The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2006
Filed:
Oct. 30, 2001
Sami Arola, Mänttä, FI;
Arto Huhmarkangas, Tampere, FI;
Jouko Hyytiäinen, Juupajoki, FI;
Markku Jaatinen, Julkujärvi, FI;
Arto Vento, Kangasala, FI;
Sami Arola, Mänttä, FI;
Arto Huhmarkangas, Tampere, FI;
Jouko Hyytiäinen, Juupajoki, FI;
Markku Jaatinen, Julkujärvi, FI;
Arto Vento, Kangasala, FI;
Timberjack Oy, Tampere, FI;
Abstract
The invention relates to a chassis structure for a working machine moving on a terrain, the chassis structure comprising a pair of front wheels and a pair of rear wheels supporting the frame, and a controlled frame joint between the frame parts, when the frame is composed of two frame parts. The chassis structure further comprises a suspension controlled by actuators and arranged to move each wheel in a level transverse in relation to the frame. Each wheel is mounted rotatably and to turn by the actuators to the suspension, and each wheel is usually provided with a hub motor for drive transmission. The chassis structure can further comprise a pair of middle wheels for a second frame part. In a method related to the chassis structure the forest machine can also be turned in place.