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Construction of workout machines, their mechanisms and use in practice
SVINTEK, Lukáš
In the introduction of the diploma thesis, a current view of the issue of strengthening and strength machines is given. In the theoretical part, a general overview of the solved problem is made from available information sources. In the practical part, machines are divided according to various criteria with a focus on the most used machines. Then the work focuses on the construction of selected types of strength machines, safety features and sources of load forces. The next part consists of research in the form of a questionnaire intended for fitness centers. Based on the answers, a proposal to improve the problematic parts. This is followed by testing of the proposed design variants on a test device. The conclusion of the work is a summary of the facts found and their interpretation.
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Principle of work, structure, maintenance, efficiency and analysis of repairs of selected logging machines
SVINTEK, Lukáš
In the introduction, the contemporary situation in the wood extraction industry is described in general. This part introduces the reader to the issue of the industry together with addressing the solution of the contemporary situation emerging from the bark beetle crisis. The following part focuses on the method of wood extraction and used technologies. The general text is followed by a systematic classification of the extraction machines, their approaching, manipulation, and rough processing in the forest environment as well as manipulative space. This presented part describes the particular usage of the machines with the emphasis on specific sort of performed task. The subsequent chapter in the practical part deals with specific characteristics of the construction on these machines, their maintenance demands, and operator requirements. In the conclusion of this thesis, suggestions on construction improvement and operator safety are listed as well as recommendations to enhance the endurance of such equipment.
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