200824843 九、發明說明： 【發明所屬之技術領域】 尤其是指一種減輕重量與具 本發明係有關一種板手 加強結構之中空握柄扳手。 【先前技術】 手工具的發展係為一相當成熟的產業，各個扳手製造 $無不精②求精在追求更為剌、更容易製造、更能節省 成ί之設計。扳手的握柄由實心式，改良為空心式，而達 到即省重量與成本之設計，但錢具__失，因此本 發明人本著多年從事手卫具製造研發的經驗，希冀能研發 出一款確實減輕重量且具奴夠強度之握柄態樣。ι 茶照圖十四，為-體實心式之扳手，此種扳手結構強 度強，該扳手之頭部卜頸部2及握柄3，係由一體鍛造成 形’其整體皆為實心狀，不但增加了製程域本的支出， 2幅增加扳手的重量，且其_ 3健支扳手體積最大 —方’該握柄3重量之增加將造成使用者操作扳手之 荷’加速細者體力之耗損，姆降低了卫作之效每 有加以研發改良之必要。 手貝 參，圖十五，另有-種中空式扳手，為了改善實 量重之問題’該管狀之握柄4與頭部5相接，、而形 成扳手’惟，該中空狀之握柄4在成形時， Ξ厚雖達到確實減重之目的’但此—結構在扳動 I並無法承受較大之㈣。馳柄4包含有—較小外= 200824843 =處6與一較大外徑之握持處7，二者間成形一漸縮 目同壁厚之握柄4扳動時，手部握持於握， 2 4空狀之接合處6與漸轉8需承受扳轉之扭力， 持扭轉之扭力與剪力過大，使握柄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，本發日狀鱗決上叙種_題，乃依從 事，工具製造、研發之多年經驗’盼能創造出實用之發明， 經夕次輕改良祕於精㈣料本糾具有減輕重量且 ^強ί構之扳手’其可克㈣趣手本騎衍生之種種 缺失，貝為一極具新穎性及進步性之發明。 【發明内容】 ^式㈣重量重歸料成本支Μ，中空式板手因 土尽相同的關係’扳動時、，會因握持扳動之扭力與剪力過 大’而使握柄容易斷裂，在使用上強度結構不本發明 2針對上述之問題，致力研發創造出—種可節省材料、 =量輕、且使扳手本體具有足_顧，科使該握柄在 施力發生斷裂。 泣本發明『具加強結構之中錄柄板手』，包含有一頭 ^ 其中一端與頭部相接；一握柄，包含有一握 持部與—接合部’雜合部與該騎另-端祕，該握持 部與該接合部間形成—漸縮部，祕㈣係呈巾空狀 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 200824843 部之壁厚大於握持部之壁厚，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，兹舉一輕 ‘貝鈀例亚配合圖式詳述如後，此僅供說明之用，在專利 申請上並不受此種結構之限制。 参照·@-至圖三’為本發明第—實施例之立體外觀圖 ，、域分解圖。切明具加強結構之中空握柄扳手，包括 二:=;:10、一頸部20與一握柄3°。該頭部 成該換向關12。該頭部10漸縮而形 該頭部;"目之:部：’使該頸部20之一端為較大徑而與 ，㈣接 端為較小徑與該握柄30相接。於本 二飞力工而成，具有高強度。 為-有，㈣，該握持部31之二端分別 而开=t 卩32與—尾部33，魏㈣向内彎析 較於接合部32俾接的方式接合。該握持部3U目 31與該接合部=手部容易握持。該握持部 握持部幻處係】她部34’該漸縮部料鄰近該 形成-緩和漸缩:^ 341 ’使呈較大徑之握持部31先 至接合部32 ^ / 341使外徑減小，再經由漸縮㈣ ㈣而王-較小徑，使握柄3Q之轉平緩具有美 200824843 感。且外徑經由平缓的縮小，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30内之中空狀由尾部33相通至該接合部32， 而使該握柄30整體呈貫穿狀’該握柄3〇可實施為空心管， 而可降低生產成本。該握柄30形成有一握持部之壁厚以， 一弧部之壁厚d2，一漸縮部之壁厚d3與一接合部之壁厚 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D4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。& 中，該壁厚之厚薄關係係為：接合部之壁厚d4>漸縮部^ 壁厚d3>弧部之壁厚d2>握持部之壁厚dl。藉由壁厚較厚 之接合部32承受較大扭力，_馳薄之握持部31僅: 握持，可同時兼顧減重與加強結構。而漸縮部之壁厚⑽ 設計，使漸縮部34不因渐縮而容易斷裂，依然可承受握 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 與減重之因素。但因壁薄之因素，當握持於握持部&，施 力轉動轉手私__件，織觸31料因施力過 大而導致向_陷’而本發明於尾部33形成祕狀彎折 332向内 '縮，使該尾部33可承受較大力量而不向内凹陷。 當握持該麟部31施力時，力量將會被分散线弧狀彎折 332。藉由該握柄3〇内之空間使該握柄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。 200824843 該握柄30内之中空狀可供置放工具頭或螺鎖件，如螺 絲或螺母。可令操作者具有一收納之空間，無須另 你 該等小零件。 _ ' 一盍合件40，以可拆卸的結合於該尾部犯之孔3幻， 而封閉該握柄30，經由該蓋合件40之蓋合，使該握柄3〇 尾部33之結構強度增強。200824843 IX. Description of the invention: [Technical field to which the invention pertains] In particular, it relates to a hollow grip wrench which is light weight-reducing and has a wrench reinforcement structure according to the invention. [Prior Art] The development of hand tools is a fairly mature industry, and each wrench is manufactured in a more demanding, easier-to-manufacture, and more cost-effective design. The grip of the wrench is solid and improved into a hollow type, which achieves the design of saving weight and cost, but the money is lost. Therefore, the inventor has been engaged in the research and development of hand guards for many years, and hopes to develop A grip that really reduces weight and has a strong enough strength. ι Tea according to Figure 14 is a solid-type wrench. The structure of the wrench is strong. The head of the wrench is 2 and the handle 3 is formed by integral forging. The whole is solid, not only Increased the cost of the process domain, 2 increases the weight of the wrench, and its _ 3 health wrench has the largest volume - the increase of the weight of the handle 3 will cause the user to operate the wrench's acceleration of the acceleration of the physical strength, Mum reduced the effectiveness of the work and the need for research and development. Hand-shelled ginseng, Figure 15 and another type of hollow-type wrench, in order to improve the problem of the actual weight, the tubular handle 4 is connected to the head 5 to form a wrench 'only, the hollow handle 4 During the forming, the thickness of the crucible has achieved the purpose of really reducing the weight. However, the structure is unable