[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.branavedeni.cz\/mereni-za-pomoci-pravitka\/#Article","mainEntityOfPage":"https:\/\/www.branavedeni.cz\/mereni-za-pomoci-pravitka\/","headline":"M\u011b\u0159en\u00ed za pomoc\u00ed prav\u00edtka","name":"M\u011b\u0159en\u00ed za pomoc\u00ed prav\u00edtka","description":"M\u011b\u0159idla jsou rozhodn\u011b nepostradateln\u00e9, proto\u017ee d\u00edky nim m\u016f\u017eeme vyr\u00e1b\u011bt p\u0159esn\u011b a tak, aby ka\u017ed\u00fd v\u00fdrobek byl stejn\u00fd. Jedn\u00edm ze z\u00e1kladn\u00edch je prav\u00edtko. M\u011b\u0159en\u00ed za pomoc\u00ed [...]<\/a>","datePublished":"2019-12-01","dateModified":"2023-05-05","author":{"@type":"Person","@id":"https:\/\/www.branavedeni.cz\/author\/#Person","name":"branavedeni.cz\n","url":"https:\/\/www.branavedeni.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"branavedeni.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/branavedeni.cz\/wp-content\/uploads\/plastov%C3%A9%20prav%C3%ADtko.png","url":"https:\/\/branavedeni.cz\/wp-content\/uploads\/plastov%C3%A9%20prav%C3%ADtko.png","height":"","width":""},"url":"https:\/\/www.branavedeni.cz\/mereni-za-pomoci-pravitka\/","about":["Neza\u0159azen\u00e9"],"wordCount":465,"articleBody":" M\u011b\u0159idla jsou rozhodn\u011b nepostradateln\u00e9, proto\u017ee d\u00edky nim m\u016f\u017eeme vyr\u00e1b\u011bt p\u0159esn\u011b a tak, aby ka\u017ed\u00fd v\u00fdrobek byl stejn\u00fd. Jedn\u00edm ze z\u00e1kladn\u00edch je prav\u00edtko. M\u011b\u0159en\u00ed za pomoc\u00ed prav\u00edtka Z\u00e1kladn\u00ed m\u011b\u0159idlo Prav\u00edtko je opravdu jedn\u00edm z v\u016fbec nejz\u00e1kladn\u011bj\u0161\u00edch m\u011b\u0159idel, proto\u017ee m\u00e1 z\u00e1kladn\u00ed d\u00e9lkov\u00e9 m\u00edry. Spat\u0159\u00edme na n\u011bm centimetry a milimetry, co\u017e je pro \u0159adu v\u00fdrob naprosto dosta\u010duj\u00edc\u00ed. S t\u00edm plastov\u00fdm pracuj\u00ed u\u017e d\u011bti na z\u00e1kladn\u00ed \u0161kole, proto\u017ee se u\u010d\u00ed z\u00e1klady geometrie a tak\u00e9 celkov\u011b r\u00fdsov\u00e1n\u00ed. Vzhledem k p\u0159esnosti na milimetry jsou obrazce hezky p\u0159esn\u00e9, p\u0159i\u010dem\u017e se i za pomoc\u00ed n\u011bj hezky r\u00fdsuje, proto\u017ee tu\u017eka kop\u00edruje hranu prav\u00edtka. Samoz\u0159ejm\u011b, \u017ee pro vyu\u017eit\u00ed t\u0159eba v d\u00edln\u011b nen\u00ed plastov\u00fd materi\u00e1l \u00fapln\u011b ide\u00e1ln\u00ed, a proto je mnohem lep\u0161\u00ed kov. Ten je toti\u017e mnohem v\u00edce odoln\u00fd a nerozhod\u00ed ho ani vy\u0161\u0161\u00ed teplota. Pokud jej budete klasicky pou\u017e\u00edvat, tak se mu rozhodn\u011b nic nestane a bude V\u00e1m velmi dlouho slou\u017eit bez \u017e\u00e1dn\u00fdch probl\u00e9m\u016f. Vzhledem k pevnosti m\u00edra neust\u00e1le z\u016fst\u00e1v\u00e1 stejn\u00e1, a proto se vyhneme nep\u0159\u00edjemnosti u ohebn\u00fdch prav\u00edtek, kter\u00e9 se oh\u00fdb\u00e1n\u00edm po n\u011bjak\u00e9 dob\u011b prodlu\u017euj\u00ed a milimetr u\u017e r\u00e1zem nen\u00ed milimetrem. Sinusov\u00e9 prav\u00edtko Prav\u00edtko samoz\u0159ejm\u011b nen\u00ed jen jedno, proto\u017ee jich je cel\u00e1 \u0159ada. Ka\u017ed\u00e1 pr\u00e1ce toti\u017e vy\u017eaduje specifick\u00e9 m\u011b\u0159en\u00ed, kdy si stejn\u00e9 prav\u00edtko nevezme t\u0159eba zedn\u00edk a truhl\u00e1\u0159. U ka\u017ed\u00e9ho jsou jin\u00e9 po\u017eadavky, a proto m\u00e1me tak\u00e9 \u0161irok\u00fd v\u00fdb\u011br t\u011bchto m\u011b\u0159idel. Jedn\u00edm z velmi specifick\u00fdch je sinusov\u00e9 prav\u00edtko https:\/\/www.i-nastroje.cz\/Sinusova-pravitka-c11_432_2.htm, kter\u00e9 poslou\u017e\u00ed zejm\u00e9na p\u0159i stroj\u00edrensk\u00e9 v\u00fdrob\u011b. Neslou\u017e\u00ed toti\u017e jako b\u011b\u017en\u00e1 prav\u00edtka k m\u011b\u0159en\u00ed d\u00e9lkov\u00e9 m\u00edry, ale k m\u011b\u0159en\u00ed \u00fahlu k z\u00e1kladn\u00ed rovin\u011b, proto\u017ee u mnoha sou\u010d\u00e1stek je pot\u0159eba vyrobit p\u0159esn\u00fd \u00fahel. Prav\u00edtko m\u00e1 zaj\u00edmav\u00fd vzhled, proto\u017ee nejv\u011bt\u0161\u00ed \u010d\u00e1st je kovov\u00e1 z\u00e1kladna, kter\u00e1 m\u00e1 po stran\u00e1ch dva v\u00e1le\u010dky. Pr\u00e1v\u011b d\u00edky tomuto \u0159e\u0161en\u00ed m\u016f\u017eeme snadno m\u011b\u0159it zobrazen\u00fd \u00fahel. Jmenuje se sinusov\u00e9, proto\u017ee se zde skute\u010dn\u011b vyu\u017e\u00edv\u00e1 funkce sinus, kter\u00e1 bere ohled na naklon\u011bn\u00ed os v\u00e1lc\u016f. \u010casto se prav\u00edtko pou\u017e\u00edv\u00e1 na m\u011b\u0159en\u00ed ku\u017eelovitosti, kdy se jeden v\u00e1le\u010dek nech\u00e1 na podlo\u017ece a druh\u00fd pot\u0159ebn\u011b podlo\u017e\u00ed, aby byla vrchn\u00ed strana ku\u017eelu v rovin\u011b. 4.2\/5 - (13 votes) "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"M\u011b\u0159en\u00ed za pomoc\u00ed prav\u00edtka","item":"https:\/\/www.branavedeni.cz\/mereni-za-pomoci-pravitka\/#breadcrumbitem"}]}]