Uredska stolica podesiva u više osi

undergraduate thesis

• Title (english): Multi-axis adjustable office chair
• Author: Bruno Mraz
• Mentor: Neven Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2019-03-01, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom završnom radu bilo je potrebno koncipirati i konstruirati uredsku stolicu podesivu u više osi. Kao uvod dan je osvrt na važnost kvalitetne stolice uslijed dugog sjedenja, potom je ukratko prikazana povijest uredske stolice kakvu poimamo danas. Radi jednostavnijeg razumijevanja usvojene su pretpostavke o koordinatnom sustavu stolice. Dalje je napravljena tržišna analiza na temelju tri postojeća proizvoda koji spadaju u viši cjenovni rang. Na temelju njihovog ispunjavanja zadatkom zadanih funkcija su ocijenjeni i služe kao osnova u daljnjem koncipiranju. Na temelju postojećih rješenja su uz pomoć morfološke matrice napravljena dva koncepta s detaljno opisanim principima rada. Vrši se vrednovanje koncepata i odabire se prvi kao bolji te se počinje s proračunom. Proračun se vršio od dna prema vrhu stolice. Ključno je bilo odrediti ulazne podatke, to jest opterećenja. Po završetku proračuna prikazano je gotovo rješenje sa opisom načina rada.

Abstract (english)

The task of this bachelor thesis was to create a concept and develop an office chair that is adjustable in multiple axes. In the introduction a review on the importance of a high quality chair is given and afterwards a brief history of an office chair as we know it today. For simplicity, assumptions about chair coordinate system were made. Next was market analysis on the basis of three existing products, all belonging to higher price end. They were compared on the basis of fullfiling the required functions and are accordingly used as basis for later analysis. With help of existing solutions and morpholigic matrix two concepts were made with described work principles. The concepts were graded and better was chosen so calculations can begin. The calculations were done from bottom to top. Crucial part was to determine inputs, that is, loads. In the end finished product is shown with desrcibed working principles.

• Keywords: uredski stolac; podesivost; mehanizam
• Keywords (english): office chair; adjustability; mechanism
• Language: croatian
• URN:NBN: urn:nbn:hr:235:117538
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-23 00:01:55