轉之扭力。 、 該握柄30之空心狀,可降低生產成本,具有節省材料 與減重之时。但因壁薄之因素,#握持雜持部31,施 力轉動轉手藉以驅_鎖件,聰持部31容㈣施力過 大而導致向’而本發贿尾部33形财弧狀彎折 332向内縮,使該尾部33可承受較大力量而不向内凹陷。 當握持該_部31施力時,力量將會齡散至該弧狀彎折 332。藉由該握柄30内之空間使該握柄3〇具有減重之功 效’且該弧狀彎折332使該握柄3〇可承受較大之握持力。 1316444 該握柄30内之中空狀可供置放工具頭或螺鎖件, 該等小零件 絲,螺母。可令操作者具有—收納之空間,無顧外置放 蓋〇件40,以可拆卸的結合於該尾部犯之孔, ㈣__ 30 ’經由該蓋合件40之蓋合’使該握相3〇 尾部33之結構強度增強。1316444 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a wrench, and more particularly to a hollow grip wrench that reduces the weight-reinforcing structure. , /, [Previous technology] The development of hand tools is a fairly mature industry, and each of the players is not only in the pursuit of better, more (four), more costly design. The grip of the wrench is made of solid type and empty, but it still has all kinds of defects. The second person of the moon is engaged in the research and development of hand tools, and hopes that the disc will lose weight and have sufficient strength. kind. Referring to the figure cut, it is a solid-type wrench. This two-body & is a heart-shaped shape, which not only increases the weight of the cost of the process, but also has the largest value of the handle 3 of the whole wrench. The increase of the weight of the handle 3 (4) into the gamma surface as a wrench: Accelerate the wear and tear of the user's physical strength, relatively reduce the efficiency of the work, and the need for research and development. The dry spanner is fifteen, and the other is a wrench, in order to improve the problem of the solid type = the tubular grip 4 is in contact with the head 5, and the wall thickness is equal to the hollow grip 4 At the time of forming, when the grip 4 is held, the bearing is surely to reduce the weight. However, the structure has a large torque in pulling the branch, and the bearing. The handle 4 includes a joint 6 of a smaller outer diameter 1316444 and a grip 7 of a larger outer diameter, and a tapered portion 8 is formed therebetween. When the handle 4 of the same wall thickness is pulled, the hand is The portion is held at the grip portion 7, and the hollow joint 6 and the taper 8 are subjected to the torsion force, and the torsion and the movement of the grip are often too large, so that the strength of the surface 4 is insufficient to break. Therefore, there is still a need to improve it. In view of the above, the present inventors have solved the above problems, and are eager to create a real invention based on the experience of manufacturing and researching and developing hand tools. After many developments and improvements, the inventors have finally designed the invention to reduce weight and have The reinforced structural wrench' can overcome the various defects derived from the wrench tree, which is a novel and progressive invention. [Summary of the Invention] The solid wrench is heavy in weight and high in material cost. The hollow wrench has the same wall thickness. The wrench will have too much torque and shear force, so the grip valley is easy to break, and the strength structure is used. insufficient. The present inventors have focused on the above problems, and have worked hard to develop a material that can save material, is light in weight, and has a foot body strength that does not cause the handle to break at the applied force. The invention relates to a hollow handle wrench with a reinforced structure, comprising: a head; a neck, one end of which is in contact with the head; a handle comprising a grip portion and a joint portion, the joint portion and the joint portion The other end of the neck is connected, and the grip portion and the joint portion form a tapered portion, and the inside of the grip is hollow, so that the handle has the effect of reducing weight. Wherein, the wall thickness of the grip joint portion is larger than the wall thickness of the tapered portion, and the wall thickness of the tapered portion 1316444 is thick, so that the wall can be subjected to a large torque, and the structural strength of the grip is further enhanced. . [Embodiment] The techniques, means and functions of the present invention are described in more detail; the red case is detailed with the drawings, and the following is for illustrative