TWI597148B - Bicycle seat system of the law - Google Patents

Bicycle seat system of the law Download PDF

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Publication number
TWI597148B
TWI597148B TW106101175A TW106101175A TWI597148B TW I597148 B TWI597148 B TW I597148B TW 106101175 A TW106101175 A TW 106101175A TW 106101175 A TW106101175 A TW 106101175A TW I597148 B TWI597148 B TW I597148B
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Taiwan
Prior art keywords
cavity
mold
seat cushion
bicycle seat
plastic
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TW106101175A
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English (en)
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TW201825256A (zh
Inventor
cai-yun Yu
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Priority to TW106101175A priority Critical patent/TWI597148B/zh
Priority to CN201710412484.4A priority patent/CN108297331B/zh
Application granted granted Critical
Publication of TWI597148B publication Critical patent/TWI597148B/zh
Priority to PT172084238T priority patent/PT3348459T/pt
Priority to HUE17208423A priority patent/HUE047854T2/hu
Priority to EP17208423.8A priority patent/EP3348459B1/en
Priority to US15/857,059 priority patent/US10919196B2/en
Publication of TW201825256A publication Critical patent/TW201825256A/zh

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    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/06—Making multilayered articles
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/18—Covers for saddles or other seats; Paddings
    • B62J1/26—Paddings involving other resilient material, e.g. sponge rubber with inflatable compartments
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
    • B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1219—Foaming between a movable mould part and the preformed part
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/143—Means for positioning the lining in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2031/3094—Saddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/12—Production or manufacturing of vehicle parts
    • B60Y2410/122—Plastic parts manufactured by moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

