TW201422475A - 吸震自行車車架及其製法 - Google Patents

吸震自行車車架及其製法 Download PDF

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TW201422475A
TW201422475A TW101145933A TW101145933A TW201422475A TW 201422475 A TW201422475 A TW 201422475A TW 101145933 A TW101145933 A TW 101145933A TW 101145933 A TW101145933 A TW 101145933A TW 201422475 A TW201422475 A TW 201422475A
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Taiwan
Prior art keywords
tube
outer tube
bicycle frame
inner tube
nylon
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TW101145933A
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English (en)
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Guo-Pin You
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Yuan Min An Entpr Co Ltd
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Priority to TW101145933A priority Critical patent/TW201422475A/zh
Priority to EP13152122.1A priority patent/EP2740657A1/en
Priority to CA2803299A priority patent/CA2803299A1/en
Priority to US13/760,892 priority patent/US20140159336A1/en
Publication of TW201422475A publication Critical patent/TW201422475A/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B62K19/16—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3091—Bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K2025/041—Axle suspensions for mounting axles resiliently on cycle frame or fork the cycle frame being made of a flexible material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

一種吸震自行車車架，包含有一管體，該管體具有一內管、以及一外管套設於該內管之至少一部份，且內管、外管之間無縫隙，該內管係纖維補強熱固性塑膠材質，該外管則為纖維補強熱塑性塑膠材質。該車架之製法係先將一含浸熱塑性樹脂之纖維織布置入一模具中，並加熱至230℃至250℃以形成一外管；接著將一含浸熱固性樹脂之纖維織布插入該外管中，並加熱至140℃至160℃以於該外管內形成一內管。藉此，本發明之自行車之車架不僅重量輕且吸震效果佳，而製造方法步驟單純、施作容易且產品良率高。

