CN201080232Y - Rear frame of bicycle - Google Patents

Abstract

The rear frame of bicycle includes two long pipes made of fiber reinforced material and one connecting part connected between the two long pipes, and the long pipes have at least one ribbed plate to raise the overall structural strength and reduce weight.

Description

Translated fromChinese

自行车的后车架bicycle rear frame

技术领域technical field

本实用新型是与自行车有关，特别是指一种自行车的后车架，其机械强度高且重量轻。The utility model relates to bicycles, in particular to a bicycle rear frame, which has high mechanical strength and light weight.

背景技术Background technique

一般自行车的后车架包含有后叉与下叉，两者的结构大致相同，均包含有二略呈平行的管部，以及一位于该二管部之间的连接部，为减轻重量，目前已有业者采用碳纤维补强材料来制造后车架，组装时，后叉与下叉是用以供后车轮接设，因此，必须承受来自后车轮的震动，长期使用容易造成结构的损伤，特别是管部常发生断裂、开叉等状况，若为改善结构强度，则需添加纤维织布的用量，此举又会增加整体的重量。The rear frame of a general bicycle includes a rear fork and a lower fork, both of which have roughly the same structure, and both include two slightly parallel pipe parts and a connecting part between the two pipe parts. The industry has used carbon fiber reinforced materials to manufacture the rear frame. When assembling, the rear fork and the lower fork are used to connect the rear wheels. Therefore, they must withstand the vibration from the rear wheels. Long-term use is likely to cause structural damage, especially The tube part often breaks, splits, etc. To improve the structural strength, it is necessary to increase the amount of fiber weaving, which will increase the overall weight.

实用新型内容Utility model content

本实用新型的一目的在于提供一种自行车的后车架，不仅重量轻且机械强度高。One purpose of the utility model is to provide a rear frame of a bicycle, which is not only light in weight but also high in mechanical strength.

为达成前揭目的，本实用新型所提供一种自行车的后车架，其特征在于，是包含有：In order to achieve the purpose of exposing, the utility model provides a rear frame of a bicycle, which is characterized in that it includes:

二长管，是由纤维补强材料制成；以及Two long tubes, made of fibre-reinforced material; and

一连接部，接设于该二长管之间；a connecting portion connected between the two long pipes;

其中，该长管内具有至少一肋板。Wherein, the long tube has at least one rib inside.

其中该肋板的数目为一个，该长管内部被该肋板分成二容室。Wherein the number of the rib is one, and the interior of the long tube is divided into two chambers by the rib.

其中该二长管实质上位于同一平面，该肋板实质上平行于该平面。Wherein the two long tubes are substantially on the same plane, and the rib is substantially parallel to the plane.

其中该二长管实质上位于同一平面，该肋板实质上垂直于该平面。Wherein the two long tubes are substantially on the same plane, and the rib is substantially perpendicular to the plane.

其中该肋板的数目为三个，分别由该长管的内壁向内延伸而出并汇聚于一线，该长管内部被该等肋板分成三容室。Wherein the number of the ribs is three, respectively extending inward from the inner wall of the long tube and converging on a line, and the inside of the long tube is divided into three chambers by the ribs.

其中该肋板的数目为四个，分别由该长管的内壁向内延伸而出并汇聚于一线，该长管内部被该等肋板分成四容室。Wherein the number of the ribs is four, respectively extending inward from the inner wall of the long tube and converging on a line, and the interior of the long tube is divided into four chambers by the ribs.

其中该连接部是一管体。Wherein the connecting part is a pipe body.

其中该管体内设有发泡心材。Wherein the tube body is provided with a foaming heart material.

本实用新型的有益效果是：The beneficial effects of the utility model are:

本实用新型的自行车的后车架，不仅重量轻且机械强度高。The rear vehicle frame of the bicycle of the utility model is not only light in weight but also high in mechanical strength.

附图说明Description of drawings

为了详细说明本实用新型的构造及特点所在，以下结合五较佳实施例并配合附图说明如后，其中：In order to explain in detail the structure and characteristics of the present utility model, below in conjunction with five preferred embodiments and with accompanying drawings, the description is as follows, wherein:

图1是本实用新型第一较佳实施例的正视图；Fig. 1 is the front view of the first preferred embodiment of the utility model;

图2是图1沿2-2方向的剖视图；Fig. 2 is a sectional view along the direction 2-2 of Fig. 1;

图3是图1沿3-3方向的剖视图；Fig. 3 is a sectional view along the direction 3-3 of Fig. 1;

图4本实用新型第二较佳实施例的剖视图；Fig. 4 is a sectional view of the second preferred embodiment of the utility model;

图5本实用新型第三较佳实施例的剖视图；Fig. 5 is a sectional view of the third preferred embodiment of the utility model;

图6本实用新型第四较佳实施例的剖视图；Fig. 6 is a sectional view of the fourth preferred embodiment of the utility model;

图7本实用新型第五较佳实施例的剖视图。Fig. 7 is a sectional view of the fifth preferred embodiment of the utility model.

