TW527254B - Method of manufacturing hollow crank of a bicycle - Google Patents
Method of manufacturing hollow crank of a bicycle Download PDFInfo
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- TW527254B TW527254B TW91109759A TW91109759A TW527254B TW 527254 B TW527254 B TW 527254B TW 91109759 A TW91109759 A TW 91109759A TW 91109759 A TW91109759 A TW 91109759A TW 527254 B TW527254 B TW 527254B
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Abstract
Description
527254 五、發明說明（1) 【本發明的詳細說明】 本發明係有關於一種腳踏車空心曲柄之製法，其係利 用一心軸及填充物，而可達其兼具快速及簡易之製程方法 ，因此其實在是一種相當具有實用性及進步性之發明，相 當值得產業界來推廣，並公諸於社會大眾。 【本發明的背景說明】527254 V. Description of the invention (1) [Detailed description of the present invention] The present invention relates to a method for manufacturing a hollow crank of a bicycle, which uses a mandrel and a filler to achieve a fast and simple process method. Therefore, In fact, it is a very practical and progressive invention, which is worthy of being promoted by the industry and being made public. [Background of the invention]
一般腳踏車之曲柄主要係為踏板與齒盤之連動裝置， 因此其在使用上必需兼固有耐用、穩固及輕便使用之特點 ，也因此在曲柄的製法改良方面便是自行車業界長久以來 不斷努力之處，而眾所皆知曲柄於使用上，為使其可更輕 便因此便有一種空心曲柄的產生，而習用之空心曲柄之製 法，請參閱附件一所示（附件一係台灣專利申請案號第8 6119694號「自行車用中空曲柄及其製造方法」） ，由附件一中可得知其主要係於鑄造過程中，利用砂芯注 入中空模中，使其成形一具中空之曲柄，然後待其成形後 再利用其開口處將填充物予以取出，然由於其取出之過程 較為煩複，因此使得此種製程顯得相當不符合產業上之利 用性，有鑑於此，本發明人乃積極開發研究，期能發明一 種腳踏車空心曲柄之製法，而能改進一般市面上傳統之製 程，並使其可兼具中空曲柄輕便之優點且又可簡化其製程 上步驟，並使其製程更具實用性，而終於在不斷的開發研 究下，本發明人基於從事此類產品製造多年之經驗，終於 設計出本發明之腳踏車空心曲柄之製法，而可以嘉惠所有 的消費者及業界。Generally, the crank of a bicycle is mainly a linkage device between a pedal and a toothed disc. Therefore, it must be inherently durable, stable and lightweight in use. Therefore, the bicycle industry has been making continuous efforts in improving the crank method. And the well-known crank is used. In order to make it lighter, a hollow crank has been produced. For the manufacturing method of the conventional hollow crank, please refer to Annex 1. (Annex 1 is the Taiwan Patent Application No. 8 6119694 "Hollow crank for bicycles and its manufacturing method"), it can be known from Annex I that it is mainly in the casting process, using a sand core to inject into the hollow mold to form a hollow crank, and then wait for it After forming, the filler is taken out from the opening to remove it. However, the process of taking it out is tedious, which makes this process quite unsuitable for industrial applicability. In view of this, the inventors are actively developing research. It is hoped to invent a method for manufacturing a hollow crank of a bicycle, which can improve the traditional manufacturing process on the market and allow it to have both hollow cranks. The advantage of lightness can also simplify the steps in its process and make its process more practical. Finally, under continuous development and research, the inventor finally designed the bicycle of the present invention based on years of experience in manufacturing such products. The manufacturing method of hollow crank can benefit all consumers and the industry.