to withstand the larger one (4). The handle 4 includes - a small outer = 200824843 = at 6 and a grip of a larger outer diameter 7, when the handle is formed with a tapered wall with the same thickness, the hand is held by Grip, 2 4 empty joints 6 and gradually rotate 8 need to withstand the torsion of the torsion, torsion torque and shear force is too large, so that the strength of the grip 4 is insufficient to break, so there is still a need to improve. In view of this, the Japanese-style scales are on the narrative _ questions, but they are engaged in the years of experience in tool manufacturing and R&D. They hope to create practical inventions, and improve the weight of the fines. And ^ strong 之 之 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' [Summary of the Invention] ^ (4) weight returning cost support, hollow wrenches due to the same relationship of soil 'when pulled, the grip will be too strong due to the grip and the shear force is too large' In the use of the upper strength structure, the present invention 2 is directed to the above-mentioned problems, and strives to develop and create a kind of material that can save material, is light in weight, and makes the wrench body have a foot, and the handle causes the grip to break at the applied force. Weeping the invention "the handle of the handle with a reinforced structure" includes a head ^ one end is connected to the head; a handle includes a grip portion and a joint portion of the joint portion and the rider-end end The secret portion is formed between the grip portion and the joint portion, and the secret (4) is in the form of a towel, and the handle has the effect of reducing weight. Wherein the wall thickness of the grip joint is greater than the wall thickness of the tapered portion, and the wall thickness of the tapered portion of 200824843 is greater than the wall thickness of the grip portion, so that a large torque can be withstood, so that the structural strength of the grip is more Enhanced. [Embodiment] The technology, the means and the efficacy thereof used in the present invention are described in detail below. This is for illustrative purposes only, and is not applicable to patent applications. Structural limitations. Reference is made to "@-to three" as a three-dimensional appearance of the first embodiment of the present invention, and an exploded view of the domain. A hollow grip wrench with a reinforced structure is defined, including two: =;: 10, a neck 20 and a handle of 3°. The head is in the commutating off 12 . The head 10 is tapered to form the head; "the part:' is such that one end of the neck 20 has a larger diameter and the (4) end has a smaller diameter that is in contact with the grip 30. It is made of Lifei and has high strength. In the case of -4, the two ends of the grip portion 31 are opened = t 卩 32 and the tail portion 33, respectively, and the Wei (4) inwardly curved is joined to the joint portion 32 in a manner of being joined. The grip portion 3U mesh 31 and the joint portion = the hand portion are easily held. The grip portion of the grip portion is a portion of the portion 34' of the tapered portion adjacent to the forming-mitigating taper: ^ 341 'the grip portion 31 having a larger diameter is first brought to the joint portion 32 ^ / 341 The outer diameter is reduced, and then the tapered (four) (four) and the king-small diameter make the grip 3Q smooth and have a sense of 200824843. Moreover, the outer diameter is reduced by gentleness, and there is no problem of stress concentration, and not only the aesthetics but also the strength is considered. The hollow portion of the grip 30 communicates with the engaging portion 32 by the tail portion 33, so that the grip 30 as a whole is penetrating. The grip 3 can be implemented as a hollow tube, and the production cost can be reduced. The grip 30 is formed with a wall thickness of the grip portion, a wall thickness d2 of an arc portion, a