purposes only, and is not subject to such patent application. Structure _. Referring to the drawings - to FIG. 3, a three-dimensional external view of the first embodiment of the present invention is provided; = a hollow grip wrench having a reinforced structure, including a cymbal (1) portion 20 and a grip 30. The head is coupled to a commutation switch 12. The head 10 is tapered and shaped = plus == _ is - "Forging 30 has a grip portion 31, the grip portion is magical == joint portion 32 and - tail (four), the tail portion / 丄 ( (10) full The shaft is combined with the same as the friction welding method. The joint portion 32 has a larger outer diameter, so that a tapered portion 3 is formed between the hand 31 phase 31 and the joint portion 32; ==: holding At the portion 31, the gripping portion 31 of the larger diameter is adjacent to the forming material, and the grip portion 31 of the larger diameter is first reduced to the joint portion 32, and then reduced by the tapered portion 34.仏 'The curve of the grip 30 is smooth and has a beautiful 1316444 feeling. And the outer diameter is smoothed down, there is no problem of stress concentration, not only the aesthetics but also the strength problem. - The hollow shape inside the handle The tail portion 33 communicates with the joint portion %, so that the handle 30 is integrally penetrated, and the handle 30 can be implemented as a hollow tube ' to reduce the production cost. The handle 3Q is formed with a wall thickness of the grip portion ^ - the wall thickness d2 of the arc portion, the wall thickness d3 of the tapered portion and the d4 of the joint portion. The outer diameter D1 of the grip portion is equal everywhere, and the thickness thereof is also equal everywhere. The outer diameter of the joint!) 4 and the thickness are also equal everywhere. The outer diameter D2 of the arc portion and the outer diameter D3 of the tapered portion are connected by the grip portion 31: the portion 32 is greatly reduced D1>D2>D3>D4, and the thickness thereof is gradually thickened. In ς, the thickness relationship of the wall thickness is: the wall thickness of the joint portion, the wall thickness of the tapered portion d3> the wall of the orphan portion #d2> The wall thickness d of the grip portion is subjected to a larger torque than the joint portion 32, and the grip portion 31 having a thin wall thickness is only for holding, and the weight reduction and the reinforcing structure can be taken into consideration. The wall thickness is designed to make the tapered portion 34 not easy to be slid, and the torque of the portion 31 can be withstood. The hollow shape of the handle 30 can reduce the production cost, and save material and weight loss. However, due to the thin wall factor, # grip the hybrid part 31, the force is turned to turn the hand to drive the lock, and the clever part 31 is (4) the force is too large and leads to the 'Bare of the bribe. The fold 332 is inwardly retracted so that the tail portion 33 can withstand a large force without being recessed inward. When the grip portion 31 is biased, the force will be dissipated to the arcuate bend 332. With the grip Space within 30 The handle 3 has the effect of reducing weight' and the curved bend 332 allows the handle 3 to withstand a large holding force. 1316444 The hollow shape of the handle 30 can be used to place the tool head or screw The lock member, the small part wire and the nut can provide the operator with a space for accommodating, regardless of the external cover member 40, to be detachably coupled to the hole of the tail, (4) __ 30 'via the cover The cover of the member 40 enhances the structural strength of the grip 3 tail portion 33.
