[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.abpd.cz\/co-je-to-trapezovy-zavit-a-kde-se-s-nim-setkate\/#Article","mainEntityOfPage":"https:\/\/www.abpd.cz\/co-je-to-trapezovy-zavit-a-kde-se-s-nim-setkate\/","headline":"Co je to trap\u00e9zov\u00fd z\u00e1vit a kde se s n\u00edm setk\u00e1te","name":"Co je to trap\u00e9zov\u00fd z\u00e1vit a kde se s n\u00edm setk\u00e1te","description":"Trap\u00e9zov\u00fd z\u00e1vitn\u00edk je n\u00e1stroj, kter\u00fd je zapot\u0159eb\u00ed ke zhotoven\u00ed stejnojmenn\u00e9ho druhu z\u00e1vitu. Tomuto z\u00e1vitu se tak\u00e9 p\u0159ezd\u00edv\u00e1 \u201elichob\u011b\u017en\u00edkov\u00fd\u201c a n\u011bkdy tak\u00e9 \u201elichob\u011b\u017en\u00edkov\u00fd maticov\u00fd\u201c nebo \u201erovnoramenn\u00fd\u201c. V praxi se s n\u00edm m\u016f\u017eete setkat u z\u00e1vitov\u00fdch ty\u010d\u00ed, kter\u00e9 slou\u017e\u00ed jako vodic\u00ed za\u0159\u00edzen\u00ed... ","datePublished":"2022-12-19","dateModified":"2023-04-25","author":{"@type":"Person","@id":"https:\/\/www.abpd.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.abpd.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/75822ebcb33f26a58f54da5d813b950f2ea435f36540e293975e215a51d4a023?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/75822ebcb33f26a58f54da5d813b950f2ea435f36540e293975e215a51d4a023?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"abpd.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.abpd.cz\/wp-content\/uploads\/screw-g152fd76c6_640.jpg","url":"https:\/\/www.abpd.cz\/wp-content\/uploads\/screw-g152fd76c6_640.jpg","height":0,"width":0},"url":"https:\/\/www.abpd.cz\/co-je-to-trapezovy-zavit-a-kde-se-s-nim-setkate\/","about":["N\u00e1kupy"],"wordCount":395,"articleBody":"        Trap\u00e9zov\u00fd z\u00e1vitn\u00edk je n\u00e1stroj, kter\u00fd je zapot\u0159eb\u00ed ke zhotoven\u00ed stejnojmenn\u00e9ho druhu z\u00e1vitu. Tomuto z\u00e1vitu se tak\u00e9 p\u0159ezd\u00edv\u00e1 \u201elichob\u011b\u017en\u00edkov\u00fd\u201c a n\u011bkdy tak\u00e9 \u201elichob\u011b\u017en\u00edkov\u00fd maticov\u00fd\u201c nebo \u201erovnoramenn\u00fd\u201c. V praxi se s n\u00edm m\u016f\u017eete setkat u z\u00e1vitov\u00fdch ty\u010d\u00ed, kter\u00e9 slou\u017e\u00ed jako vodic\u00ed za\u0159\u00edzen\u00ed ve stroj\u00edrenstv\u00ed.Trap\u00e9zov\u00e9 z\u00e1vity spadaj\u00ed do kategorie maticov\u00fdch z\u00e1vit\u016f a pr\u00e1v\u011b zde bychom se r\u00e1di pozastavili a v kr\u00e1tkosti se zamysleli nad v\u00fdznamem tohoto stroj\u00edrensk\u00e9ho prvku.\u0160roub a matice \u2013 tento rozeb\u00edrateln\u00fd spoj zn\u00e1 asi ka\u017ed\u00fd. Se \u0161roubky a mati\u010dkami se seznamuj\u00ed ji\u017e d\u011bti v mate\u0159sk\u00fdch \u0161kol\u00e1ch a v dom\u00e1cnostech, jestli\u017ee maj\u00ed k dispozici hra\u010dky, kde se \u0161roubov\u00e9 spoje vyskytuj\u00ed. Existence z\u00e1vitu v\u0161ak nen\u00ed tak star\u00e1, jak si mnoz\u00ed z v\u00e1s mysl\u00ed, prvn\u00ed z\u00e1vit (Whitworth\u016fv) je lidstvu zn\u00e1m a\u017e od poloviny 19. stolet\u00ed, tedy z doby, kdy zapo\u010dala svou \u00e9ru pr\u016fmyslov\u00e1 revoluce.Do t\u00e9 doby lid\u00e9 z\u00e1vity v\u016fbec neznali a jist\u011b si um\u00edte p\u0159edstavit, jak\u00fd dopad to m\u011blo na jejich b\u011b\u017en\u00fd \u017eivot. Z technick\u00e9ho hlediska byl velmi primitivn\u00ed, i kdy\u017e si nesm\u00edme myslet, \u017ee byl primitivn\u00ed i co se t\u00fd\u010de duchovn\u00ed (mor\u00e1ln\u00ed) \u00farovn\u011b, ta bohu\u017eel s technikou krok neudr\u017eela a sou\u010dasn\u00fd sv\u011bt je v tomto ohledu sp\u00ed\u0161e na \u00farovni starov\u011bku.Ale vra\u0165me se nyn\u00ed k z\u00e1vit\u016fm a zejm\u00e9na \u0161roub\u016fm a matic\u00edm. V na\u0161em ka\u017edodenn\u00edm \u017eivot\u011b hraj\u00ed nezastupitelnou roli, a tak v\u00fdroba matic a \u0161roub\u016f pat\u0159\u00ed k nejd\u016fle\u017eit\u011bj\u0161\u00edm stroj\u00edrensk\u00fdm \u010dinnostem. Mo\u017en\u00e1 v\u00e1s napad\u00e1, \u017ee je \u0161roub\u016f a matic v\u0161ude kolem n\u00e1s plno, a \u017ee hodnota jednoho \u0161roubku nep\u0159esahuje p\u00e1r korun. To je samoz\u0159ejm\u011b pravda, ale n\u011bkdo je mus\u00ed vyrobit, a kdyby tomu tak nebylo, sou\u010dasn\u00e1 podoba sv\u011bta by se v\u00fdrazn\u011b zm\u011bnila. Proto bychom m\u011bli na ka\u017ed\u00fd \u0161roubov\u00fd spoj pohl\u00ed\u017eet s \u00factou a uv\u011bdomit si, \u017ee k jejich v\u00fdrob\u011b jsou zapot\u0159eb\u00ed maticov\u00e9, a tedy i trap\u00e9zov\u00e9 z\u00e1vitn\u00edky, kter\u00e9 tvo\u0159\u00ed p\u00e1te\u0159 stroj\u00edrensk\u00e9 v\u00fdroby.                                                                                                                                                                                                                                                                                                                                                                                          4\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Co je to trap\u00e9zov\u00fd z\u00e1vit a kde se s n\u00edm setk\u00e1te","item":"https:\/\/www.abpd.cz\/co-je-to-trapezovy-zavit-a-kde-se-s-nim-setkate\/#breadcrumbitem"}]}]