Caterpillar Inc.

Brent R Frazier

Christian D Ritchie

Matthew James Gielda

Justin Michael Malohn

Brad Robert Van De Veer

Aaron L Dunaway

Jeffrey Zurinski

Kevin F Stremlau

Shane C McBride

Bryan Everett Copeland

Thomas Allan Jenne

Rajesh Mishra

Jason E Stibs

David Allen Ober

Dale Higdon

Todd Bartholomew Smith

Matthew J Rettick

Alexa Davis

Emile Ghantous

Mathew J Gielda

Delong Zuo

Pedro Urias Castro

Heling Yuan

Yi Tao

An operator cab for a machine such as a motor grader includes an access door coupled to a frame by way of a hinge mechanism. The hinge mechanism has abutting cam and follower surfaces with geometry to control the swinging of the access door such as under the force of gravity. The cam surface has a double-sloped profile of rotation about the pivot axis of the hinge mechanism so that the access door swing is controlled in either of a first or a second swing direction toward a dwell location of the access door.

Operator cab for machine having door with swing controlling hinge mechanism

A cab for a machine. The machine has a longitudinal axis extending between a front, and a back opposite to the front. The cab includes a roof and a floor extending generally about the longitudinal axis. A vertical seat index axis extends through intermediate portions of the roof and the floor and is associated with a position of the operator disposed to face the front. The vertical seat index axis intersects perpendicular to the longitudinal axis at an intersection. A plurality of support members are disposed between the roof and the floor, including a rear support member disposed at a rear end of the cab. At least an upper portion of the rear support member is positioned at an angle relative to the intersection at an angle along the longitudinal axis and defines a rear view opening to facilitate rear end visibility of the machine.

Machine cab having improved operator visibility

A cabin is disclosed for use with a mobile machine. The cabin may have a floor and a roof. The cabin may also have at least one A-post located at a leading end relative to a forward travel direction of the mobile machine, and a C-post located at a trailing end opposite the at least one A-post. The C-post may have two terminal ends located at the floor, and a single terminal end located at the roof.

Machine cabin having improved operator visibility

The cab for a mobile machine includes a seat for an operator, and a rollover protective structure (ROPS). The ROPS being positioned on either side of a first vertical plane centrally located on the seat and extending along a length of the cab. The ROPS may include a C-post positioned behind the seat, and a B-post positioned in front of the seat. The C-post may include a first portion extending upwards and angled towards the seat. The first portion may extend from a first end proximate a bottom rear corner of the cab to a second end proximate the first vertical axis. The ROPS may also include a second portion extending upwards from the second end to a third end proximate a roof of the cab. The ROPS may further include a third portion extending in a direction away from the seat from the third end to a fourth end proximate a top rear corner of the cab.

Cab frame with integrated rollover protective structure

A cab of a mobile machine may include a seat for an operator. The cab may also include a first vertical plane centrally located on the seat and extending along a length of the cab. The cab may further include a rollover protective structure (ROPS). The ROPS may include a first component and a second component positioned on either side of the first vertical plane. At least one of the first component and the second component may include a single tube shaped to form a C-post positioned behind the seat, a B-post positioned in front of the seat, and a header connecting the C-post and the B-post. The C-post and the B-post may each include support structures that extend from a floor of the cab to a roof of the cab. The header may extend along a length of the cab.

Cab frame with hydroformed rollover protective structure

The cab of a mobile machine may include a first vertical plane centrally positioned along a width of the cab and extending along a length of the cab. The cab may also include a frame with an integrated rollover protective structure. The frame may include an A-post, a B-post, and a C-post arranged along a side of the cab and extending along a height direction of the cab. An elongated portion of the A-post may be inclined from a vertical axis of the cab to make an acute angle with the first vertical plane and an acute angle with a second vertical plane orthogonal to the first vertical plane. And, an elongated portion of the B-post may be inclined from the vertical axis to make an acute angle with the first vertical plane and an acute angle with the second vertical plane.

Cab rollover protective structure for enhanced visibility

An operator interface for advanced transmission control of a vehicle is disclosed. The operator interface may include a hand operated joystick mounted on a vehicle and a roller mounted on the joystick, the roller having at least two detents for providing at least four distinct states of speed control, the at least four distinct states including one or more increasing states and one or more decreasing states. In another embodiment, the roller of the operator interface may include at least one detent for providing at least three distinct states of speed control, the at least three distinct states including at least one increasing state, at least one decreasing state, and at least one other speed state provided in one of either an increasing state or a decreasing state.

Operator interface for machine control

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Morton, IL, United States of America

Brent R Frazier