自行車座墊之製法
本發明係與自行車座墊有關，特別是關於一種自行車座墊之製法，依該製法所生產出的自行車座墊除了可支撐騎乘者之重量外，更可提供騎乘時的舒適感。
美國第5,441,676號專利案揭露了一種自行車座墊的製法，依該製法所製成的自行車座墊具有一凝膠層，藉著該凝膠層的流動彈性來提供乘座時的舒適感，而該製法，主要是先將座墊之外覆層以真空吸引方式貼附於一模具之模穴內壁，然後將凝膠以及PU發泡材料分別灌注到模穴內，使外覆層之內表面先後堆疊出一凝膠層與一發泡層，再讓座墊內殼結合於外覆層及發泡層而完成整體自行車座墊。該種製法之缺點如該專利案的第2圖所示，該座墊凝膠層與發泡層的交接處會形成有階部，此階部將使騎乘者之胯部與腿部無法與座墊平順地接觸，當騎乘的時間一長，騎乘者之胯部及腿部會因過度摩擦而不舒服甚而受傷。
基此，一種可改進習用自行車座墊製法缺失之新製法有待被提出。
本發明即是在提供一種新的自行車座墊製法，該自行車座墊通常具有一底殼，一彈性墊，以及一表層，該彈性墊具有一支撐層以及一承壓層，該支撐層係由一第一塑膠發泡材料所製成；該承壓層係由一第二塑膠發泡材料所製成。該製法在實施時，必須使用一模具，該模具包含有一下模，一中模，一上模，以及一壓框，該下模具有一開口朝上的模穴，該中模係以可置入或移開之方式佈置於該模穴內。該製法首先是將該表層佈置於該下模之模穴壁面，並使該表層具有一超出該模穴頂緣之週邊；接著，將該壓框疊置於該模穴頂緣用以將該表層之週邊拘束於該壓框與該模穴頂緣之間；然後，以真空方式使該表層緊密地貼附於該模穴之內壁；繼之，將預定量之第二塑膠發泡材料注入該模穴內；之後，將該中模佈置於該模穴內，用以在在該模穴界定出一第一部份，供該第二塑膠發泡材料發泡形成該承壓層；再繼之，將該中模維持於前述之狀態一第一預定時間後將其移除；接著，將預定量之第一塑膠發泡材料注入該模穴內，該第一塑膠發泡材料於受壓後回彈之速度較該第二塑膠發泡材料為快；而後，將該底殼佈置於該上模表面，並蓋合於該下模上，用以於該底殼與該承壓層之間界定出一第二部分，供該第一塑膠發泡材料發泡形成該支撐層；然後，將該上模維持於前述之狀態一第二預定時間後將該上模及壓框移開，並取出該成品。
首先請參閱第1圖至第3圖，圖號10所示者為依據本發明一較佳實施所製成之自行車座墊，其包含有一底殼20，一彈性墊30，以及一表層40。
該底殼20在形狀上一般具有一窄前部22，如第3圖所示，一寬後部24，如第2圖所示，以及一自該窄前部22往該寬後部24延伸之長軸X-X’。
該彈性墊30包含有一支撐層50以及一承壓層70。該支撐層50係佈置於該底殼20之頂面，該承壓層70係佈置於該支撐層50之頂面。該支撐層50具有一第一上表面502，一第一側表面504，一連接該第一上表面502與該第一側表面504之第一凸弧面506，以及一貼附於該底殼20頂面之第一下表面508。
該承壓層70具有一第二上表面702，一第二側表面704，一連接該第二上表面702與該第二該側表面704之第二凸弧面706，以及一第二下表面708，該第二下表面具有一凹弧部710。該第二上表面702，該第二凸弧面706，以及該第二該側表面704係與該表層40貼附在一起。該第二下表面708係貼附於該支撐層50之該第一上表面502上，而該凹弧部710係貼附於該第一凸弧面506上。再者，該第二側表面704之下側端與該凹弧部710之下側端係接合在一起，用以界定出一周邊712，該周邊712係與該第一側表面504之上側端連接在一起，如此，將可使該彈性墊30具有一平順的外側面。也就是說，該座墊承壓層70與支撐層50的交接處不會有階部形成，騎乘者之胯部與腿部與該座墊係平順地接觸，因而可減少騎乘時所產生的不舒服感。
本發明所提供之製法係用來製造前揭之自行車座墊10，以下茲配合第4a~g圖對該製法之一較佳實施例做詳細的說明。
請參閱第4a~g圖，該自行車座墊10通常係以一組模具所製成，該組模具包含有一下模80，一中模82，一上模84，以及一介於該上、下模80、84之間的壓框86。該下模80具有一開口朝上的模穴802，該中模82係以可置入或移開之方式佈置於該模穴802內。
請參閱第4-b圖，首先係將該表層40佈置於該模穴802壁面，並使該表層40具有一超出該模穴頂緣之週邊401，一般而言，該表層40可以布質，皮質，人造皮或其他合成材料製成。
接著，將該壓框86疊置於該模穴802頂緣用以將該該表層40之週邊401拘束於該壓框86與該模穴802頂緣之間，在此同時，可以真空吸附方式使該表層40緊密地貼附於該模穴802內壁。
再來，請參閱第4-c圖，在該下模80維持於45 。C之狀態下，將預定量之第二塑膠發泡材料注入該模穴802內，第二塑膠發泡材料為一種惰性發泡材料(Temper Foam)，例如，一種具低回彈性之PU發泡材料。
再請參閱第4-d圖，當該第二塑膠發泡材料被注入該模穴802後，接著，將該中模82佈置於該模穴802之一適當位置，用以在該模穴802界定出一第一部份804，供該第二塑膠發泡材料發泡形成該承壓層70。一般而言，該中模82具有一底面820，當該中模82被佈置於該模穴802內時，可藉該底面820與該模穴802之壁面形成該第一部份804之形狀。再者，為了使該中模82固定在該模穴802內，本製法係在該中模82佈置於該模穴802後，再以該上模84壓制該中模82。另外，於本實施例，該模穴802具有一呈凹弧狀之側壁面，該中模82之底面820具有一凸弧部822，該凸弧部822可貼合於該側壁面之一部份，用以使該模穴802之第一部份804具有一呈彎月狀之側邊806。如此設計，即可形成該承壓層70之第二凸弧面706，凹弧部710以及周邊712。
再來，請參閱第4-e圖，在使該中模82與該上模84維持於前述之狀態一第一預定時間後將二者移除。於本實施例，該第一預定時間約為3至5分鐘，最佳約為4分鐘。接著，取用預定量之第二塑膠發泡材料注入該模穴802內。一般而言，本發明所取用的該第一塑膠發泡材料於受壓後回彈之速度係較該第二塑膠發泡材料為快，例如，該第一塑膠發泡材料可為一種具高回彈性之PU發泡材料。當將第二塑膠發泡材料注入該模穴802內時，同樣將該下模80維持於45 。C之狀態下。
再接著，請參閱第4-f圖，將該底殼20佈置於該上模84表面，並蓋合於該下模80上，用以於該底殼20與該承壓層40之間界定出一第二部分808，供該第一塑膠發泡材料發泡形成該支撐層50，該底殼20通常係以硬質或半硬質之塑膠材料模塑成型。
最後，請參閱第4-g圖，使該上模84及壓框86維持於前述之狀態一第二預定時間後，再將該上模84與該壓框86打開，此時，即可自該下模80取出該自行車座墊10，於本實施例，該第二預定時間約為4至6分鐘，最佳約為5分鐘。
10‧‧‧自行車座墊
20‧‧‧底殼
22‧‧‧窄前部
24‧‧‧寬後部
30‧‧‧彈性墊
40‧‧‧表層
401‧‧‧週邊
50‧‧‧支撐層
502‧‧‧第一上表面
504‧‧‧第一側表面
506‧‧‧第一凸弧面
508‧‧‧第一下表面
70‧‧‧承壓層
702‧‧‧第二上表面
704‧‧‧第二側表面
706‧‧‧第二凸弧面
708‧‧‧第二下表面
710‧‧‧凹弧部
712‧‧‧周邊
80‧‧‧下模
802‧‧‧模穴
804‧‧‧第一部份
806‧‧‧側邊
808‧‧‧第二部分
82‧‧‧中模
820‧‧‧底面
822‧‧‧凸弧部
84‧‧‧上模
86‧‧‧壓框
X-X’‧‧‧長軸
以下茲以一較佳實施例並配合圖式，對本發明做進一步的說明，其中: 第1圖為依據本發明一較佳實施例所製成之自行車座墊之立體圖； 第2圖為沿第一圖2-2方向上之剖視圖； 第3圖為沿第一圖3-3方向上之剖視圖；以及 第4a~g圖為本發明一較佳實施例各步驟之示意圖。
10‧‧‧自行車座墊
20‧‧‧底殼
24‧‧‧寬後部
30‧‧‧彈性墊
40‧‧‧表層
50‧‧‧支撐層
502‧‧‧第一上表面
504‧‧‧第一側表面
506‧‧‧第一凸弧面
508‧‧‧第一下表面
70‧‧‧承壓層
702‧‧‧第二上表面
704‧‧‧第二側表面
706‧‧‧第二凸弧面
708‧‧‧第二下表面
710‧‧‧凹弧部
712‧‧‧周邊

