201113186 六、發明說明： 【發明所屬之技術領域】 . 本發明係關於一種管製一體成型自杆电义 j平刖又官及其製 程，尤指製作一種可降低其重量與材料成 ' 管。 _中空前叉 【先前技術】 一般自行車的轉向機構主要包括一前又與—轉向管， 該前叉中央形成有一肩部，肩部的兩相對側分別朝方 鲁向彎折形成有一外管，該外管係與自行車之前輪相接該 轉向管的-端固接於前又肩部處，另—端設有把手以供： 乘者控制及操作該轉向機構及前輪之用。 ° 其中’由於該前叉（特別是肩部處）_#面需要承受地 面透過車輪施予該前又的衝擊力，另—方面還要承受騎乘 者透過把手與轉向管帶動前又與車輪的轉向力，因此，在 現有之以-體成型方式製作該前叉的技術中，雖然可為了 減輕前又的重量而選用輕質材料製作，但仍需成；為實心 桿體以兼顧其結構強声，尤嫌 降低程度實在有Γ 的下’該前又重量的 型方2外路如台灣公告編號第546226號「無缝車架之成 「'」X明專利案，以及如台灣證書號數第號 何：架管件超塑成型製法」發明專利案所示，均係揭露如 本：二連串的步驟來成型出中空車架管。惟，前又除了 4呈。型之管體外在地面的衝擊力 的轉向力作用之^ 而上 、、肩部的結構強度還需要特別加強， ’…案所教示之方法僅能成型出管壁厚度一致的中 201113186 空長型官體，以作為組成自行車 其 ,, 千朱的g材’並1法制从 成型出可供利用之前又。 …氣作 又，在另-種現有技術之前又的製作方式中 別製作該肩部與二外管，使該肩 ’、、 M ^ ^ , 具足夠結構強度的 塊體該外官則呈一中空管體後，涵^ 1Λ ^ 1 Ο二個構件組合而 成則又’以達到減輕該前又重量的 堂亜料如此一來更 而要對母一剛又的各構件個別進行組 步驟及費用’導致生產效率低落。 HU的組裝 改進I:所述’現有技術之前又的製作方式實有待進-步 改進之處。 ^ 【發明内容】 有鏗於前述現有技術的不足， ^ Λ ώΑ 本發明提供一種管製— =!订車前又管的製程，希藉此製程達到進-步減輕 ::車…重量，同時兼顧前叉管肩部之結構強度的目 為了達到上述的發明目的，本發 +贫明所利用的技術手段 係令該一體成型方式製作中空前 進行. ^耵裂程依序對一管體 一抽厚薄管步驟，由管體 ^, . L 徂伸該官體，而於管 體_#又處形成一肩部雛型段於 於該肩部離型段與管體兩端 間刀別形成一外管離型段； 一縮管步戰’由管體外管雛型段之外環壁進行壓縮， 以逐漸縮小該外管雛型段的管徑； =置彎管步驟’將該管體之外管離型段由靠近肩部 離m衛接端處分別相對該肩部離型段朝同一方向進 201113186 行彎折； 一模具成型步驟，將該管體置於一模具中，再由缺 之開口端處灌入高壓流體，使整根管體之肩部離型段=體 管離型段貼合於模具之内壁，從而一體成型 外 溶„ ，甲空前又 前述模具成型步驟之後可進一步包含有—管材加 驟，其係在該前又管之一肩部的中央處頂面與底面上 貫穿其管壁而形成有相對應的一上結合孔與一下結合孔。201113186 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a control integrated molding device and a process thereof, in particular to produce a tube which can reduce its weight and material. _ hollow front fork [Prior Art] The steering mechanism of a bicycle generally includes a front and a steering tube. The front fork is formed with a shoulder at the center, and the opposite sides of the shoulder are respectively bent toward the square to form an outer tube. The outer tube is connected to the front wheel of the bicycle. The end of the steering tube is fixed at the front and the shoulder, and the other end is provided with a handle for: the occupant controls and operates the steering mechanism and the front wheel. ° Where 'Because the front fork (especially at the shoulder) _# face needs to withstand the impact of the ground through the wheel, the other side must also bear the rider and the steering tube before the wheel and the wheel The steering force, therefore, in the existing technique of manufacturing the front fork by the body-forming method, although it can be made of a lightweight material in order to reduce the weight of the front, it still needs to be formed; it is a solid rod to take into consideration its structure. Strong voice, especially the degree of reduction is really awkward. 