Description

吸震自行車車架及其製法
本發明係與自行車有關，特別是指一種吸震自行車車架及其製法，不僅車架之重量輕且避震效能佳，且其製法步驟單純、施作容易且產品良率高。
習知以碳纖維補強材料製成之自行車車架，均是採用含浸熱固性樹脂如環氧樹脂之碳纖維織布作為原料，捲繞成預型之後在模具中經過加熱硬化成型，即可形成自行車之車架，由於此材料之重量輕、結構強度高，已廣泛為自行車業界所採用。
但以此材料所製成之車架吸震效果不佳，必須搭配彈簧或油壓避震器，始能具備吸震功效，惟加裝避震器會使車架重量大幅增加，且有降低動力傳輸效率之副作用，因此，如何能製造出又輕又具有避震功效之自行車車架，已成為業界亟待研發之課題。
本發明之一目的在於提供一種吸震自行車車架，不僅重量輕且吸震效果佳。
本發明之另一目的在於提供一種吸震自行車車架之製法，其步驟單純、施作容易且產品良率高。
為達成前揭目的，本發明所提供之吸震自行車車架之製法包含有以下步驟：(a)將一含浸熱塑性樹脂之纖維織布捲繞而成之預型外管置入一模具中，加熱至230℃至250℃ 並於該預型外管內部施壓使該預型外管之外緣貼抵於該模具之內壁，使該預型外管硬化形成一外管；(b)將一含浸熱固性樹脂之纖維織布捲繞而成之預型內管插入已硬化之該外管中；以及(c)將該預型內管連同該外管加熱至140℃至160℃，並於該預型內管內部施壓使該預型內管之外緣貼抵於該外管之內壁，使該預型內管硬化形成一內管，同時使該內管與該外管以無縫隙之方式接合在一起。藉此，本發明之製造方法步驟單純、施作容易且產品良率高。
由此製法所製成之吸震自行車車架，係包含有一管體，該管體具有一內管、以及一外管套設於該內管之至少一部份，且內管、外管之間無縫隙，該內管係纖維補強熱固性塑膠材質，該外管則為纖維補強熱塑性塑膠材質。藉此，本發明之車架不僅重量輕且吸震效果佳。
10‧‧‧吸震自行車車架
11‧‧‧頭管
12‧‧‧上管
13‧‧‧下管
14‧‧‧立管
15‧‧‧後上叉
16‧‧‧後下叉
17‧‧‧前叉
18‧‧‧把手
19‧‧‧座管
20'‧‧‧預型外管
20‧‧‧外管
22‧‧‧外緣
23‧‧‧內壁
201‧‧‧缺口
24'‧‧‧預型內管
24‧‧‧內管
26‧‧‧外緣
28‧‧‧管體
30‧‧‧模具
32‧‧‧內壁
第一圖係本發明一較佳實施例所製成之避震自行車車架；第二至五圖係本發明一較佳實施例所提供製法之示意圖；第六圖係本發明一較佳實施例之局部立體圖；第七圖係本發明另一較佳實施例之局部立體圖。
請參閱第一圖，本發明一較佳實施例所提供之吸震自行車車架10係具有一頭管11、一上管12由該頭管11向後水平延伸而出、一下管13由該頭管11向後下方延伸而 出、一立管14連接該上管12與該下管13之後端、一後上叉15由該立管14上段向後延伸而出、一後下叉16由該立管14下段向後延伸而出且與該後上叉15之後端連接、一前叉17可轉動地穿設於該頭管11中、一把手18設於該前叉17頂端、及一座管19插設於該立管14中，由於該車架10之各部位均呈管狀，故下文係以上管12為例加以詳述。
本發明一較佳實施例所提供之吸震自行車車架(或該上管)之製法係包含有以下步驟：
(a)如第二圖所示，將一含浸熱塑性樹脂之纖維織布捲繞成一預型外管20'，其中，該纖維可採用而不限於碳纖維、硼纖維、玻璃纖維或克維拉(KEVLAR®)纖維，其中以碳纖維為佳，該熱塑性樹脂可採用而不限於尼龍(Nylon)、聚乙烯(PE)、聚丙烯(PP)、聚苯乙烯(PS)、ABS樹脂或聚氯乙烯(PVC)，其中以尼龍6、尼龍11、尼龍12或尼龍66為宜；接著，如第三圖所示，將該預型外管20'置入一模具30中，加熱至230℃至250℃並於該預型外管20'內部施壓使該預型外管20'之外緣22貼抵於該模具30之內壁32，約30分鐘後，即可使該預型外管20'硬化形成一外管20。於本步驟中，加熱溫度以240℃為宜，且係以高於一大氣壓之氣體灌入該預型外管20'中而對該預型外管20'內部施壓。
(b)如第四圖所示，將一含浸熱固性樹脂之纖維織布捲繞成一預型內管24'，並該預型內管24'插入已硬化之該外管20中，為加強該預型內管24'與該外管20之結合力， 可於該預型內管24'外緣或該外管20之內壁23塗覆黏著材，該黏著材可為環氧樹脂、其他液體或其他固體，利用黏著材可將兩者更穩固地結合在一起，其中，該纖維可採用而不限於碳纖維、硼纖維、玻璃纖維或克維拉(KEVLAR®)纖維，惟以碳纖維為宜，該熱固性樹脂可採用而不限於環氧樹脂、壓克力樹脂、酚樹脂或聚氨基甲酸脂(PU)，以環氧樹脂為宜。
(c)最後，如第五圖所示，將該預型內管24'連同該外管20於該模具30中加熱至140℃至160℃，惟以150℃為宜，並於該預型內管24'內部施壓使該預型內管24'之外緣26貼抵於該外管20之內壁23，約15-30分鐘後，即可使該預型內管24'硬化形成一內管24，同時使該內管24與該外管20以無縫隙之方式接合在一起，於本步驟中，係以高於一大氣壓之氣體灌入該預型內管24'中而對該預型內管24'內部施壓，且本步驟中使用的模具與步驟(a)中模具可為同一模具，亦可為不同模具。
藉此，即可製成自行車車架之特定部位，如上管12，將該特定部位與其他部位組接在一起，即可形成完整之自行車車架，就結構而言，如第六圖所示，該吸震自行車車架10係包含有一管體28，該管體28具有一內管24、以及一外管20套設於該內管24，且內管24、外管20之間無縫隙，該內管24係由纖維補強熱固性塑膠製成，該外管20則由纖維補強熱塑性塑膠製成，且該外管20包覆於該內管24之至少一部份即可，而不一定將該內管24全部包覆。
由於內管24是纖維補強熱固性塑膠材質，其剛性較外管高但彈性(吸震性)較外管低，而外管是纖維補強熱塑性塑膠材質，其剛性較內管低但彈性(吸震性)較內管好，因此，經過實際測試發現，本發明所製成之自行車車架具有符合使用需求之剛性與相當程度的彈性(或吸震性)，可有效吸收因路面顛頗而傳遞至騎乘者之振動，減緩騎乘者之不適感，且重量較習知具有避震器之自行車車架輕盈，使自行車之使用便利性有效提升，頗具市場潛力。再者，本發明所提供之方法不僅步驟單純、施作容易且產品良率高，具有降低生產成本之優勢。
基於本發明之精神，可將本發明之製法應用於自行車車架之任何部位，如頭管11、上管12、下管13、立管14、後上叉15、後下叉16、前叉17、把手18與座管19，特別是後上叉15之二叉腳、後下叉16之二叉腳、或前叉17之二叉腳，外管20包覆於該內管24之面積亦可依需求調整，未必得完整將內管24完整包覆，甚至外管20具有缺口201而未形成完整的管形，如第七圖所示，亦應為本創作申請專利範圍所涵蓋。
20‧‧‧外管
24‧‧‧內管
28‧‧‧管體

