The vehicle steering system includes front vehicle motive members, rear vehicle motive members, a steering input device, a front steering subsystem, a rear steering subsystem and a rear steering control mechanism. The front steering subsystem is operably coupled to the steering input device and coupled to the front motive members to steer the front motive members. The rear steering subsystem is coupled to the rear motive members to steer the rear motive members. The rear steering control mechanism includes a movable input member coupled to the steering input device so as to move in response to input from the device and a movable output member coupled to the rear steering subsystem. The rear steering subsystem adjusts steering of the rear motive members in response to movement of the output member. The control mechanism operates in a rear steering state in which force is transmitted from the input member to the output member to move the output member and a dwell state in which the output member does not move in response to movement of the input member.

Vehicle steering system having a rear steering control mechanism

A transmission comprising an input member, an output member and a planetary gear train is provided. The planetary gear train includes an output carrier and a spindle. The output carrier includes an outer conically tapered surface and the spindle includes a tapered inner surface having a variable inner diameter. The outer conically tapered surface of said output carrier includes a variable outer diameter. The output carrier is immovably affixed to said stationary spindle by forcibly press-fitting said variable outer diameter of said outer conically tapered surface of said output carrier into immoveable engagement with said variable inner diameter of said tapered inner surface of said spindle. The planetary gear train effects a speed reduction between said input member and said output member.

Press fit carrier/spindle for use in planetary transmission

An annular member ( 20 ′) intended for a braking device ( 16 ′) in the form of a multiple disk brake. The annular member includes a first portion which forms a part of a brake housing of the braking device and a second portion which forms a pressure surface for the disks in the braking device. The invention also relates to an arrangement for driving a wheel of a vehicle including the annular member.

Annular braking device for a vehicle

Apparatus to install structural supports in a mine tunnel. The apparatus is conveniently mountable on a mining machine having a cutting head (105) mounted at one end of a boom. An extendable and slewing manipulator arm (110) is mounted on a support platform that is slidable in the axial forward and rearward direction and comprises a grasping device to hold the structural supports (111) in a plurality of different positions.

Tunnel support installation apparatus

In a shuttlecar wheel end, the wheel unit on which the wheel is mounted is driven by a right angle drive and incorporates first and second planetary gear reduction stages acting sequentially to supply a twice reduced drive to the wheel. Each gear reduction stage has a sun gear meshing with planet gears meshing in turn with a fixed ring gear. The planet gears in each case are carried by a rotatable planet carrier, with the planet carrier of the first reduction stage carrying the sun gear of the second reduction stage. The resulting wheel end is compact in design and does away with the need for an external speed reduction stage.

Shuttlecar wheel end

The invention provides a modification to a wheel hub of the kind comprising hollow body housing a wheel speed reducer having a pinion carrier which is locked for rotation with the hollow body. According to the invention, splined mounting means is provided between the pinion carrier and the hollow body for locking the pinion carrier in rotation with the hollow body. Mounting means of this kind require only a small radial space, and the radial bulk of the assembly can therefore be reduced with this arrangement. The invention is particularly applicable to the hubs of driving wheels for industrial vehicles, agricultural machines, public works machines and load-handling machines.

Wheel hub with integral planetary speed reducer

Wheel hub with integral reducer

IL S'AGIT D'UN MOYEU DE ROUE DU GENRE COMPORTANT UN CORPS CREUX 12, ET, DANS CELUI-CI, UN REDUCTEUR DE ROUE DONT LE PORTE-SATELLITES 25 EST CALE EN ROTATION SUR LUI. SUIVANT L'INVENTION, POUR LE CALAGE EN ROTATION DU PORTE-SATELLITES 25 SUR LE CORPS CREUX 12, UN MONTAGE A CANNELURES 70 EST PREVU ENTRE LEDIT PORTE-SATELLITES 25 ET LEDIT CORPS CREUX 12. APPLICATION, NOTAMMENT, AUX MOYEUX DE ROUE MOTEURS POUR VEHICULES INDUSTRIELS, ENGINS AGRICOLES, ENGINS DE TRAVAUX PUBLICS, OU ENGINS DE MANUTENTION.

Garnier Michel

Papers

Wheel hub with integral planetary speed reducer

Wheel hub with integral reducer

Moyeu de roue a reducteur integre