'The former weight of the type 2 outside the road, such as Taiwan Bulletin No. 546226, "Seamless frame made "" X Ming patent case, and such as Taiwan certificate number The number No.: The superplastic forming method for pipe fittings, as shown in the invention patent case, is revealed as follows: two series of steps to form a hollow frame tube. However, before the 4 is presented. The steering force of the impact force on the ground outside the tube is the upper and the structural strength of the shoulder. It needs to be specially strengthened. The method taught in the case can only form the medium thickness of the wall with the uniform thickness of the 201113186. The official body, as a composition of the bicycle, it, the material of the Thousand Zhu's and the 1 legal system from the formation before being available for use. In addition, in the production method before the other prior art, the shoulder and the second outer tube are not made, so that the shoulder ', M ^ ^, the block with sufficient structural strength is the outer officer. After the hollow pipe body, the two members of the culvert ^1Λ ^ 1 组合 are combined to achieve the goal of reducing the weight of the front and the weight. Therefore, the individual components of the mother and the other components are separately grouped. And the cost' leads to low productivity. Assembly of the HU Improvement I: The prior art production method of the prior art has to be improved. ^ [Summary of the Invention] In view of the above-mentioned deficiencies of the prior art, ^ Λ ώΑ The present invention provides a control - =! process before the car is ordered, and the process is achieved by the process: the weight of the car: In order to achieve the above-mentioned object of the invention, the technical means used in the present invention is to make the one-piece molding method before the hollowing is made. The 耵 耵 依 依 对 对 一 一 一 一 一 一In the tube step, the body body is extended by the tube body, and the body body is formed, and a shoulder portion is formed in the tube body _#, and the shoulder portion is formed between the shoulder portion and the tube body. The tube is separated from the section; the tube is compressed by the outer wall of the tube outside the tube to gradually reduce the diameter of the tube of the outer tube; = the step of bending the tube 'outside the tube The tube-off section is bent from the shoulder to the m-guard end and into the same direction in the same direction with respect to the shoulder-off section; a mold forming step, the tube is placed in a mold, and then the missing portion The high-pressure fluid is poured into the open end, so that the shoulder of the whole pipe body is separated from the section = the body pipe is attached to the section The inner wall of the mold is integrally molded and dissolved, and the mold forming step may further include a tube adding step, which is inserted through the tube on the top surface and the bottom surface of one of the shoulder portions of the front tube. The wall is formed with a corresponding upper and lower coupling holes.
