Massey Ferguson Manufacturing Limited

Agco Corporation

Massey-ferguson Services N.v.

Massey-ferguson Inc.

John Sebastian Bennett

John Penrose Mills

A tractor electronic linkage control system comprises electronic draft force and linkage position sensors (30, 33) and manual draft force and linkage position controls (31, 32). An electronic control unit 17 derives draft and position error signals and continually compares them to determine whether the system is to operate in draft control mode, where the draft error signal governs linkage movement, or position control mode, where the position error signal governs linkage movement.

Tractor electronic linkage control system

Continuously variable transmission

An arrangement for sensing the draft force on a linkage such as a tractor three-point linkage comprises a backplate (12) with flexible webs (16) extending from it. Depending from the webs (16) are spurs (18) which, at their lower end, join each other and form a rearwardly extending member (24). A bore (15) extends through the backplate (12) and rearwardly extending member (24), in which a force sensing pin (30) is received. The bracket may be made from a single casting.

Implement linkage draft force sensing arrangement

Vehicle with multiple driven axles

A gear selector means for use with a transmission having a main change speed gear set (X) and one or more associated range change gear sets (Y, Z). The selector means includes a selector member (50) which is movable to a number of positions (1, 2, 3, 4) for the selection of a number of change speed ratios of the transmission and which has a neutral position or series of positions (n) corresponding to a neutral condition of the transmission. The selector member is movable from the or a neutral position (n) to an 'up' position (52) in which upward range changes can be made in a predetermined sequence (A, B, C, D) and to a 'down' position (53) in which downward range changes can be made in a predetermined sequence, each movement of the selector member to the 'up' or 'down' position being arranged to change the operative range of the transmission either up or down to the next range in the predetermined sequence.

Growing community of inventors

Leamington Spa, United Kingdom

John Sebastian Bennett