第5頁 527254 五、發明說明（2) 一 【本發明的發明目的】 本發明的主要目的係在於使習用之腳踏車空心曲柄之 製法，於製造上可兼固步驟簡易及快速製程之優點； 本發明之次要目的係在於使利用一種更具功效之製程 方法，而可製造出一種兼具耐用及輕便之中空曲柄； 因此其總體來講，本發明可說是相當具有進步性，且 可以稱為相當突破的一種發明，且具有產業上的利用價值 〇 【本發明之實施例詳細說明】Page 5 527254 V. Description of the invention (2)-[Inventive object of the present invention] The main purpose of the present invention is to make the conventional method of making a bicycle hollow crank, which can combine the advantages of simple steps and rapid process in manufacturing; The secondary purpose of the invention is to make use of a more efficient process method to produce a durable and lightweight hollow crank; therefore, in general, the present invention can be said to be quite progressive and can be called It is a breakthrough invention and has industrial value. [Detailed description of the embodiment of the present invention]
本發明係有關於一種腳踏車空心曲柄之製法，請參閱 第一圖所示，這種腳踏車空心曲柄之製法主要係包括： 1 、置入金屬材（10)於初胚模具（40)中； 2、 預熱該金屬材（10); 3、 將心軸（2 0 )置入於初胚模具（4 0 )中，並 於初胚模具（4 0 )内部形成有空隙部（2 1); 4、 成形一具空心曲柄之初胚； 5、 取出心軸（2 0 )，並於空心部置入填充物（3 0 ); 6、 沖壓成形，並取出填充物（3 0 )；The present invention relates to a method for manufacturing a hollow crank of a bicycle, as shown in the first figure. The method for manufacturing a hollow crank of a bicycle mainly includes: 1. placing a metal material (10) in a preform mold (40); 2 Preheat the metal material (10); 3. Place the mandrel (2 0) in the preform mold (40), and form a void (2 1) inside the preform mold (40); 4. Form a primary embryo with a hollow crank; 5. Take out the mandrel (20) and put the filler (30) in the hollow part; 6. Press forming and take out the filler (30);
7、 將開口部（5 0 )再次沖壓，並攻孔； 如上述，而為本發明之主要步驟，茲再將其細部作一 說明，請參閱第二圖至第五圖所示，其中當將金屬材（1 0 )完成預熱後所置入之心軸（2 0 )，其恰位於初胚模 具（4 0 )之中央部，心軸（2 0 )之外緣並與初胚模具7. The opening (50) is punched again and tapped. As mentioned above, this is the main step of the present invention, and the details are described below. Please refer to the second to fifth figures. The mandrel (20) placed after the metal material (10) is preheated is located at the center of the preform mold (40), the outer edge of the mandrel (20), and the preform mold
第6頁 527254 五、發明說明（3) 0' (4 0 )之内部形成有空隙部（2 1 )，如此再使預熱後 之金屬材（1 0)融化並充滿於空隙部（2 1 )内而可完 成其空心曲柄之初胚，如此再取出心軸（2 0 )，並對空 心曲柄之初胚予以沖壓，然為防止其沖壓過程中，因其曲 柄之空心亦造成曲柄變形，因此可再於其空心部置入具塑 性之填充物（3 0 )如：橡膠、優力膠…等等，如此待完 成外形之沖壓後，可直接將填充物（3 0 )取出，並再利 用沖壓將其開口部（5 0 )形成密合狀並形成一扎實部， 最後再攻孔，即可順利完成，請參閱第六圖及第七圖所示Page 6 527254 V. Description of the invention (3) A void portion (2 1) is formed inside 0 '(4 0), so that the preheated metal material (1 0) is melted and filled in the void portion (2 1) ) Can complete the initial embryo of its hollow crank, and then take out the mandrel (20), and punch the original embryo of the hollow crank, but in order to prevent the crank from deforming due to the hollow of the crank during the stamping process, Therefore, plastic fillers (30), such as rubber, urethane, etc. can be placed in the hollow part. After the stamping of the shape is completed, the fillers (30) can be directly taken out, and then The opening part (50) is formed into a tight shape and a solid part is formed by pressing. Finally, the hole can be tapped, and it can be successfully completed. Please refer to the sixth and seventh figures.
〇 由上可知，本發明之製程中，其僅需利用一心軸（2 0)並搭配預熱完成後之金屬材（1 0)即可完成其空心 部，因此其製程簡易且毋須其它手續即可完成，相當符合 產業上之利用性。〇 As can be seen from the above, in the manufacturing process of the present invention, it only needs to use a mandrel (20) and the preheated metal material (10) to complete its hollow portion, so its manufacturing process is simple and no other procedures are required. Can be completed, which is quite in line with industrial applicability.