則述縮官步驟與前置彎管步驟間可進一步包含有—壓 型步驟’纟由該管體之外管離型段外環壁的兩相對側對該 外管雛型段進行沖壓成型。 本發明的優點在於，在該一體成型製作而成的中空前 又管中，肩部會比外管具有更高的結構強纟，以承受地面 透=車輪施予該前又管的衝擊力以及騎乘者透過把手與轉 向&帶動前叉管與車輪的轉向力’故可順利達到降低自行 車前又管之重量而減輕騎乘者負擔的目的，同時還可 降低組裝及材料成本。 【實施方式】 义參見第-及二圖所示’本發明之管製一體成型自行， 則又g的製程係先取一具適當長度且管壁具適當厚度的中 空官體（10)，並依序進行—抽厚薄管步驟、一縮管步驟' 4H置f管步驟、—模具成型步驟及一管# 加工步驟，其中： 配合參見第二圖所示’在抽厚薄管步驟中，係由管體（1〇) 的兩端以抽拉方式延伸拉長該管體（10)，而於管體（10)中 201113186 段處形成-肩部離型段⑴），於該肩部雛型段⑴）與管體 (1〇)兩端間分別形成一外管雛型段(12)，其中由於該夕卜 雛型段（12)經過拉伸，故外管離型段（12)的管壁厚度會二 於肩部離型段（11)的管壁厚度； 配合參見第四圖所示，在縮管步驟中，係由管體 外管雛塑段（12)之外環壁進行壓縮，以逐漸縮小該外管離 型段〇2)的管a，並使每-外管雛型段（12)由靠近肩部離 !奴（1 1)的一銜接端（1 21)到遠離肩部離型段〇 1)另一開口Further, the step of shrinking and the step of bending the front tube may further comprise a step of pressing - the outer section of the outer tube of the outer tube of the outer tube of the tube is stamped and formed. An advantage of the present invention is that in the integrally formed hollow front tube, the shoulder portion has a higher structural strength than the outer tube to withstand the ground penetration = the impact force applied by the wheel to the front tube and The rider's handle and steering & drive the steering force of the front fork tube and the wheel can smoothly reduce the weight of the bicycle before the bicycle and reduce the burden on the rider, while reducing the assembly and material costs. [Embodiment] For the meaning of the first and second figures, the control unit of the present invention is self-contained, and the process of g is first to take a hollow body (10) of appropriate length and a suitable thickness of the pipe wall, and The sequence is carried out - a thick thin tube step, a shrink tube step '4H set f tube step, a mold forming step and a tube # processing step, wherein: the fit is shown in the second figure, in the step of drawing the thin tube, the tube is The two ends of the body (1〇) are stretched and extended to lengthen the pipe body (10), and in the pipe body (10), a shoulder-shaped segment (1) is formed at the section 201113186, and the shoulder portion is formed in the shoulder portion (1)) forming an outer tube blank section (12) between the two ends of the pipe body (1〇), wherein the pipe of the outer pipe off-type section (12) is stretched due to the stretched section (12) The thickness of the wall will be equal to the thickness of the wall of the shoulder segment (11); as shown in the fourth figure, in the shrinking step, the outer wall of the outer tube (12) of the tube is compressed. To gradually reduce the tube a of the outer tube release section ) 2), and to make the outer-outer tube prototype section (12) away from the shoulder (1 1) from the shoulder (1 1) The release unit 1 square section) another opening
端（122)間形成管徑漸縮之型態，而具有流線狀的外型:此 時’該外管離型段（12)之管壁厚度會較進行完抽厚薄管步 驟後之管壁厚度略為增厚； 配合參見第五圖所示，在壓型步驟中，係由該管體⑽ 之外管離型段（12)外環壁的兩相對_該外管離型段（12) 進行沖壓成型，使料f _段（12)成㈣具㈣形斷面 之管件； 配合參見第六圖所示’在前置脊管步驟中，係將該管 體⑽之外管雛型段（12)由其銜接端（121)處分別相對該肩 部雛型段（1彳）朝同一方向進行·彎折； 配合參見第七及八圖所示’在模具成型步驟中，係將 該管體⑽置於—模具⑽）中，再由管體（10)之外管雛型段 (12)的開π端（122)灌入高壓流體（例如：高壓氣體或高壓 液體），使整根管體（1Q)之肩部雛型段⑴）與外㈣型段（12) 貼合於模具之内壁，從而-體成型為-中空前又管(20), 並使前㈣料型段⑴）形成該前又管㈣之㈣（21)，前 述外管離型段（12)則形成該前又管（2〇)之外管（22); 201113186 配合參見第九圖所示，在管件加工步驟 叉管（20)之肩部（21)的中央處， 係在該則 丁犬慝，於頂面與底面上分 其管壁而形成有相對應的—上結合孔（23)與—下結 (24)，以供與_自行車之轉向管相互結合之用。 