wall thickness d3 of a tapered portion and a wall thickness d4 of a joint portion. The outer diameter D1 of the grip portion is equal everywhere, and the thickness thereof is also equal everywhere. The outer diameter D4 and the thickness of the joint are also equal everywhere. The outer diameter D2 of the arc portion and the outer diameter D3 of the tapered portion are greatly reduced by the thickness D1 > D2 > D3 > D4 from the grip portion 31 to the connecting portion 32, and the thickness thereof is gradually thickened. In the &, the thickness relationship of the wall thickness is: the wall thickness d4 of the joint portion; the taper portion thickness d3> the wall thickness d2 of the arc portion; the wall thickness dl of the grip portion. By the large thickness of the joint portion 32 having a thick wall, the thin grip portion 31 is only held by the weight, and the weight reduction and the reinforcing structure can be simultaneously considered. The wall thickness (10) of the tapered portion is designed so that the tapered portion 34 is not easily broken by the taper, and can still withstand the torsion of the grip portion 31. The hollow shape of the grip 30 can reduce the production cost and has the factors of saving materials and reducing weight. However, due to the thinness of the wall, when gripping on the grip portion &, the force is applied to rotate the hand __piece, and the weaving contact 31 material is excessively biased to cause the trap to form a secret bend in the tail portion 33. The fold 332 is 'indented inwardly so that the tail 33 can withstand greater force without recessing inward. When the grip 31 is biased, the force will be bent 332 by the dispersion line. The grip 3 has a weight reduction effect by the space inside the grip 3, and the arc bend 332 allows the grip 3 to withstand a large grip. 200824843 The hollow shape of the handle 30 can be used to place a tool head or a screw lock such as a screw or a nut. This allows the operator to have a space for storage without the need for small parts. _ ' A splicing member 40 is detachably coupled to the hole 3 of the tail, and the handle 30 is closed, and the structural strength of the tail portion 33 of the handle 3 is closed by the cover member 40. Enhanced.
麥照圖四與圖五，為本發明第二實施例之示意圖。該 才反f包含有該頭部1〇、頸部2〇與握柄3〇。該頭部1〇内形 成有一容置空間13。該握柄30之實施方式係相同於第— 實施例’僅該尾部33之弧狀彎折332呈開放狀未設有任柯 元件。該握柄30之厚薄關係為：接合部之壁#泌漸縮部 之壁厚d3>弧部之壁厚故>握持部之壁厚μ。 „參照圖六，為本發明第三實施例之示意圖。該扳手之 ，二0、翁2。與握柄3G係為-體成形，該頭部说相 2弟二實施例。該握柄3G内之中空狀由尾部33相通至 部32,缝柄30之壁厚_相_第—實施例為: 之i厚壁厚似〉漸縮部之壁厚必弧部之壁厚d2>握持部 拓丰Γ圖"與圖人，為本發明第四實施例之示意圖。 孔2]，頭邠10内形成一容置空間13，該頸部20設有一」 内之中rHH1與該空心之握柄3G相連通，該握柄: 達到減:重曰：:了相通至該接合部32。該槽孔21更， 施例:ίΐ 握柄3G之壁厚關係相同於第一』 ’、P °卩之壁厚d4>漸縮部之壁厚d3>弧部之壁j 200824843 d2>握持部之壁厚dl。 - 參照圖九，為本發明第五實施例之示意圖。該扳手之 頭部10與騎2(M系相同於第二實施例。該握柄3〇内之中 空狀由尾部33相通至該接合部32，該握柄％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30係為一體成形。該握柄3〇内 之中空狀由尾部33相通至該接合部32，該握柄3()之 =目同於第-實施例為：接合部之壁厚泌漸縮部之壁 厚d3>弧部之壁厚d2>握持部之壁厚以。 參照圖十-’林發明第七實_之示意圖。該 =頭部與頸部2Q係相同於第二實施例。該她3〇 二接合部32，_33設有該蓋 口训心’使該握柄30尾部33之結構強度增強。該握 =30之壁厚關係相同於第一實施例為：接合部之壁厚泌 漸％部之壁厚d3>弧部之壁厚必握持部之壁厚私。 夕參照圖十二，為本發明第八實施例之示意圖。該 :=。、頸部20與握柄，係為一體成形，該頭㈣ 錐例。該握持部31與該接合部32中間形成 通34，該握柄3G内之中空狀由尾㈣相 厚泌漸縮部之壁厚必握持部之壁厚di。巧接口敎壁 茶知圖十三’為本發明第九實施例之示意圖。該板手 200824843 本體包含有該頭部10、頸部20與握柄3〇。該頭部1〇樞接 於該頸部20，形成一擺頭扳手之態樣。該握柄30之實施 =式係相同於第一實施例，僅該尾部33之弧狀彎折332 主開放狀未設有任何元件，而以—麟件5()套設於該握柄 3〇之握持部31。該握柄3〇之厚薄關係為：接合部之壁厚 d4>漸縮之壁厚沿〉弧部之壁厚必握持部之壁厚耵。 办、本發明之具加強結構之中空握柄扳手，該握柄内呈中 ’工狀’而可節省材料與重量。經由接合部之壁厚〉漸縮部之 壁弧部之壁厚>歸部之縛，藉由壁厚較厚之接合部 承受較大扭力’而·㈣之縣部僅雜持，可 ，減重與加強結構。而該漸縮部之壁厚亦大於握持部之辟 =縮部不因漸縮而容易斷裂，依然可承受握持部ς 就以上所述可以歸納出本發明具有以下之優點： 1. =月『具加強結構之中空握柄扳手』，其 =之你接合部之壁厚> 漸縮部之轉 >弧部之 = >握^卩之壁厚。藉由厚段承受較大扭力，而薄段供握 持，同時可具備減重及加強結構之特色。 八 2. 讀明『具加強結構之中空握柄扳手』，其 握柄内之開放狀，使雜柄可節省材料，收工且^ 3. 本發明『具加強結構之中空握柄扳手』，Γ中本= 之蓋合件蓋合於尾部，更加_柄之結構较發月 4·本發明『具加強結構之中空 之中空握柄可減輕重量並節省材料柄扳手』’其中本發明 11 200824843 一由疋觀之，本發明極具產業上利用價值；且又未見有 2同或類似之發明出現於國内外刊物或公開使用，實已符 : 。專利法規定之積極及雜要件，理縣予發明專利。 : 、唯亡所述者，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’白應仍屬本發明專利涵蓋之範壽。 【圖式之簡要說明】 圖·為本發明第一實施例之立體外觀圖。 