Claims (11)

  1. 一種自行車座墊之製法，該座墊具有一底殼，一彈性墊，以及一表層，該彈性墊具有一支撐層以及一承壓層，該支撐層係由一第一塑膠發泡材料所製成；該承壓層係由一第二塑膠發泡材料所製成；該製法係使用一模具，該模具包含有一下模，一中模，一上模，以及一壓框，該下模具有一開口朝上的模穴，該中模係以可置入或移開之方式佈置於該模穴內；該製法包含有如下之步驟： 將該表層佈置於該下模之模穴壁面，並使該表層具有一超出該模穴頂緣之週邊； 將該壓框疊置於該模穴頂緣用以將該表層之週邊拘束於該壓框與該模穴頂緣之間； 以真空吸附方式使該表層緊密地貼附於該模穴之內壁； 將預定量之第二塑膠發泡材料注入該模穴內； 將該中模佈置於該模穴內，用以在該模穴界定出一第一部份，供該第二塑膠發泡材料發泡形成該承壓層； 將該中模維持於前述之狀態一第一預定時間後將其移除； 將預定量之第一塑膠發泡材料注入該模穴內，該第一塑膠發泡材料於受壓後回彈之速度較該第二塑膠發泡材料為快； 將該底殼佈置於該上模表面，並一起蓋合於該下模上，用以於該底殼與該承壓層之間界定出一第二部分，供該第一塑膠發泡材料發泡形成該支撐層；以及 將該上模維持於前述之狀態一第二預定時間後，再將該上模與該壓框打開，並取出該成品。
  2. 如請求項1所述之自行車座墊之製法，其中在將該中模佈置於該模穴內之步驟後，更包含了以該上模壓制該中模之步驟。
  3. 如請求項1所述之自行車座墊之製法，其中係將該下模係維持在45 。C之狀態下，將預定量之第二塑膠發泡材料注入該模穴內。
  4. 如請求項1所述之自行車座墊之製法，其中係將該下模係維持在45 。C之狀態下，將預定量之第一塑膠發泡材料注入該模穴內。
  5. 如請求項1所述之自行車座墊之製法，其中該第一預定時間約為3至5分鐘。
  6. 如請求項1所述之自行車座墊之製法，其中該第二預定時間約為4至6分鐘。
  7. 如請求項1所述之自行車座墊之製法，其中該第一塑膠發泡材料為一種具高回彈性的PU發泡材料。
  8. 如請求項1所述之自行車座墊之製法，其中該第二塑膠發泡材料為一種惰性泡棉(Temper Foam)。
  9. 如請求項8所述之自行車座墊之製法，其中該第二塑膠發泡材料為一種低回彈性之PU發泡材料。
  10. 如請求項1所述之自行車座墊之製法，其中該中模具有一底面，當該中模被佈置於該模穴內時，可藉該底面與該模穴之壁面界定出該第一部份之形狀。
  11. 如請求項10所述之自行車座墊之製法，其中該模穴具有一呈凹弧狀之側壁面，該中模之底面具有一凸弧部，該凸弧部可貼合於該側壁面之一部份，用以使該模穴之第一部份具有一呈彎月狀之側邊。
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PT172084238T PT3348459T (pt) 2017-01-13 2017-12-19 Método para fazer um selim de bicicleta
HUE17208423A HUE047854T2 (hu) 2017-01-13 2017-12-19 Eljárás kerékpárnyereg elõállítására
EP17208423.8A EP3348459B1 (en) 2017-01-13 2017-12-19 Method for making a bicycle saddle
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