1275525 九、發明說明： 【發明所屬之技術領域】 由於現在人類之生活素質普遍提 „大豕越來越重視休 ::二:踏車也由以往之代步功能，曰漸提昇到運 動、健身或者是單車之各項競技。而從事自行車及盆臾 組件之製造業者，莫不如盡慮，以求製造出強度/ 強，重量卻更輕的自行車’而為了達到此一目的，除了 仰賴新的材料科技的提升外，使用舊東西，利用新的加 工技術，賦予其新生命，也是—種好方法。而創作者乃 專業之單車各項零組件之業者’財發明乃將傳統所用 之腳踏車曲柄利用各項組合式元件，進而將其成為一個 組裝式的結合式曲柄使之成為強度更強，重量更輕，而 更方便加工，並更節省加工成本。 【先前技術】 從前自行車之曲柄，大多為實心之金屬，強度雖強，但 卻笨重，隨著單車逐漸成為比赛競技之用，強度強、重 量輕已成為各單車製造業者之首要目標，而今業者雖有 人開發出空心曲柄之設計，但是其加工法大都為鍛造或 開模鑄造而成，且因曲柄主體與頭部尾部皆採分開接 合，而此種做法不僅加工步驟繁瑣，而因為之後須採烊 接加工而成，所以不僅強度明顯不足，且在加工過程中 1275525 生曲柄壁之厚薄不均’且曲柄頭尾因需要連接 早車車身及踏板，所以曲柄頭尾都須有螺孔，所以 較強之強度’故傳統之锻造或鏵造成型皆是曲柄頭:實 二所以曲柄之整體重量就會較重。例如；坊間所見， =貝局核准公告之公告⑽846號及478984·_ 4專t皆為此傳統之加工法所成型之中空曲柄，不僅 加：釭序繁瑣’成本高，而若比較強度、重量、加工簡 便程度，習用者卻是遠不如本發明。 " 【發明内容】 本案創作乃先將既有之管材 頭尾適當位置處將其銳製出所需齒二其 =:加，内徑有齒塾圈，從二::放 5 - |用中工之曲柄而移動至曲柄尾部之中間定 預先加工完成之具有中空螺孔且内外徑為 斤而㈣型回而尾端有螺紋之螺絲，放 型孔内，讓其螺絲齒恰㈣之㈣ 然後再將螺母與螺絲 f ®之«合’ 大概與曲柄尾部㈣，唯中門=7狀組合方式，也 成型之曲柄頭部齒型貫穿孔:塾圈部分’因為預先銳製 圈，需弈力H 罝在曲柄中間供其固定之墊 -下切面處銑出數個溝槽，以利其放入曲 1275525 柄頭部波浪齒型貫穿孔時，因其有溝槽，故已具彈性， 所以能先炎製使其變形放入曲柄頭部波浪齒型貫穿孔 時，又可恢復原狀，再將預先加工完成之具有中空螺孔 且内外徑為多齒數而尾端有㈣之螺絲，放 部之齒型孔内’讓其螺絲齒洽 、 員 此興方才容置之墊圈之齒 齧合，然後再將螺母與螺絲旋緊。 【實施方式】 請參閱第一圖係先將金屬管材，利 成為既定形狀，並在ι頭、尾 背、之方法 兩尾適當位置處將其銑製出所 品回數之波浪齒型形狀之書空 狀之貝牙孔（12、13)(如第一圖）， ^將預先加卫完成之内徑有半圓型凹齒（18)之頭部塾 圈（22)與具有中空螺孔（15)，且外徑為半㈣凸齒 尺6)而尾端有螺紋（17)之螺絲，及螺母⑺）（如 第圖）刀別放入曲柄之頭、尾波浪齒型貫穿孔⑴、 中，並將其螺絲與螺母(23)旋緊（如第三圖剖 r圖），即成為本發明，而本發明之主要創作目的為’· 白用之自仃車曲柄，業者總認為_體成型最好，所以其 加工方法就只偈限於鍛造或開_造，但是本發明之目、 的乃提供一種重量與，％ α 里#工^度夠並可以將其所需組件化之 自行車用中空曲柄（1G)(如第四圖）。 •I275525 本發明之實施方式為請參閱圖式，首先在己經加工成型 之中空曲柄（1G)上頭部適當位置處製有波浪齒型貫穿 孔（12)，及其尾部適當位置處製有波浪齒型貫穿孔 (13)，而後再將預先加工完成之内徑有半圓形凹齒 (18)之尾部墊圈（19)，從曲柄頭部波浪齒型貫穿孔 (12)放入’讓其利用中空之曲柄（1〇)之曲柄中空部 位（20)而移動至中空曲柄⑴）尾部之中，置於 中空部位（20)間定位’再將預先加工完成之具螺帽（⑷ 且有中空螺孔（15)且内外徑為半圓型凸齒（16)而尾 端有螺紋（17)之螺絲，放人於曲柄尾部之波浪歯型貫 穿=(13) β，讓其螺絲之半圓型凸齒（16)恰能與方 才容置之半圓型凹齒（18)之尾部墊圈（19)齧合，然 後=將螺母（23)與螺絲旋緊即可較。而曲柄頭部之 、、、-方式也大致上與曲柄尾部相同，唯頭部塾圈（Μ) Ρ刀□$預先銑製成型之曲柄頭部波浪齒型貫穿孔 (12)需小於頭部墊圈（22)直徑，頭部墊圈（22)方 可發揮其固定作用，所以放置在中空曲柄⑴）中間供 其固定之頭部墊圈（22)，需先在其上下切面處銳出數 個溝槽（21 )，以利其放入曲柄頭部波浪齒型貫穿孔（12) 時，其有溝槽（21)，故可具彈性，所以能先夹製使 其變形放入曲柄頭部波浪齒型貫穿孔（12)後，又可恢 8 .1275525 復原狀，使其夾置固定在曲柄中空部位處（2〇)，再將 預先加工完成之具螺帽（14)且有中空螺孔（15)且内 外徑為半圓型凸齒（16)而尾端有螺紋（⑺之螺絲， 放入於曲柄頭部波浪齒型貫穿孔（12)内，讓其螺絲半 圓型凸㈣（16)恰能與方才容置之内徑有半圓型凹齒 (18)之頭部墊圈（22)互相齧合，然後再將螺母（23) 與螺絲旋緊，即可完成本發明。 【圖式簡單說明】 第一圖係本發明未組裝元件前之中空曲柄立體圖。 第二圖係本發明之組裝元件立體圖。 第二圖係本發明之組合剖視圖。 第四圖係本發明之立體示意圖。 第五圖係本發明之上視圖 【主要元件符號說明】 【10】中空曲柄【12】頭部波浪齒型貫穿孔【13】尾部 波浪齒型貫穿孔【14】螺帽【15】螺孔【16】半圓型凸 齒【Π】螺紋【18】半圓型凹齒【19】尾部墊圈【2〇】 曲柄中空部位【21】溝槽【22】頭部墊圈【23】螺母1275525 IX. Description of invention: [Technical field to which the invention belongs] As the quality of life of human beings is now generally raised, more and more attention is paid to Hugh:: 2: Treadmills are also upgraded from sports to fitness or fitness. It is the competition of bicycles. The manufacturers of bicycles and pots and components are not as good as they are, in order to create bicycles with stronger strength and strength, but lighter weights. In order to achieve this, in addition to relying on new materials. In addition to the advancement of technology, the use of old things, the use of new processing technology, to give them a new life, is also a good way. And the creator is a professional bicycle components of the industry's invention is the use of the traditional bicycle crank Each of the combined components, which in turn becomes an assembled combined crank, makes it stronger and lighter, more convenient to process, and more cost-effective to process. [Prior Art] The crank of the former bicycle is mostly Solid metal, although