圖一 ··為本發明第一實施例之局部透視圖。 1 圖三：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 200824843 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。-【主要元件符號說明】 (習知）FIG. 4 and FIG. 5 are schematic diagrams showing a second embodiment of the present invention. The reverse f includes the head 1 颈部, the neck 2 〇 and the grip 3 〇. An accommodating space 13 is formed in the head 1 。. The embodiment of the handle 30 is the same as that of the first embodiment. Only the arcuate bend 332 of the tail portion 33 is open and is not provided with any element. The thickness of the grip 30 is such that the wall thickness of the joint portion is the wall thickness d3 of the tapered portion, and the wall thickness of the arc portion is > Referring to Figure 6, a schematic view of a third embodiment of the present invention is shown in Fig. 6. The wrench is 20, Weng 2. The handle 3G is formed by a body, and the head is said to be a second embodiment. The handle 3G The inner hollow is communicated from the tail portion 33 to the portion 32, and the wall thickness of the shank 30 is _ phase - the embodiment is: i thick wall thickness is like > the wall thickness of the tapered portion is the thickness of the arc portion d2 > The figure is a schematic view of a fourth embodiment of the present invention. The hole 2] defines a receiving space 13 in the head cymbal 10, and the neck 20 is provided with an inner rHH1 and the hollow. The grip 3G is in communication with the grip: reaching the minus: heavy:: communicating to the joint 32. The slot 21 is further, for example: 壁 The wall thickness of the grip 3G is the same as that of the first 』 ', P ° 壁 wall thickness d4 gt; the thickness of the tapered portion d3 gt; the wall of the arc j 200824843 d2 gt; The wall thickness of the part is dl. - Referring to Figure 9, a schematic view of a fifth embodiment of the present invention. The head 10 of the wrench is the same as the rider 2 (M system is the second embodiment. The hollow shape of the handle 3 is communicated by the tail portion 33 to the joint portion 32, and the wall thickness of the handle is the same as the first The embodiment is: the wall thickness d4 of the joint portion; the wall thickness d2 of the thickness portion of the tapered portion; the wall thickness d1 of the grip portion. Referring to Fig. 10' is a schematic view of a sixth embodiment of the present invention. The head portion 10, the neck portion 20 and the handle 30 are integrally formed. The hollow portion of the handle 3 is communicated by the tail portion 33 to the joint portion 32, and the handle 3() is the same as the first embodiment. For example, the wall thickness d3 of the thickness of the joint portion is d3> the wall thickness of the arc portion is d2> the wall thickness of the grip portion is as follows. Referring to Figure 10 - the schematic diagram of the seventh invention of the invention of the forest. It is the same as the second embodiment of the neck 2Q. The 3's two joints 32, _33 are provided with the cover training' to enhance the structural strength of the tail portion 33 of the handle 30. The wall thickness relationship of the grip = 30 The same as in the first embodiment, the wall thickness d3 of the wall thickness of the joint portion is d3> the wall thickness of the arc portion is thicker than the wall portion of the grip portion. Referring to FIG. 12, it is the eighth embodiment of the present invention. In the meantime, the neck portion 20 and the grip are integrally formed, and the head (four) is tapered. The grip portion 31 forms a passage 34 with the joint portion 32, and the hollow shape of the grip 3G is tailed. (4) The wall thickness of the phase thickening and contraction portion must be the wall thickness of the grip portion. The smart interface is the schematic diagram of the ninth embodiment of the present invention. The wrench 200824843 body includes the head 10 The neck portion 20 and the handle 3 are