σThe end (122) forms a tapered shape, and has a streamlined shape: at this time, the thickness of the wall of the outer tube (12) is higher than that after the step of thinning the thin tube. The thickness of the wall is slightly thickened; as shown in the fifth figure, in the molding step, the two opposite sides of the outer ring wall of the outer tube (12) of the tube (10) are outside the tube (12) The stamping is carried out so that the material f _ section (12) is formed into a (four) tube with a (four) section; as shown in the sixth figure, in the step of the front spine, the tube body (10) is shaped outside the tube. The segment (12) is bent and bent in the same direction from the joint portion (1) of the shoulder portion (121); as shown in the seventh and eighth figures, in the mold forming step, The tube body (10) is placed in the mold (10), and then the high pressure fluid (for example, high pressure gas or high pressure liquid) is poured into the open π end (122) of the tube draft section (12) outside the tube body (10). The shoulder section (1)) and the outer section (4) of the whole pipe body (1Q) are attached to the inner wall of the mold, so that the body is formed into a hollow front tube (20), and the front (four) material type is formed. Segment (1)) The front tube (4) (4) (21), the outer tube release section (12) forms the front tube (2 〇) outer tube (22); 201113186, as shown in the ninth figure, in the tube processing step The center of the shoulder (21) of the fork pipe (20) is attached to the wall of the canopy, and the upper and lower surfaces of the fork tube are formed with corresponding upper-upper holes (23) and lower nodes. (24) for the purpose of combining with the steering tube of the bicycle. σ
經由上述各加工步驟所一體成型製成的中 (2〇)，可使其肩部（21)比外f (22)具有更高的結構強产，二 =地面透過車輪施予該前又管(2〇)的衝擊力，以：騎乘 、過把手與轉向管帶動前叉管(2〇)與車輪的轉向力，順 利達到降低自订車前又管之重量，進而減輕騎乘者負擔的 目的，同時還可降低組裝及材料成本。 ° 【圖式簡單說明】 第一圖為本發明之步驟流程圖。 第一圖為本發明於加工前之侧視剖面圖。 第三圖為本發明於進行抽厚薄管步驟後之侧視剖面 第四圖為本發明於進型縮管步驟後之侧視剖面圖。 第五圖為本發明於進行壓型步驟後之側視圖。 第六圖為本發明於進行前置彎管步驟後之側視圖。 第七圖為本發明於進行模具成型步驟時之側視圖。 第八圖為本發明於進行模具成型步驟後之立體外觀 第九圖為本發明於進行管件加工步驟後之立體外觀 【主要元件符號說明】 201113186 (10)管體 (12)外管雛型段 (122)開口端 (21)肩部 (23)上結合孔 (30)模具 (1 1)肩部雛型段 (121)銜接端 (20)前叉管 (22)外管 (24)下結合孔The middle (2〇) integrally formed through the above various processing steps can make the shoulder (21) have a higher structural strength than the outer f (22), and the second floor is applied to the front through the wheel. The impact force of (2〇) is: riding, passing the handle and the steering tube to drive the steering force of the front fork tube (2〇) and the wheel, smoothly reducing the weight of the tube before the custom vehicle, thereby reducing the burden on the rider The purpose is also to reduce assembly and material costs. ° [Simplified description of the drawings] The first figure is a flow chart of the steps of the present invention. The first figure is a side cross-sectional view of the invention prior to processing. The third figure is a side cross-sectional view of the present invention after the step of thinning the thin tube. The fourth figure is a side cross-sectional view of the present invention after the step of shrinking the tube. The fifth figure is a side view of the present invention after the molding step. Figure 6 is a side elevational view of the present invention after the pre-bending step. Figure 7 is a side elevational view of the present invention as it is subjected to a mold forming step. The eighth figure is the three-dimensional appearance of the present invention after the mold forming step. The ninth figure is the three-dimensional appearance of the present invention after the pipe processing step [main component symbol description] 201113186 (10) pipe body (12) outer pipe prototype section (122) Open end (21) shoulder (23) upper joint hole (30) mold (1 1) shoulder cut section (121) joint end (20) front fork tube (22) outer tube (24) under the joint hole