strong, but cumbersome, with the bicycle gradually become the competition for competition, strong strength, light weight has become The primary goal of the car manufacturer, although the manufacturer has developed a hollow crank design, but the processing method is mostly forged or die-cast, and the crank body and the tail of the head are separately joined, and this practice The processing steps are cumbersome, and since it must be processed by splicing, the strength is obviously insufficient, and the thickness of the crank wall of 1275525 is uneven during the machining process, and the crank head and tail are connected to the body of the car and the pedal, so the crank There must be screw holes in the head and tail, so the strength is strong'. Therefore, the traditional forging or smashing type is the crank head: the actual weight of the crank will be heavier. For example, what you see in the workshop, the announcement of the approval of the Beibei Bureau Announcement (10) 846 and 478984·_ 4 are all hollow cranks formed by this traditional processing method, not only adding: the order is cumbersome 'high cost, but if the strength, weight, ease of processing, the practitioners are far worse The present invention. [Summary of the invention] The creation of the case is to first make the required position of the existing pipe head and tail to sharpen it to the required tooth 2 =: plus, the inner diameter has a ring of teeth From the second:: put 5 - | with the crank of the middle work and move to the middle of the crank tail, the pre-machined hollow screw hole with inner and outer diameter is jin and (four) type back screw with thread at the end, in the hole Let the screw teeth just (4) (4) and then the nut and the screw f ® 'close' with the crank tail (four), only the middle door = 7 combination, also formed the crank head tooth type through hole: the ring part 'Because of the pre-sharp circle, it is necessary to mill a number of grooves in the middle of the crank for the fixed pad-lower cut surface to facilitate the insertion of the wave-toothed through-hole of the 1275525 shank head. It has a groove, so it has elasticity. Therefore, it can be deformed into the wave-toothed through-hole of the crank head, and it can be restored to its original shape. The pre-machined hollow hole and the inner and outer diameters are multi-numbered. At the end, there are (4) screws, and the teeth in the toothed hole of the placing part are allowed to engage with the teeth of the washer, and then the nut and the screw are tightened. [Embodiment] Please refer to the first figure for the metal tube material to be the shape of the wave, and to cut the wave shape of the product in the appropriate position at the two ends of the method of the head, the back, and the method. Empty shell teeth (12, 13) (as shown in the first figure), ^ will be pre-guarded to complete the inner ring with semicircular concave teeth (18) inside the ring (22) and with hollow screw holes (15 ), and the outer diameter is half (four) convex tooth scale 6) and the screw with thread (17) at the end end, and the nut (7)) (as shown in the figure), the knife is placed in the head of the crank, the tail wave tooth type through hole (1), The screw and the nut (23) are screwed together (as shown in the third diagram), which is the invention, and the main creative object of the invention is '································································ The molding method is the best, so the processing method is limited to forging or opening, but the object of the present invention is to provide a bicycle with a weight and a % of the workability and the required components. Hollow crank (1G) (as shown in the fourth figure). • I275525 The embodiment of the present invention is as shown in the drawings. First, a wave tooth type through hole (12) is formed at a suitable position on the head of the hollow crank (1G) which has been formed and formed, and the tail portion is formed at an appropriate position. The wave tooth type through hole (13), and then the pre-machined inner diameter of the semicircular concave tooth (18) of the tail gasket (19), from the crank head wave tooth type through hole (12) into the 'let It is moved to the tail of the hollow crank (1) by the hollow portion (20) of the hollow crank (1 〇), and is placed between the hollow portions (20) and then pre-machined with the nut ((4) and The hollow screw hole (15) has a semi-circular convex tooth (16) and a screw with a thread (17) at the end, which is placed on the tail of the crank to form a pendulum type through = (13) β, so that the screw is semicircular. The convex tooth (16) can just mesh with the tail gasket (19) of the semicircular concave tooth (18) which is only accommodated, and then the nut (23) can be screwed tightly with the screw. , - The method is also roughly the same as the crank tail, only the head ring (Μ) Ρ knife □ $ pre-milled crank head The wave-toothed through-hole (12) needs to be smaller than the diameter of the head gasket (22), and the head gasket (22) can exert its fixing function, so the head gasket (22) is placed in the middle of the hollow crank (1) for fixing. It is necessary to sharpen a plurality of grooves (21) at the upper and lower cut surfaces so as to be inserted into the wave tooth through-holes (12) of the crank head, which has grooves (21), so that it can be elastic, so After being clamped and placed into the wave tooth type through hole (12) of the crank head, it can be restored to the shape of 8.1275525, so that it is clamped and fixed at the hollow part of the crank (2〇), and then the pre-machining is completed. The nut (14) has a hollow screw hole (15) and the inner and outer diameters are semicircular convex teeth (16) and the rear end is threaded (the screw of (7) is placed in the wave head through hole of the crank head (12) Inside, let the semi-circular convex (4) (16) of the screw be intermeshing with the head washer (22) with the semicircular concave tooth (18) inside, and then screw the nut (23) with the screw. The invention can be completed in a tight manner. [Simplified illustration of the drawings] The first figure is a perspective view of a hollow crank before the unassembled components of the present invention. The second drawing is a perspective view of the combination of the present invention. The fourth drawing is a perspective view of the present invention. The fifth drawing is a top view of the present invention [the main component symbol description] [10] hollow crank [12] Head wave tooth type through hole [13] tail wave tooth type through hole [14] nut [15] screw hole [16] semicircular convex tooth [Π] thread [18] semicircular concave tooth [19] tail gasket [ 2〇] Crank hollow part [21] Groove [22] Head washer [23] Nut