參照圖四與圖五,為本發明第二實施例之示意圖。該 扳手包含有該頭部10、頸部2〇與握柄3〇。該頭部1〇 = 成有-各置空間13。該握柄3G之實施方式係_於第一 實施例’僅該尾部33之弧狀彎折微呈開放狀未設有任 握柄aa之厚薄關係為:接合部之壁厚d4>漸縮部 土厚d3>弧部之壁厚收〉握持部之壁厚。 „參照圖六’為本發明第三實施例之示意圖。該扳手之 ,二?、頸部2〇與握柄3〇係為一體成形,該頭部10相 二只施例。該握柄3〇内之中空狀由尾部助相通至 j。部32,該握柄30之壁厚關係相同於第一實施例為· =之壁厚d4>漸縮部之壁厚d3>弧部之壁厚必握持部 愛厚 dl。 參照圖七與圖八’為本發明第四實施例之示意圖。該 ^之碩部10内形成-容置空間13,該頸部2〇設有一槽 ^,該槽孔21與該空心之握柄30相連通,該握柄30 之中錄由尾部33相通至該接合部32。該槽孔2i更可 a到減輕重量之功效。該握柄3G之壁厚關係相同於第 知例為··接合部之壁厚d4>漸縮部之壁厚必弧部之壁厚 1316444 d2>握持部之壁厚di。 參照圓九,為本發明第五實施例之示意圖。該扳手之 頭部10與頸部20係相同於第二實施例。該握柄30内之中 空狀由尾部33相通至該接合部32,該握柄3()之壁厚關係 相同於第-實施例為:接合部之壁厚d4>漸縮部之壁厚必 弧部之壁厚d2>握持部之壁厚dl。 ' 參照圖十,為本發明第六實施例之示意圖。該扳手之 頭部10、頸部20與握柄3〇係為一體成形。該握柄%内 之中空狀由尾部33相通至該接合部32,織柄3Q之 ,係相同於第-實施例為:接合部之壁厚必〉漸縮部之壁 尽弧部之壁厚d2>握持部之壁厚di。 參照圖十―,為本發明第七實施例之示意圖。該扳手 與頸部20係相同於第二實施例。該握柄3〇内之 33相通至該接合部&,該尾部33設有該蓋 e件40盘合,使該握柄3〇尾部33之結構強 =30之壁厚關係相同於第—實施例為:接合部之壁厚= 漸縮部之壁厚d3>弧部之壁厚d2>握持部之壁厚似 之炉十二,為本發明第人實施例之示意圖。該扳手 之2〇與_ 3〇係為一體成形,該頭部ι〇 相同於第二實施例。該握持部31與該接合部犯 ^呈錐狀之漸騎34,難柄⑽之中级由尾部a3= 部% ’該握柄3〇之壁厚關係為:接合部之壁 ;d4>漸縮部之壁厚d3>握持部之壁厚di。 ·-4 and 5 are schematic views of a second embodiment of the present invention. The wrench includes the head 10, the neck 2 〇 and the grip 3 〇. The head 1 〇 = has - each space 13 . The embodiment of the grip 3G is a first embodiment in which only the arcuate bend of the tail portion 33 is slightly open and the thickness of the grip aa is not provided: the wall thickness of the joint portion d4> the tapered portion Soil thickness d3> The wall thickness of the arc portion is > the wall thickness of the grip portion. „Reference to Fig. 6' is a schematic view of a third embodiment of the present invention. The wrench, the second neck portion and the neck portion 2 are integrally formed with the handle 3, and the head portion 10 has two embodiments. The hollow shape in the crucible is communicated from the tail portion to the portion 32. The wall thickness of the grip 30 is the same as the wall thickness d4 of the first embodiment. The wall thickness d3 of the tapered portion is the wall thickness of the arc portion. Referring to FIG. 7 and FIG. 8 ' is a schematic view of a fourth embodiment of the present invention. The main portion 10 of the ^ is formed with a receiving space 13 , and the neck portion 2 is provided with a slot ^ The slot 21 communicates with the hollow grip 30, and the handle 30 is recorded by the tail portion 33 to the joint portion 32. The slot 2i can further reduce the weight. The wall thickness of the grip 3G The relationship is the same as the first example: the wall thickness d4 of the joint portion; the thickness of the thick portion of the tapered portion is 1316444 d2> the wall thickness di of the grip portion. Referring to the circle nine, the fifth embodiment of the present invention The head 10 of the wrench is identical to the neck 20 in the second embodiment. The hollow shape in the handle 30 is communicated by the tail 33 to the joint 32, the wall of the handle 3 () The relationship is the same as that of the first embodiment: the wall thickness d4 of the joint portion; the wall thickness d2 of the thick portion of the tapered portion; the wall thickness d1 of the grip portion. Referring to FIG. 10, it is a sixth embodiment of the present invention. The head portion 10, the neck portion 20 of the wrench and the handle 3 are integrally formed. The hollow portion of the handle is communicated by the tail portion 33 to the joint portion 32, and the woven handle 3Q is the same as the first - In the embodiment, the wall thickness of the joint portion must be > the wall thickness d2 of the wall portion of the tapered portion; the wall thickness di of the grip portion. Referring to Fig. 10, a schematic view of a seventh embodiment of the present invention. The same as the second embodiment of the neck portion 20. The 33 of the handle 3 is communicated to the joint portion & the tail portion 33 is provided with the cover e member 40, so that the handle 3 is tailed 33 The wall thickness of the structural strength = 30 is the same as that of the first embodiment: the wall thickness of the joint portion = the wall thickness d3 of the tapered portion; the wall thickness d2 of the arc portion; the wall thickness of the grip portion is like the furnace twelve, A schematic view of the first embodiment of the present invention. The wrench is integrally formed with the _ 3 ,, and the head 〇 is identical to the second embodiment. The grip portion 31 and the joint portion The ruler is a tapered rider 34, the difficult handle (10) is intermediate by the tail a3 = part% 'The wall thickness of the handle 3〇 is: the wall of the joint; d4> the wall thickness of the taper d3> The wall thickness of the department is di.