因此由以上所述之腳踏車空心曲柄之製沬，可知本發 明完全沒有習用空心曲柄之製程所產生的缺失，而且可以 使得腳踏車空心曲柄之製法更加實用，因此本發明之腳踏 車空心曲柄之製法具有相當之進步性，且具有產業上的利 用價值，為使 貴審查委員更能了解到本發明所能達到的 功效及價值性，茲就以上之論點加以論述： 1 、本發明之腳踏車空心曲柄之製法，其製程主要係 利用心軸及填充物所完成； 2、本發明之腳踏車空心曲柄之製法，其係利用一心 轴而可以達到製造空心曲柄之功效，其改善了習用之製程Therefore, from the manufacturing of the hollow crank of the bicycle described above, it can be seen that the present invention has no shortage of the conventional hollow crank manufacturing process, and can make the manufacturing method of the hollow crank of the bicycle more practical. Therefore, the manufacturing method of the hollow crank of the bicycle has considerable In order to make your reviewers better understand the efficacy and value of the present invention, the following points are discussed: 1. The method for manufacturing the hollow crank of a bicycle according to the present invention The manufacturing process is mainly completed by using a mandrel and a filler. 2. The method for manufacturing a hollow crank of the bicycle of the present invention uses a mandrel to achieve the effect of manufacturing a hollow crank, which improves the conventional manufacturing process.
第7頁 527254 五、發明說明（4) ·、 過程較為煩複之缺點； 3、 本發明之腳踏車空心曲柄之製法，其所設之填充 物可以達到防止沖壓過程中變形之功效； 4、 本發明之腳踏車空心曲柄之製法，其所使用之方 法因可以更具功效，所以來講其製程設計相當用心且能達 到穩固實用的目的，實是習用之製程所無法比擬之發明， 其對本業界來講可說是一種劃時代之突破。Page 7 527254 V. Description of the invention (4) · Disadvantages of relatively complicated process; 3. The manufacturing method of the hollow crank of the bicycle of the present invention, the filling material provided can achieve the effect of preventing deformation during the stamping process; 4. The invention of the bicycle crank crank manufacturing method, because the method used can be more effective, so its process design is quite attentive and can achieve the purpose of stability and practicality, it is an invention incomparable to the conventional manufacturing process. It is an epoch-making breakthrough.
綜上所述，本發明腳踏車空心曲柄之製法在使用實用 性及成本效益上，確實是完全符合產業上發展所需，且所 揭露之方法發明亦是前所未有之創新，所以具有『新穎性 』應無疑慮。 所以經由以上之所述，可知本發明之製程確比以前之 製程更用心，且更具『實用性』，其所具有之獨特特徵以 及功能亦遠非習用製程所能比擬，所以其確實比之習用的 更具有其『進步性』，且完全未見於公開之刊物上，更符 合『新穎性』的規定，其完全符合我國專利法有關發明專 利之申請要件的規定’乃依法提起專利申請’並敬請 釣 局早曰審查，並給予肯定，以能嘉惠所有大眾消費者。To sum up, the method of manufacturing the hollow crank of the bicycle of the present invention is indeed completely in line with the needs of industrial development in terms of practicability and cost-effectiveness, and the disclosed method invention is also an unprecedented innovation, so it has a "newness" application. No doubt about it. Therefore, according to the above, it can be known that the process of the present invention is indeed more intentional and more "practical" than the previous process. Its unique characteristics and functions are far from comparable to conventional processes, so it is indeed comparable to The conventional ones are more "progressive" and have not been found in published publications. They are more in line with the "novelty" requirements. They are fully in line with the requirements of China's patent law on application requirements for invention patents. I would like to ask the Diaoyu Bureau to review and affirm it in order to benefit all consumers.
