Riding mower

• US 4,809,489 A
• Filed: 01/14/1988
• Issued: 03/07/1989
• Est. Priority Date: 08/08/1985
• Status: Expired due to Term

• Current Assignee: Husqvarna AB (HUSQVARNA)
• Original Assignee: Husqvarna AB (HUSQVARNA)
• Inventors: Johansson, Rolf A. G.
• Primary Examiner(s): Weiss, John
• Application Number:
  US07/144,726
• Time in Patent Office: 418 Days
• Field of Search: 56/10.1, 56/6, 56/7, 56/14.7, 56/249, 180/14.4, 180/235, 180/138, 280/492
• US Class Current: 56/14.7
• CPC Class Codes: A01D 2034/645 Lifting means for the cutter of the lawnmower mounted at the front of the vehicle for inspection and maintenance
• CPC Class Codes: A01D 2101/00 Lawn-mowers
• CPC Class Codes: A01D 34/64 mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle A01D34/695 takes precedence

Abstract

The invention relates to a mower comprising a chassis which is provided with an engine. The chassis consists of a front and a rear section each section being provided with a pair of wheels and the front section supports a cutting attachment. The front and at least a part of the rear section are pivotally connected to each other so that they can be turned mainly about a vertical steering axis and about a mainly horizontal swinging axis. The steering axis (29) and the swinging axix (42) is placed considerably closer to the wheel axis of the rear section (13) than the wheel axis of the front section (12) preferably so that the distance (a) between the steering axis (29) and the wheel axis of the rear section (13) is less than 1/3 of the distance (b) between the two wheel axis.

Claims

1. In an engine-driven riding mower having a chassis provided with separate front and rear sections, an engine mounted on said rear section, a cutting attachment supported by said front section and driven by said engine, the improvement comprising a pair of front wheels operatively connected to said front section and a pair of rear driving wheels operatively connected to said rear section, said rear driving wheels having an axis, means for steering said rear driving wheels and including a vertical steering axis about which said rear driving wheels turn, said vertical steering axis being located in the rear of said mower chassis at a distance from the rear wheel axis which is less than 1/3 of the distance between the front and rear wheel axes, and a horizontal swinging axis which is substantially perpendicular to said rear wheel axis, said horizontal swinging axis being placed at said vertical axis location and additionally positioned centrally between said driving wheels, and said engine being provided with an output shaft that is concentric with said vertical steering axis.

2. A riding mower as claimed in claim 1 wherein said rear section is provided with a gear box with a differential gear, a rear shaft for transmitting a driving force to said rear pair of wheels, and a belt wherein the transmission of force between the engine and gear box is created by said belt which is located in the same plane as said horizontal swinging axis.