Abstract:
A trolley for conveying containers for pieces or components in an industrial plant comprises a trolley structure (3) adjustable in length in the longitudinal direction (L) of the trolley and locating supports for the container (C) that include side supports(AL) adjustable in position in a transverse direction (T), orthogonal to the longitudinal direction (L). In this way, the trolley (1) can be adapted to containers for pieces (C) having dimensions and/or configurations different both with reference to the longitudinal direction (L) and with reference to the transverse direction (T). The trolley structure (3) comprises a central structure (30) and a front frame (32) and a rear frame (31), which are slidably mounted towards and away from each other on said central structure (30), in said longitudinal direction (L), and can be blocked selectively in different positions, in which they are at different distances from one another so as to define different lengths of the trolley (1). The lateral locating supports (AL) are slidably mounted on the front and rear frames (32, 31) in the transverse direction (T) and can be blocked in a plurality of different adjustment positions. The wheel units (WL, WR) of the trolley are carried pivotally by the front and rear frames (32, 31) at the two sides of the median plane (m) of the trolley. The steering control unit (2) of the trolley (1) is articulated to the front frame (32) and is connected by a tie-rod or chain or belt transmission to at least one front wheel unit (WL) and to at least one rear wheel unit, which are arranged on one side or on opposite sides of the trolley, in such a way that the front wheel unit and the rear wheel unit are made to oscillate in opposite directions to keep the wheels aligned with the curved path to be followed. In the preferred embodiment the adjustable frames (32, 31) have in plan view a T-shaped configuration, to leave a free space at the two sides of the central structure (30) of the trolley.
Abstract:
An articulated steering load-carrying vehicle (1) with a front portion (2), which over a steering joint (10) is connected to a rear portion (3), wherein the front portion (2) includes a first power engine (12) and at least one forward driven wheel pair (5,5'), and wherein the rear portion (3) includes a load receiving device (6) and at least two driven wheel pairs (7, 7 '; 8, 8 ' ). Of said at least two driven wheel pairs (7, 7'; 8, 8') on the rear portion a second wheel pair (8,8') is steeringly connected to the rear portion. The invention also concerns a system for driving of such a load-carrying vehicle.
Abstract:
A system for controlling a vehicle. The vehicle (1) has a steerable front axle (3) and at least one further steerable axle (6) and the system comprises means for determining the path of a reference lead point (5) at the front of the vehicle (1). There is also means for determining the path of a follow point at the rear of the vehicle, and means for driving the at least one further steerable axle (6) of the vehicle such that the deviation between the path of the lead point (5) of the vehicle and the follow point is within a predetermined range whilst the vehicle (1) is in motion.
Abstract:
A steerable conveyor vehicle for use with an endless conveyor belt includes an elongate conveyor mechanism having two opposite side frame members. A pair of transversely aligned wheel units for supporting the conveyor are provided with each unit having a wheel support structure detachably connected to a respective side frame member and a wheel mounted to this structure for pivotable movement about a vertical axis. The wheel support structure includes a vertical support plate having a set of fastener holes formed therein. At least some of these holes are aligned with at least some fastener holes formed in the adjacent side frame member for connecting the wheel unit at a selected one of at least two possible relative heights.
Abstract:
A safety system for at least one steerable wheel of a vehicle. The system comprises an actuating means and a locking means and is arranged such that, upon a predetermined condition arising, the actuating means effects centring of the or each wheel and the locking means then effects locking of the or each centred wheel.
Abstract:
A steering trailer or semi-trailer (1) of the type provided with a device (5) for detecting the angle of displacement between a motor-driven towing vehicle (6) which is being steered and the trailer or semi-trailer (1) in order to control the corresponding steering of at least one steering axle (3,4) of the trailer or semi-trailer (1), the axle having opposing steering hub means interconnected with one another and at least one of which is subject to a steering actuator (13), the trailer or semi-trailer (1) comprises, for each steering axle (3,4), a hydraulic control cylinder (25, 26) belonging to the detection device (5) and a hydraulic actuator cylinder (13) belonging to the steering actuator, these cylinders (13, 25, 26) both being dual-acting and having a double chamber (13a, b;23a,b;24a,b) of identical overall working volume, and being interconnected with one another such that the corresponding chambers are in mutual hydraulic connection via a transfer circuit (15) for the fluid pumped from a chamber (23a, b; 24a, b) of the control cylinder (25,26) to a corresponding chamber (13a, b) of the actuator cylinder (13) and vice versa.