pivoted. The head portion 1 is pivotally connected to the neck portion 20 to form a swinging wrench. The implementation of the handle 30 is the same as that of the first embodiment, and only The arcuate bend 332 of the tail portion 33 is not provided with any components, and the collar member 5 () is sleeved on the grip portion 31 of the handle 3. The thickness relationship of the handle 3 is: joint The thickness of the wall is d4> The wall thickness of the tapered portion is thicker than the wall thickness of the arc portion. The hollow grip wrench with the reinforced structure of the present invention has a middle work shape. 'The material and weight can be saved. The wall thickness through the joint portion> the wall thickness of the wall portion of the tapered portion> the binding of the portion, which is subjected to a large torque by the thick joint portion of the wall thickness. (4) The county department only mixes and holds, can reduce weight and strengthen the structure. The wall thickness of the tapered part is also larger than that of the grip part. The shrinkage part is not easily broken due to the shrinkage, and can still withstand the grip. The above description can be summarized that the present invention has the following advantages: 1. = "Hollow grip wrench with reinforced structure", which = wall thickness of your joint portion > Turning of the tapered portion >>The wall thickness of the grip is thick. The thick section is subjected to a large torque, while the thin section is used for holding, and at the same time, it can have the characteristics of weight reduction and reinforcement structure. 八2. Read the hollow handle wrench with reinforced structure 』, the open shape in the grip, so that the handle can save material, and the work is completed. ^ 3. The invention has a hollow handle wrench with a reinforced structure, and the cover member of the =中== covers the tail, and more _ The structure of the handle is more than that of the month. 4. The invention relates to a hollow hollow handle with a reinforced structure, which can reduce the weight and save the material handle wrench. The present invention 11 200824843 is one of the industrial use values of the present invention; And there are no 2 or similar inventions appearing in domestic and foreign publications or public use. :. The positive and miscellaneous items stipulated in the Patent Law, Lixian to invention patents. The present invention is only a 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 according to the scope of the patent application of the present invention. The equal change and modification 'White' is still the life covered by the patent of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a first embodiment of the present invention. Figure 1 is a partial perspective view of a first embodiment of the present invention. 1 is a cross-sectional view taken along the line of the first figure 3-3 of the first embodiment of the present invention, showing a schematic view of the wall thickness of the handle. 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, showing a schematic view of the wall thickness of the handle. 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 of the fourth embodiment of the present invention taken from the section line 8-8 of Figure 7, 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 200824843 FIG. 13 is a schematic view showing the wall thickness of the grip of 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. -[Main component symbol description] (General knowledge)
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 孔 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 孤部之外徑 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 Hole 332 Curved bend 34 Tapered portion 341 Arc portion 40 Cover member 50 Grip member D1 External diameter D2 of grip portion Outer diameter D3 The outer diameter of the constriction 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