具体实施方式Detailed ways

请参阅图1至图3，本实用新型第一较佳实施例所提供的自行车的后车架10是包含有二长管20与一连接部30，该后车架10可为后叉或下叉，用以连接自行车的座管与后轮。Referring to Fig. 1 to Fig. 3, therear frame 10 of the bicycle provided by the first preferred embodiment of the present utility model includes twolong tubes 20 and a connectingportion 30, and therear frame 10 can be a rear fork or a lower The fork is used to connect the seat tube of the bicycle to the rear wheel.

该二长管20是由纤维补强树脂制成，纤维可采用而不限于碳纤维、玻璃纤维、硼纤维或克维拉(Kevlar)纤维，树脂可为热固性树脂或热塑性树脂，该二长管20大致上位于同一平面P，各该长管20内分别具有一肋板22，该长管20内部被该肋板22分成二容室24，该肋板22约垂直于该平面P。The twolong tubes 20 are made of fiber-reinforced resin, the fiber can be used without limitation to carbon fiber, glass fiber, boron fiber or Kevlar (Kevlar) fiber, the resin can be thermosetting resin or thermoplastic resin, the twolong tube 20 Generally located on the same plane P, each of thelong tubes 20 has arib 22 inside, the inside of thelong tube 20 is divided into twochambers 24 by therib 22, and therib 22 is approximately perpendicular to the plane P.

该连接部30则接设于该二长管20之间，用以将该二长管20连接在一起，该连接部30是一由纤维补强树脂制成的管体，实际制造时，是先将二长管20硬化成型，接着利用预浸树脂的纤维织布卷绕成一管状的连接件32，将该连接件32置于二长管20之间，接着利用一预浸树脂的纤维织布34将该连接件32与该二长管20包覆起来，再加热硬化成型，即可于该二长管20之间形成该连接部30。The connectingportion 30 is connected between the twolong pipes 20 to connect the twolong pipes 20 together. The connectingportion 30 is a pipe body made of fiber-reinforced resin. In actual manufacture, it is Firstly, the twolong tubes 20 are hardened and formed, and then atubular connector 32 is wound with a resin-impregnated fiber cloth, and theconnector 32 is placed between the twolong tubes 20, and then a resin-impregnated fiber cloth is used to form atubular connector 32. Thecloth 34 wraps the connectingpiece 32 and the twolong tubes 20 , and then heats and hardens to form the connectingportion 30 between the twolong tubes 20 .

由该肋板22可大幅增加该长管20的机械强度，使该长管20可承受更大的外力，特别是来自垂直该平面P的外力，因此，无须增加纤维补强树脂的用量，即可加强后车架10整体结构的机械强度，或者，使用较少的材料即可达到所需的结构强度，使本实用新型提供的后车架10兼具机械强度高与重量轻的优点，可改善已知结构的缺点，并达成本实用新型的目的。Theribs 22 can greatly increase the mechanical strength of thelong tube 20, so that thelong tube 20 can bear greater external force, especially from the external force perpendicular to the plane P, therefore, there is no need to increase the amount of fiber-reinforced resin, that is, The mechanical strength of the overall structure of therear frame 10 can be strengthened, or the required structural strength can be achieved by using less material, so that therear frame 10 provided by the utility model has the advantages of high mechanical strength and light weight, and can Improve the shortcomings of the known structure, and achieve the purpose of the utility model.

基于本实用新型的精神，该肋板22的形状具有多种变化方式，如图4所示，是本实用新型第二较佳实施例所提供的后车架40，其长管42中具有一肋板44，该肋板44是约平行于二长管42所在的平面P，由此，该长管42的结构强度可大幅提高而可承受更大的外力，特别是来自平行于该平面P的外力。Based on the spirit of the utility model, the shape of therib plate 22 has many variations.Rib 44, thisrib 44 is approximately parallel to the plane P where the twolong tubes 42 are located, thus, the structural strength of thelong tube 42 can be greatly improved and can withstand greater external forces, especially from parallel to the plane P external force.

又如图5所示，是本实用新型第三较佳实施例所提供的后车架50，其长管52中具有三肋板54分别由该长管52的内壁向内延伸而出并汇聚于一线L，该长管52内部被该等肋板54分成三容室56，由此，可均匀提升该长管52各方向的结构强度。As shown in Fig. 5, it is the rear frame 50 provided by the third preferred embodiment of the present invention, and its long tube 52 has three ribs 54 extending inwardly from the inner wall of the long tube 52 and converging On the line L, the inside of the long tube 52 is divided into three chambers 56 by the ribs 54 , thus, the structural strength of the long tube 52 in all directions can be evenly improved.

