当前，我国的自行车正处于一个更新换代的时期，普通的自行车零部件过剩，虽然自行车的年销量还在增长，但该行业竞争非常激烈，致使落伍车型大量积压。为了在竞争中取胜，许多企业力争开发新款自行车。变速器是自行车上的重要零部件，也是自行车升级必须要有的零部件之一，变速器的优劣程度对自行车的款式与性能有举足轻重的作用。所以，自行车行业对变速器的性能较为重视；也因为没有价格合适的高性能变速器，国产的自行车款式发展受到了较大程度的影响。 自行车变速器分处装变速器与内变速器，由于我国的消费水平较低，大多数国产自行车上用廉价的外装变速器或低质量的内变速器。为了生产出上档次的自行车。一些企业曾进口过日本的内变速器，但因安装了进口的内变速器而使整车的售价高出了一倍左右。例：昆山的捷安特轻便车装了该内变速器后市场上的售价在806元至1200元左右。我们充分注意到自行车的这一情况，自1995年5月开始经较长一段时间的努力，试制成一种突破平凡的高质量自行车内变速器，并于2001年3月7日被国家专利局受理、审批。 中国有世界上最大的自行车市场，但其自行车零部件市场又缺乏一种高性能的内变速器。早在六十年代，我国就开始仿制美国的内变速器，由于制造工艺欠佳，工作也不可靠，而且易损坏；该产品在八十年代末就退出市场。由于自行车内变速器设计和制造有一定的特殊性，其基本要求是、制造成本低、工作可靠、经久耐用。八十年代以来，国内不少企业都尝试过该产品的开发，但均以失败告终。行内人士认为要制造出性能可靠的内变速器是件极困难的事。九十年代开始，日本产的“禧玛诺”内变速器风靡欧美国家，九三年销量达到历史最高水平。 现代的高级内变速器早已不是人们心目中“易损坏和工作不可靠”的概念，而是具有美观、简洁、安全、操作方便和不易损坏的特点。近年来，山地车也开始使用内变速器，日本、德国率先推出带内变速器的山地车和越野车，使山地车和越野车的外形及性能达到了前所未有的水平。 寻求合作。 联系地址：上海市嘉定区塔城路510弄6号502室 邮编：201800 联系人：季万华 Patent name ：Rapid hand control transmissiones of three inner place two buss Patent sign ：ZL01210999.1 Patent right man ：Ji Wanhua Item summarized account ： Present ，The bicycle of our country is being in a renewal particular period ，Ordinary bicycle components is surplus ，Although the bicycle year sales made still is living to rise ，Yet that profession contest is very much intensely ，Resuling in to fall behind the ranks , bus mould greats quantity keep long in stock 。In order to score a success in the contest being living ，Much businesss do all one can to opening up the fresh fund bicycle 。The transmission is a significant components on the bicycle ，Also is that the bicycle promotion have to one of some componentss ，The style to the bicycle of transmission superior and inferior degree possess the action that holds the balance against the performance 。Therefore ，The performance to the transmission of bicycle profession is relatively valueed ；For there not being the high performance transmission that price is appropriate yet ，The home-made bicycle style is developed to be subjected to the greatter degree effect 。 Transmission together with inside transmission is packed in the branch part of bicycle transmission ，Since the fact that the level of consumption of our country is leted drop ，In the way of cheap on most of home-made bicycles outside packs the inside transmission of transmission either low quality 。Come out to go up the grade bicycle for the sake of manufacture 。Some businesss had entered port the inside transmission of Japan once upon a time ，Yet the inside transmission of import cause the complete bus price go beyond one -fold of left and right sides as a result of fixing 。Instance ：The portable bus of nimble An Te of elder brother mountain packed that the price on that inside transmission queen marketplace is living 1200 yuan of lefts and right sides of 806 Yuan Zhi's 。We sufficiently pay attention to bicycle this situation ，Since 1995 May start viaing the effort of elderer one period ，Manufacture experimently inner place common into the one kind of breakthrough high quality bicycle transmission ，Moreover on March 7 , in 2001 is accepted by the country patent office 、Examine 。 The largesttest on middle belonging to the nation world bicycle marketplace ，Yet such bicycle components marketplace lack one kind tall inside transmission of performance once more 。Be living the 60's for a long time ，Our country starts being modelled on the inside transmission of the U.S. ，Since the fact that the manufacture technology is not good enough ，Work is also uncertain ，But also easily injure ；That produce is living in the 80's tips exit marketplaces 。Since the fact that transmission design and tabrication possess specified peculiarity inner place the bicycle ，Such basic requirement is 、The tabrication cost is leted drop 、Work is dependable 、It is able to stand wear and tear 。Since the 80's ，Domestic development that the a lot business had wholly attempied that produce ，Yet all come to an end with the defeat 。To think to manufacture out the dependable inside transmission of performance is an exceedingly difficult affair to public figure inner place the row 。The 90's start ，Japan is what yields “Happiness Ma promises ”Fashionable Europe and America country of inside transmission ，The sales made attaind the supremeest level of history 3 years 。 The contemporary high-quality inside transmission is not in the people frame of mind for a long time “Easily injures and work is uncertain ”The approximately idea ，But is haveing beautifully 、It is terse 、Security 、Distinguishing feature manipulating conveniently and easily not injuring 。In the past few years ，The bus in mountainous region also starts the transmission inner place the use ，Japan 、Germany is the first to do to put out to bring inside transmission mountainous region bus and the cross-country bus ，Cause mountainous region bus and cross-country bus external form and performance attain the hitherto unknown level 。 Cooperative means ：Explore working together 。 Touch address ：The rooms 502 of 6 are manage in the route 510 in Shanghai Jiading district tower city Mailing edits ：201800 Get in touch with man ：Ji Wanhua

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