參照圖十三,為本發明第六森& A 货㈣九^例之示意圖。該扳手 1316444 =包含有該頭部Π)、頸部2G與握柄3G。該頭部ι〇樞接 二頌。P 20 ’形成-擺頭扳手之態樣。該握柄3〇之實施 ί係相同於第一實施例’僅該尾部路之弧狀彎折332 設餘低件㈣―輯件5G紐於該握柄 至、部3卜該握柄3〇之厚薄關係為:接合部之壁厚 d4>漸縮部之壁厚d3>弧部之壁象必握持部之壁厚^。Referring to Fig. 13, there is shown a schematic diagram of a sixth embodiment of the sixth invention & A cargo (four). The wrench 1316444 = includes the head Π), the neck 2G and the grip 3G. The head 〇 is pivoted to the second side. P 20 'forms - the shape of the oscillating wrench. The implementation of the grip 3 is the same as that of the first embodiment. Only the arcuate bend 332 of the tail road is provided with a lower part (four) - the piece 5G is attached to the handle to the part 3 and the handle is 3 The thickness relationship is: the wall thickness d4 of the joint portion; the wall thickness d3 of the tapered portion; the wall thickness of the wall portion of the arc portion must be gripped.
、本發明之具加強結構之中空握柄扳手,該握柄内呈中 2 ’而可節省材料與重量。經由接合部之壁厚〉漸縮部之 握持部之壁厚’藉由壁厚較厚之接合部 f受較大扭力’而鮮輯之_部健麟,可同時兼 β減重與加強結構。⑽漸縮部之壁厚亦大於握持部之壁 使漸縮部不因漸_容易斷裂,依然可承受握持部板 轉之扭力。 就以上所述可以歸納出本發明具有以下之優點: 1. 本發明『具加強結構之巾缝柄扳手』,其中本發明 星柄之壁厚關係為:接合部之壁厚〉漸縮部之壁厚〉弧部之 土厚〉握持部之壁厚。藉由厚段承錄大扭力,而薄段供握 持’同時可具備減重及加騎構之特色。 2. 本發明『具加強結構之中空握柄扳手』,其中本發明 屋柄内之開放狀’使該握柄可節省材料,且可收納工具頭。 #3.本發明『具加強結構之中空握柄扳手』,其中本發明 之蓋。件蓋合於尾部,更加強握柄之結構強度。 4·本發明『具加強結構之中空握柄扳手』,其中本發明 之中空握柄可減輕重量並節省材料。 11 1316444 由是觀之,本發明極具產業上利用價值;且又未見有 相同或類似之發明出現於國内外刊物或公開使用,實已符 合專利法規定之積極及消極要件,理應准予發明專利。 唯上所述者,僅為本發明之較佳實施例而已,當不能 以之限定本發明實施之範圍,故舉凡數值之變更或等效元 件之置換’或依本發明申請專利範圍所作之均等變化與修 飾’皆應仍屬本發明專利涵蓋之範嗨。 【圖式之簡要說明】 圖一:為本發明第一實施例之立體外觀圖。 圖二.為本發明第一實施例之局部透視圖。 圖二.為本發明第一實施例由第一圖3_3剖面線所取之剖 視圖’表該握柄壁厚之示意圖。 圖四:為本發明第二實施例之局部透視圖。 圖五:為本發明第二實施例由圖四5-5剖面線所取之剖視 圖’表該握柄壁厚之示意圖。 圖六·為本發明第三實施例之握柄壁厚之示意圖。 圖七:為本發明第四實施例之局部透視圖。 圖八:為本發明第四實施例由圖七8_8剖面線所取之剖視 圖’表該握柄壁厚之示意圖。 圖九··為本發明第五實施例之握柄壁厚之示意圖。 圖十:為本發明第六實施例之握柄壁厚之示意圖。 圖十一:為本發明第七實施例之握柄壁厚之示意圖。 圖十二:為本發明第八實施例之握柄壁厚之示意圖。 12 1316444 圖十三:為本發明第九實施例之握柄壁厚之示意圖。 圖十四:為習知實心式扳手之示意圖。 圖十五:為習知中空式扳手之示意圖。 -The hollow grip wrench with the reinforced structure of the present invention has a middle 2' inside the handle to save material and weight. Through the thickness of the joint portion, the wall thickness of the grip portion of the tapered portion is greatly increased by the thicker joint portion f of the thicker portion of the joint portion, which can simultaneously reduce the weight and strengthen the β. structure. (10) The wall thickness of the tapered portion is also larger than the wall of the grip portion. The tapered portion is not easily broken due to the gradual change, and can still withstand the torque of the grip plate. In view of the above, it can be summarized that the present invention has the following advantages: 1. The invention relates to a "sleeve handle wrench with a reinforced structure", wherein the wall thickness of the star shank of the present invention is: wall thickness of the joint portion > tapered portion Wall thickness > soil thickness of the arc portion > wall thickness of the grip portion. With a large section to record high torque, and a thin section for holding, it can also have the characteristics of weight reduction and riding. 2. The "hollow grip wrench with reinforced structure" of the present invention, wherein the open shape in the handle of the present invention allows the grip to save material and accommodate the tool head. #3. The invention relates to a hollow handle wrench with a reinforced structure, wherein the cover of the invention. The cover is attached to the tail to further strengthen the structural strength of the handle. 