第8頁 527254 圖式簡單說明 [ 圖 式 的 輔 助 說 明 ] 本 發 明 的 較 佳 實 施 例 可 以 配 合 所 附 的 圖 式 而 作 • 更 加 詳 細 的 說 明 俾 使 審 查 委 員 對 於 本 發 明 可 以 獲 致 更 進 一 步 之 瞭 解 其 中 • A 9 主 要 元 件 符 就 說 明 • 1 0 金 屬 材 2 0 心 軸 2 1 空 隙 部 3 0 填 充 物 4 0 初 胚 模 具 5 0 開 D 部 B 9 圖 示 編 號 說 明 • 第 一— 圖 係 本 發 明 腳 踏 車 空 心 曲 柄 製 法 之 模 具 剖 面 示 意 圖 第 —1 — 圖 係 本 發 明 腳 踏 車 空 心 曲 柄 之 製 法 中 9 將 心 軸 置 入 模 具 時 之 剖 面 圖 ; 第 __ 圖 係 本 發 明 腳 踏 車 空 心 曲 柄 之 製 法 中 y 將 填 充 物 置 入 曲 柄 空 心 部 之 剖 面 圖 ； 第 四 圖 係 本 發 明 腳 踏 車 空 心 曲 柄 之 製 法 中 J 完 成 沖 壓 後 之 剖 面 圖 第 五 圖 係 本 發 明 腳 踏 車 空 心 曲 柄 之 製 法 中 ， 完 成 攻 孔 後 之 剖面圖； 第六圖係本發明腳踏車空心曲柄之製成後之外觀示意圖； 以及 第七圖係本發明腳踏車空心曲柄之製成後之立體圖。Page 8 527254 Brief description of the drawings [Auxiliary explanation of the drawings] The preferred embodiment of the present invention can be made in conjunction with the attached drawings. • More detailed descriptions, so that the reviewers can get a better understanding of the present invention. • A 9 main components are explained • 1 0 metal material 2 0 mandrel 2 1 void portion 3 0 filling 4 0 preform mold 5 0 opening D portion B 9 illustration number description • first—picture is the bicycle of the present invention Schematic diagram of the mold cross section of the hollow crank manufacturing method No. 1 — Figure is a cross-sectional view when the mandrel is inserted into the mold in the method of manufacturing the hollow crank of the bicycle of the present invention; A sectional view of the hollow portion of the crank; the fourth figure is a pedal of the present invention In the manufacturing method of the hollow crank, J is a sectional view after the punching. The fifth figure is a sectional view of the bicycle crank of the present invention after the tapping is completed. The sixth view is a schematic view of the appearance of the bicycle crank of the present invention after the punching is completed; And the seventh figure is a perspective view after the hollow crank of the bicycle of the present invention is manufactured.
第9頁Page 9
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW91109759A TW527254B (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing hollow crank of a bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW91109759A TW527254B (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing hollow crank of a bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW527254B true TW527254B (en) | 2003-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW91109759A TW527254B (en) | 2002-05-10 | 2002-05-10 | Method of manufacturing hollow crank of a bicycle |
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| Country | Link |
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| TW (1) | TW527254B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11142280B2 (en) | 2016-03-24 | 2021-10-12 | The Hive Global, Inc. | Bicycle crank with spindle attachment structure |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
| US12030586B2 (en) | 2021-07-12 | 2024-07-09 | The Hive Global, Inc. | Seal for bicycle crank with differential chainring motion |
-
2002
- 2002-05-10 TW TW91109759A patent/TW527254B/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11485449B2 (en) | 2015-09-01 | 2022-11-01 | The Hive Global, Inc. | Bicycle cassette with locking connection |
| US11142280B2 (en) | 2016-03-24 | 2021-10-12 | The Hive Global, Inc. | Bicycle crank with spindle attachment structure |
| US11351815B2 (en) | 2017-08-21 | 2022-06-07 | The Hive Global, Inc. | Bicycle cassette with clamping connection |
| US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
| US12030586B2 (en) | 2021-07-12 | 2024-07-09 | The Hive Global, Inc. | Seal for bicycle crank with differential chainring motion |
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