[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.astevia.cz\/zavitniky-whitworth-se-stale-pouzivaji\/#Article","mainEntityOfPage":"https:\/\/www.astevia.cz\/zavitniky-whitworth-se-stale-pouzivaji\/","headline":"Z\u00e1vitn\u00edky Whitworth se st\u00e1le pou\u017e\u00edvaj\u00ed","name":"Z\u00e1vitn\u00edky Whitworth se st\u00e1le pou\u017e\u00edvaj\u00ed","description":"Co je to z\u00e1vit, v\u00ed asi ka\u017ed\u00fd, a s prvn\u00edmi z\u00e1vity jsou v rodin\u00e1ch seznamov\u00e1ny i mal\u00e9 d\u011bti. Nejpou\u017e\u00edvan\u011bj\u0161\u00edm z\u00e1vitem ve st\u0159edn\u00ed Evrop\u011b je tzv. metrick\u00fd, kter\u00fd zn\u00e1me z v\u011bt\u0161iny \u0161roubov\u00fdch spojen\u00ed. Z\u00e1vit\u016f existuje v\u00edce druh\u016f, spojuj\u00ed se s nimi i trubky, jsou sou\u010d\u00e1st\u00ed patic n\u011bkter\u00fdch \u017e\u00e1rovek. M\u00e9n\u011b zn\u00e1m\u00fdm, ale st\u00e1le ve sv\u011bt\u011b pou\u017e\u00edvan\u00fdm je […]","datePublished":"2020-10-30","dateModified":"2023-06-07","author":{"@type":"Person","@id":"https:\/\/www.astevia.cz\/author\/#Person","name":"","url":"https:\/\/www.astevia.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/89f417dfbb336d235b856435ef935ffa51c2f646edc1f5c4e6fccf32a9c88173?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/89f417dfbb336d235b856435ef935ffa51c2f646edc1f5c4e6fccf32a9c88173?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"astevia.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.astevia.cz\/wp-content\/uploads\/%C5%A1roubov%C3%BD%20spoj.jpg","url":"https:\/\/www.astevia.cz\/wp-content\/uploads\/%C5%A1roubov%C3%BD%20spoj.jpg","height":0,"width":0},"url":"https:\/\/www.astevia.cz\/zavitniky-whitworth-se-stale-pouzivaji\/","about":["Spole\u010dnosti"],"wordCount":410,"articleBody":"       Co je to z\u00e1vit, v\u00ed asi ka\u017ed\u00fd, a s prvn\u00edmi z\u00e1vity jsou v rodin\u00e1ch seznamov\u00e1ny i mal\u00e9 d\u011bti. Nejpou\u017e\u00edvan\u011bj\u0161\u00edm z\u00e1vitem ve st\u0159edn\u00ed Evrop\u011b je tzv. metrick\u00fd, kter\u00fd zn\u00e1me z v\u011bt\u0161iny \u0161roubov\u00fdch spojen\u00ed. Z\u00e1vit\u016f existuje v\u00edce druh\u016f, spojuj\u00ed se s nimi i trubky, jsou sou\u010d\u00e1st\u00ed patic n\u011bkter\u00fdch \u017e\u00e1rovek. M\u00e9n\u011b zn\u00e1m\u00fdm, ale st\u00e1le ve sv\u011bt\u011b pou\u017e\u00edvan\u00fdm je tzv. Whitworth\u016fv z\u00e1vit.Historie Whitworthova z\u00e1vitu sah\u00e1 p\u0159ibli\u017en\u011b do poloviny devaten\u00e1ct\u00e9ho stolet\u00ed, kdy se za\u010d\u00ednal pomal\u00fdm tempem rozv\u00edjet hutn\u00ed a stroj\u00edrensk\u00fd pr\u016fmysl na po\u010d\u00e1tku pr\u016fmyslov\u00e9 revoluce. Jeho jm\u00e9no (podobn\u011b jako Edisonova \u017e\u00e1rovka) souvis\u00ed s objevitelem a prvn\u00edm realiz\u00e1torem z\u00e1vit\u016f, ve Velk\u00e9 Brit\u00e1nii, a pozd\u011bji tak\u00e9 ve Spojen\u00fdch st\u00e1tech a v Austr\u00e1lii. Stal se na dlouhou dobu standardizovan\u00fdm v\u00fdrobkem, ale b\u011bhem dvac\u00e1t\u00e9ho stolet\u00ed jej za\u010dal vytla\u010dovat (zejm\u00e9na v dal\u0161\u00edch evropsk\u00fdch zem\u00edch) z\u00e1vit metrick\u00fd.Jist\u011b si domysl\u00edte, \u017ee pr\u00e1v\u011b v USA, v Kanad\u011b, v Austr\u00e1lii a ve Velk\u00e9 Brit\u00e1nii, existuje \u0159ada v\u00fdrobk\u016f a pr\u016fmyslov\u00fdch odv\u011btv\u00ed, kde se st\u00e1le vyu\u017e\u00edv\u00e1, podobn\u011b jako je tomu u n\u011bkter\u00fdch tamn\u00edch fyzik\u00e1ln\u00edch (anglosask\u00fdch) veli\u010din (nap\u0159. libra, palec, yard, m\u00edle, stopa atd.) Proto se tak\u00e9 stabiln\u011b ve stroj\u00edrenstv\u00ed uplatn\u00ed z\u00e1vitn\u00edky Whitworth, mus\u00edme s nimi zkr\u00e1tka po\u010d\u00edtat i my, v \u010cesk\u00e9 republice. Jsou to p\u0159\u00edpady r\u016fzn\u00fdch instalac\u00ed a oprav, ale i n\u011bkter\u00fdch standardn\u00edch v\u00fdrobk\u016f pro zahrani\u010dn\u00ed klientelu. V \u010cesku je tento profil z\u00e1vitu (\u00fahel, hloubka, r\u00e1dius a stoup\u00e1n\u00ed) zn\u00e1m nap\u0159\u00edklad p\u0159i v\u00fdrob\u011b j\u00edzdn\u00edch kol (ventilky velodu\u0161\u00ed), a tak\u00e9 p\u0159i spojov\u00e1n\u00ed trubek (tzv. trubkov\u00fdm z\u00e1vitem), jde ov\u0161em o odli\u0161n\u00e9 rozm\u011bry z\u00e1vit\u016f, ve srovn\u00e1n\u00ed s t\u00edm p\u016fvodn\u00edm Whitworthov\u00fdm.Z\u00e1vitn\u00edky Whitworth se u n\u00e1s uplatn\u00ed hlavn\u011b p\u0159i \u00fadr\u017eb\u011b star\u0161\u00edch stroj\u016f a za\u0159\u00edzen\u00ed, p\u0159i oprav\u00e1ch a v\u00fdrob\u011b d\u00edl\u016f pro automobilov\u00e9, \u017eelezni\u010dn\u00ed, motocyklov\u00e9 a cyklistick\u00e9 veter\u00e1ny, a dal\u0161\u00ed mechanismy, kter\u00e9 slou\u017e\u00ed jako funk\u010dn\u00ed muzejn\u00ed expon\u00e1ty.                                                                                                                                                                                                                                                                                                                                                                                          4\/5 - (9 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Z\u00e1vitn\u00edky Whitworth se st\u00e1le pou\u017e\u00edvaj\u00ed","item":"https:\/\/www.astevia.cz\/zavitniky-whitworth-se-stale-pouzivaji\/#breadcrumbitem"}]}]