Abstract: An arrangement in articulated vehicles for avoiding uncontrolled articulation movements between participating vehicle units, particularly occurring in vehicles equipped with driving wheels on the trailing unit where driving takes place as a thrusting movement. Power transmitted to the driving wheels is limited in response to different operating conditions for the vehicle units, represented by articulation angles and/or different wheel speeds on leading and trailing vehicle units. By means of sensors sensing current operational conditions, circuits comparing sensor signals and power control means controlling the driving unit for limiting the power transmitted to the driving wheels in response to the signals, uncontrolled articulation movements are avoided.

Abstract: A press operating with hydraulic pressure comprises a pair of relatively movable components (8, 11) which during a pressing operation carry out a relative movement which is sensed. By use of the sensed relative movement a control signal is generated which is used for regulating the hydraulic pressure so that this is caused to vary with the relative movement according to a certain functional relationship. For generating the control signal a manually programmable electrical function generator (23) is provided, preferably a panel (29) comprising plug contacts (34), on which a plurality of pairwise associated pressure and movement values, constituting electrically and visually readable points in the desired functional relationship, can be set up.

Abstract: The present invention relates to an arrangement for mechanically driving a mechanism connected to an internal combustion engine. A push rod is mounted between the mechanism and a shaft rotatably mounted in the engine, one end of said rod being adapted to actuate the mechanism and the other end being adapted to resiliently engage against an arcuate surface on said shaft and to be given oscillating translation motion by said shaft on rotation. The invention is distinguished in that the end of the push rod engaging against the shaft is provided with two extensions at least partially embracing the arcuate surface on the shaft, said extensions guiding the position of a rod in a plane transverse to the shaft when said shaft rotates. The push rod thus requires no extra guidance and is simple to fit and to dismantle. The push rod preferably comprises two parts joined to each other via a jointing sleeve allowing a given degree of angular latitude between said parts.

Abstract: A heating and ventilation system for a vehicle, including a ventilation housing comprising two housing halves mutually connected along at least one longitudinal plane, said halves forming together a space for the flow of air and enclosing fan means, a heat exchanger and a number of flap means for regulating the air flow. In the ventilation housing there is mounted a longitudinal intermediate wall between the housing halves. Said wall at least partially divides the space between the housing halves into two part spaces, each including a cold air duct, a hot air duct, a mixing chamber and a distribution chamber for leading ventilation air to different outlets in a vehicle passenger compartment. Said system enables using simple means to obtain individual regulation and heating of ventilation air at different outlets in a vehicle passenger compartment.

Abstract: A method and apparatus for retractably supporting lumber cants above feed chains in a cant positioner-feeder for locating the cant in a position to optimize lumber yield. The cants are supported with retractable cant supports interpositioned between the feed chains. The retractable cant supports may be movably mounted so that longitudinal motion is imparted to the cant as the cant supports are retracted, thereby reducing the relative velocity between the cant and feed chains.

Abstract: A method and an arrangement for regulating the signal level in detecting knocking in an internal combustion engine. A transducer, incorporated in a knocking detector, senses a parameter responding to pressure and/or temperature during combustion in the engine and emits a signal representing the degree of knocking. The output signal of the knocking detector controls a knocking-regulating quantity affecting combustion in the engine by being applied to a signal level limiting block which, when knocking sensed by the transducer exceeds a preselected level, limits the output signal level to a level corresponding to said preselected level, whereafter the output signal, at least for a limited time, can only be altered by signals representing a lesser degree of knocking than the preselected degree. Knocking can then be inhibited without delay.

Abstract: An arrangement for switching a carburetor in an internal combustion engine in a vehicle adapted for alternative operation on liquid or gaseous fuel. The carburetor is of the type where the pressure upstream of a throttle butterfly determines the engine air and fuel supply by the actuation of a piston provided with a metering needle. When using liquid fuel, the piston executes upward and downward movements, a passage leading through the carburetor thereby being constricted to a varying degree, and similarly the needle is caused to be thrust to a varying degree into a nozzle for metering liquid fuel to the engine induction air. This signifies too rapid wear of the metering needle in alternating operation on liquid and gaseous fuel.

Abstract: A method of avoiding abnormal combustion, so-called knocking, in an internal combustion engine, where a parameter representative of the combustion conditions in the engine is monitored. When abnormal combustion occurs, a signal representing such abnormal combustion is generated and is used to initiate an adjustment of the engine operating conditions by lowering the engine induction pressure so as to reestablish normal combustion. There is also provided an arrangement for avoiding abnormal combustion.

Abstract: In an arrangement for fitting a pedal assembly to a vehicle, at least one pedal is movably mounted on a bracket attached to a foot control panel which is connectable as a unit to the lower forward portion of a compartment space in the vehicle so that a base plate of the foot control panel covers either of two openings in the cowl panel on each side of the longitudinal center line of the vehicle. The same vehicle body can then be used for left-hand as well as right-hand drive vehicles, and mounting and service of the pedal assembly is easier.