Claims (12)

  1. 一種吸震自行車車架之製法，係包含有以下步驟：(a)將一含浸熱塑性樹脂之纖維織布捲繞而成之預型外管置入一模具中，加熱至230℃至250℃並於該預型外管內部施壓使該預型外管之外緣貼抵於該模具之內壁，使該預型外管硬化形成一外管；(b)將一含浸熱固性樹脂之纖維織布捲繞而成之預型內管插入已硬化之該外管中；以及(c)將該預型內管連同該外管加熱至140℃至160℃，並於該預型內管內部施壓使該預型內管之外緣貼抵於該外管之內壁，使該預型內管硬化形成一內管，同時使該內管與該外管以無縫隙之方式接合在一起。
  2. 如請求項1所述之吸震自行車車架，於步驟(a)中該熱塑性樹脂係尼龍、聚乙烯、聚丙烯、聚苯乙烯、ABS樹脂或聚氯乙烯。
  3. 如請求項2所述之吸震自行車車架，其中該尼龍係尼龍6、尼龍11、尼龍12或尼龍66。
  4. 如請求項1所述之吸震自行車車架，於步驟(a)中係以高於一大氣壓之氣體對該預型外管內部施壓。
  5. 如請求項1所述之吸震自行車車架，於步驟(b)中該熱固性樹脂係環氧樹脂、壓克力樹脂、酚樹脂或聚氨基甲酸脂(PU)。
  6. 如請求項1所述之吸震自行車車架，於步驟(b)中該預型內管與該外管係利用黏著材結合在一起。
  7. 如請求項1所述之吸震自行車車架，於步驟(c)中係以高於一大氣壓之氣體對該預型內管內部施壓。
  8. 一種吸震自行車車架，係包含有：一管體，具有一內管、以及一外管套設於該內管之至少一部份，且內管、外管之間無縫隙，該內管係由纖維補強熱固性塑膠製成，該外管則由纖維補強熱塑性塑膠製成。
  9. 如請求項8所述之吸震自行車車架，其中該外管之熱塑性塑膠係尼龍、聚乙烯、聚丙烯、聚苯乙烯、ABS樹脂或聚氯乙烯所形成。
  10. 如請求項9所述之吸震自行車車架，其中該尼龍係尼龍6、尼龍11、尼龍12或尼龍66。
  11. 如請求項8所述之吸震自行車車架，其中該內管之熱固性塑膠係由環氧樹脂、壓克力樹脂、酚樹脂或聚氨基甲酸脂(PU)所形成。
  12. 如請求項8所述之吸震自行車車架，其中該外管具有缺口而未形成完整的管形。
TW101145933A 2012-12-06 2012-12-06 吸震自行車車架及其製法 TW201422475A (zh)

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EP13152122.1A EP2740657A1 (en) 2012-12-06 2013-01-22 Shock-absorbable bicycle frame and method of manufacturing the same
CA2803299A CA2803299A1 (en) 2012-12-06 2013-01-24 Shock-absorbable bicycle frame and method of manufacturing the same
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CN104276245B (zh) * 2014-09-01 2017-05-24 张红明 一种酚醛硬质泡沫缠绕加胶玻璃纤维车架及其制备方法
EP3595853A4 (en) 2017-03-16 2020-12-23 Guerrilla Industries LLC COMPOSITE STRUCTURES AND PROCESSES FOR FORMING COMPOSITE STRUCTURES
US11273884B2 (en) 2018-09-05 2022-03-15 Sabic Global Technologies B.V. Bicycle frame
CN109974954B (zh) * 2018-11-22 2021-02-02 长安大学 一种路面自行车骑行振动预测系统及方法
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US1978653A (en) * 1933-07-31 1934-10-30 John R Smith Child's bicycle
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US20060038375A1 (en) * 2004-06-30 2006-02-23 Parkin Michael J Sizable composite tube bicycle frame and method of making
CN1939709A (zh) * 2005-09-27 2007-04-04 源民安企业股份有限公司 载具前架的制造方法
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