复如图6所示，是本实用新型第四较佳实施例所提供的后车架60，其长管62中具有四肋板64分别由该长管62的内壁向内延伸而出并汇聚于一线L，该长管62内部被该等肋板64分成四容室66，由此，可更均匀地提升该长管62各方向的结构强度。As shown in Figure 6, it is therear frame 60 provided by the fourth preferred embodiment of the present utility model, and itslong tube 62 has fourribs 64 extending inwardly from the inner wall of thelong tube 62 and converging On the line L, the inside of thelong tube 62 is divided into fourchambers 66 by theribs 64 , thus, the structural strength of thelong tube 62 in all directions can be improved more uniformly.

除此之外，连接部的结构与制法亦有多种变化的可能，如图7所示，本实用新型第五较佳实施例所提供的后车架70，具有二长管72与一连接部74，其制法是先将二长管72硬化成型，接着于该二长管72之间置放一发泡心材制成的连接件76，再利用一预浸树脂的纤维织布78将该连接件76与该二长管72包覆起来，该预浸树脂的纤维织布78即形成一管体79，加热硬化成型后即可于该二长管72之间形成该连接部74。In addition, the structure and manufacturing method of the connecting portion also have the possibility of many changes, as shown in Figure 7, therear frame 70 provided by the fifth preferred embodiment of the utility model has twolong tubes 72 and a Theconnection part 74 is made by hardening and forming the twolong tubes 72 first, then placing a connectingpiece 76 made of foamed heartwood between the twolong tubes 72, and then using afiber woven cloth 78 pre-impregnated with resin. Wrap theconnector 76 and the twolong tubes 72, and the pre-impregnatedresin fiber cloth 78 forms atube body 79, and the connectingportion 74 can be formed between the twolong tubes 72 after heating and hardening. .

凡是此等易于思及的结构变化，均应为本实用新型申请专利范围所涵盖。All these structural changes that are easy to think about should be covered by the patent scope of the utility model.

Claims (8)

Translated fromChinese

1.一种自行车的后车架，其特征在于，是包含有：1. A rear frame of a bicycle is characterized in that it comprises:二长管，是由纤维补强材料制成；以及Two long tubes, made of fibre-reinforced material; and一连接部，接设于该二长管之间；a connecting portion connected between the two long pipes;其中，该长管内具有至少一肋板。Wherein, the long tube has at least one rib inside.2.如权利要求1所述自行车的后车架，其特征在于，其中该肋板的数目为一个，该长管内部被该肋板分成二容室。2. The rear frame of a bicycle as claimed in claim 1, wherein the number of the ribs is one, and the inside of the long tube is divided into two chambers by the ribs.3.如权利要求2所述自行车的后车架，其特征在于，其中该二长管实质上位于同一平面，该肋板实质上平行于该平面。3 . The rear frame of a bicycle as claimed in claim 2 , wherein the two long tubes are substantially located on the same plane, and the ribs are substantially parallel to the plane.4.如权利要求2所述自行车的后车架，其特征在于，其中该二长管实质上位于同一平面，该肋板实质上垂直于该平面。4 . The rear frame of a bicycle as claimed in claim 2 , wherein the two long tubes are substantially located on the same plane, and the rib is substantially perpendicular to the plane.5.如权利要求1所述自行车的后车架，其特征在于，其中该肋板的数目为三个，分别由该长管的内壁向内延伸而出并汇聚于一线，该长管内部被该等肋板分成三容室。5. The rear frame of a bicycle as claimed in claim 1, wherein the number of ribs is three, respectively extending inward from the inner wall of the long tube and converging on a line, the inside of the long tube is The ribs are divided into three chambers.6.如权利要求1所述自行车的后车架，其特征在于，其中该肋板的数目为四个，分别由该长管的内壁向内延伸而出并汇聚于一线，该长管内部被该等肋板分成四容室。6. The rear frame of the bicycle according to claim 1, wherein the number of the ribs is four, respectively extending inward from the inner wall of the long tube and converging on a line, the inside of the long tube is The ribs are divided into four chambers.7.如权利要求1所述自行车的后车架，其特征在于，其中该连接部是一管体。7. The rear frame of the bicycle as claimed in claim 1, wherein the connecting portion is a tube.8.如权利要求7所述自行车的后车架，其特征在于，其中该管体内设有发泡心材。8 . The rear frame of a bicycle as claimed in claim 7 , wherein a foamed core material is arranged in the tubular body.

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