Abstract: A safety headrest is via a holding means connected to the back support of a vehicle seat. The holding means allows the headrest to be adjusted in height relative to the seat. From a web portion on the headrest a forward and a rear leg portion extend downwards so as to embrace the top of the back support to the front and to the rear. In the lowermost position for the headrest said web portion rides on top of the back support. A frame structure of the headrest is connected to a bar slidable in the back support. In an embodiment said bar is adapted for travel under the action of a remote-controlled adjusting mechanism.

Abstract: An apparatus for measuring the evenness of a substructure, e.g. a road surface, is fitted to a vehicle. The free ends of a number of pivotable measuring arms, uniformly spaced side by side over the entire vehicle width, engage the substructure resiliently during measurement. Each measuring arm is pivotably mounted in a measuring housing which has a plate spring coacting with each arm. On pivotation of the arm relative to said housing, as a result of unevenness in the substructure, the plate spring executes a corresponding deflection, sensed by strain gauges attached to said spring and giving output signals, proportional to the deflection, to an electronic unit wherein the signals are converted to output data representing the surface evenness of the substructure.

Abstract: A ventilation system for a vehicle is provided with a ventilation housing through which air from an outer air intake is fed to at least one air outlet opening in the vehicle passenger compartment. In the ventilation housing there is a fan which, when energized acts on the airflow through the ventilation housing. The ventilation housing is provided with an opening which allows insertion, in the transverse direction of a passage in the housing, of a filter unit, which can comprise a filter insert in a cassette and/or an evaporator in a cooling system.

Abstract: An arrangement for attaching a tank fitting to a plastics fuel tank for motor vehicles. Through an outwardly directed pipe stub in the tank wall the fitting is inserted and fastened to the tank. Between fitting and pipe stub an elastic sleeve is clamped whose inner end by means of an inner clamping means sealingly engages against the fitting, and whose outer end by means of an outer clamping means surrounds the pipe stub. The inner clamping means is part of a stiffening member bearing against the inside of the pipe stub by means of an upper support ring. The outer end of the sleeve is folded over outwardly and pressed sealingly against the pipe stub by means of the outer clamping means and aganist the reinforcing action of the stiffening member. The arrangement enables a simple and sealed attachment of heavy tank fittings, e.g. a fuel pump.

Abstract: A steering wheel for vehicles, comprising a steering wheel rim to which is firmly connected a steering wheel hub which is arranged for attaching the steering wheel to the upper portion of a steering shaft installed in a vehicle, the steering wheel hub mainly comprising a spoke hub and an inner hub which are concentric and engage with each other, being mutually displaceable in an axial direction. The spoke hub is firmly connected to the steering wheel rim, and the inner hub is intended to be rigidly mounted on the steering shaft. The spoke hub and the inner hub are connected to each other via a locking means which locks the respective hubs radially and allows mutual axial adjustment of the hubs, whereby the steering wheel can be caused to assume alternative positions in height relative to the steering shaft.

Abstract: In a passenger car the steering wheel, which is impact-absorbing, is fixed to a steering wheel column that via an intermediate shaft is connected to a steering gear. The steering wheel column is journalled in a collapsible column support that is attached to a horizontal support beam extending transversely in the vehicle interior at a certain distance behind the beam supporting the windshield. The ends of the support beam are attached to carrying portions of the vehicle. On the intermediate shaft there is a deformable portion allowing the intermediate shaft to become deformed upon collision impact. In this way collision forces acting from the front reach the support beam and the steering wheel column late, while allowing the steering wheel and the column support to cushion the driver.

Abstract: A servo-supported gear changing apparatus for mechanical gearboxes. A rotatably and axially displaceable gear selector shaft in a gear selector housing is axially displaced, during a selecting step, to a preselected engagement position, and is turned to engage or disengage the appropriate gear by at least one gear selector mounted on the shaft. At least one torque-transmitting connection between the shaft and its lever has limited play in both directions, allowing in the initial engagement or disengagement stage a relative movement in the turning direction. A control valve then triggers a pressure-operated servo cylinder to perform the major gear changing work.

Abstract: A planet gear type hub gear for transmitting torque between a drive shaft and a vehicle wheel. The end portion of the drive shaft carries a sunwheel which cooperates with a plurality of planet wheels mounted on a planet wheel holder secured to the vehicle wheel. The planet wheels are meshing with a gear ring that is mounted on a fixed gear ring retainer, and that is locked axially on said retainer by means of at least one locking means. Said locking means engages grooves on both the gear ring and the gear ring retainer. In the planet wheel holder there is at least one passage via which the locking means can be operated by means of an elongate tool so as to make the gear ring, together with sunwheel planet wheels and planet wheel holder, axially removable from the gear ring retainer in a single unit enclosed by the hub casing.

Abstract: In a forward engine compartment of a vehicle a power unit is suspended so as to have a controlled rearward movement in the engine compartment when exposed to excessive forces in the lengthwise direction of the vehicle during a collision. There is at least one rear mounting having a resilient body separating two members secured to the power unit and to structural portions of the vehicle body, respectively. Said rear mounting allows one of the members a limited movement relative to the other while absorbing deformation work. As the power unit travels further back the attachment of the rear mounting is gradually destroyed, but it holds long enough to allow the power unit to hit a cowl panel at the rear of the engine compartment, thus controlling the travel of the power unit.