U radu se razmatra četvoročlani kulisni mehanizam čiji pogonski član rotira konstantnom ugaonom brzinom oko nepomične ose. Konstruiše se metoda za određivanje karakterističnih ubrzanja mehanizma. Metoda je čisto geometrijska i zasniva se na trenutnim centrima rotacije članova mehanizma. Prava, koja prolazi kroz trenutne centre rotacije članova koji nisu u direktnom kontaktu, ima ključnu ulogu u formulaciji metode.%The four-member inverted slider-crank mechanism with driving member which rotate with constant angular speed around fixed axis is presented. The method for determination of charakteristic mechanism accelerations is introduced, purely on the basis of geometry. The method is based on momentary rotational centers of mechanism members. A straight line, passing through the momentary rotational centers of mechanism members which are not in contact, has a key role in this method.
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