Abstract:
A steering system wherein there are one or more sets of wheels having a common steered axle (8) associated with a bell-crank, each bell-crank having a body having at least two spaced pivot points (9), a steering crank assembly with a pivot point located intermediate the pair of bell cranks having four spaced pivot points (10), the steered axle (8) associated with each bell crank and at least four pushrods (3, 3a), each pivotally attached at one end to a bell crank pivot point (9), there being two pushrods (3, 3a) for each bell crank, and the other end of pushrod (3a) being pivotally attached to their other end the predetermined distance from the steering crank pivot point on the steering crank assembly.
Abstract:
A steering mechanism for a trailer, to prevent jack-knifing when reversing and to prevent the trailer following towing vehicle or a horse on an inwardly displaced path when negotiating a curve in the forward direction. The mechanism includes a swivel plate (20) activated by the trailer wheels 85) to a forward steer position when the trailer moves forward and a rearward steer position when the trailer moves to the rear and a yaw link (15) on the trailer connected to the towing vehicle at a horizontally displaced position from the hitch (2) to activate steering linkages (18, 20) when yaw occurs between the towing vehicle and trailer in one sense when the swivel plate (20) is in the forward steer position and an opposite sense when the swivel plate (20) is in the rearward steer position, dependant on forward or reverse movement.
Abstract:
A system is adapted for guided steering of at least one set of rear wheels of a semi-trailer or trailer of a cargo vehicle which comprises said semi-trailer or trailer and a pulling vehicle or a tractor. The system comprises bearing means wherein the rear wheels are journalled turnable with respect to the chassis of the semi-trailer so that the rear wheels may turn from a neutral position to one or the other side for generating steering of the vehicle in one direction with respect to said neutral position. The system further comprises power generating means to act on the rear wheels and by activation generate said turnings of the rear wheels to one or the other side, activating means mounted in the driver's cabin of the vehicle and adapted to be operated by the driver of the vehicle for activation of the power generating means for generating a steering of the rear wheels independently of the steering of the pulling vehicle or tractor as well as locking means adapted to be operated from the driver's cabin of the vehicle, in a first position for generating locking of the rear wheels in said neutral position, and being switchable from the first position to a second position, in which the rear wheels are released and brought to turn by activation of the activation means. Furthermore, the system comprises blocking means comprising speed detecting means or being adapted to cooperate with a speed detector of the vehicle for detection of the speed of the vehicle and for determination of whether or not the speed of the vehicle is higher or lower than a preset speed limit, said blocking means cooperating with the locking means and being adapted to generate blocking of the locking means in said first position, when the speed detected by the blocking means is higher than said speed limit, and to release the locking means from said blocking when the speed detected by the blocking means is lower than said speed limit.
Abstract:
A steering device for many-axled goose-neck trailers (2, 5) coupled behind a tractor (1) or other vehicles (5) via the goose-neck (3, 16) and a fifth wheel (4, 18) on the tractor (1) or other vehicle (5). Of the wheel sets of the trailer (2, 5) the foremost one (16, 18) and the rear ones (8a, 8b, 9a, 9b, 12a, 12b) are steered by friction against the road, and in addition thereto the rearmost ones (9a, 9b, 12a, 12b) of the rear wheel sets (8a, 8b, 9a, 9b, 12a, 12b) are also forcibly steered from the tractor (1) or other vehicle (5) by the fifth wheel (4, 18) of same via a transmission (48', 48''). The wheel sets may also be provided by a reverse lock (44).