4. The "hollow grip wrench with reinforced structure" of the present invention, wherein the hollow grip of the present invention can reduce weight and save material. 11 1316444 From the point of view, the invention is of great industrial value; and no identical or similar inventions appear in domestic and foreign publications or in public use, which have already met the positive and negative requirements of the patent law, and should be approved for invention. patent. The above description is only for the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced or equal to the scope of the patent application of the present invention. Both changes and modifications should remain within the scope of the patents of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention. Figure 2 is a partial perspective view of a first embodiment of the present invention. Fig. 2 is a cross-sectional view taken along the line of the first figure 3-4 of the first embodiment of the present invention, showing the wall thickness of the grip. Figure 4 is a partial perspective view of a second embodiment of the present invention. Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4 of the second embodiment of the present invention. Figure 6 is a schematic view showing the wall thickness of the grip of the third embodiment of the present invention. Figure 7 is a partial perspective view of a fourth embodiment of the present invention. Figure 8 is a cross-sectional view taken along the line of Figure 8-8 of the fourth embodiment of the present invention, showing the wall thickness of the grip. Figure 9 is a schematic view showing the wall thickness of the grip of the fifth embodiment of the present invention. Figure 10 is a schematic view showing the wall thickness of the grip of the sixth embodiment of the present invention. Figure 11 is a schematic view showing the wall thickness of the grip of the seventh embodiment of the present invention. Figure 12 is a schematic view showing the wall thickness of the grip of the eighth embodiment of the present invention. 12 1316444 FIG. 13 is a schematic view showing the wall thickness of the grip according to the ninth embodiment of the present invention. Figure 14: Schematic diagram of a conventional solid wrench. Figure 15: Schematic diagram of a conventional hollow wrench. -
【主要元件符號說明】 (習知)[Main component symbol description] (known)
1 頭部 2 頸部 3 握柄 4 握柄 5 頭部 6 接合處 7 握持處 8 漸縮處 (本發明) 10 頭部 11 棘動件 12 換向開關 13 容置空間 20 頸部 21 槽孔 30 握柄 31 握持部 32 接合部 33 尾部 331 332 弧狀彎折 34 漸縮部 341 弧部 40 蓋合件 50 握持件 D1 握持部之外徑D2 弧部之外徑 D3 漸縮部之外徑 D4 接合部之外徑dl 握持部之壁厚d2 弧部之壁厚 d3 漸縮部之壁厚d4 接合部之壁厚 , 131 head 2 neck 3 grip 4 grip 5 head 6 joint 7 grip 8 taper (invention) 10 head 11 ratchet 12 reversing switch 13 housing space 20 neck 21 slot Hole 30 Grip 31 Grip 32 Engagement 33 Tail 331 332 Curved bend 34 Tapered portion 341 Arc portion 40 Cover member 50 Grip member D1 External diameter D2 of the grip portion External diameter D3 of the arc portion Tapered The outer diameter of the part D4 The outer diameter of the joint dl The wall thickness of the grip d2 The wall thickness of the arc d3 The wall thickness of the taper d4 The wall thickness of the joint, 13