Abstract: A vehicle of the type having a motor driven vehicle unit and a wheeled auxiliary hook-up unit coupled thereto. A towing coupling is provided for enabling the auxiliary unit to be coupled to the vehicle unit in an articulated manner. A centering device is provided for centering the vehicle unit relative to the auxiliary hookup unit and a tightening fixture is provided to act on the towing coupling so as to displace the auxiliary towing unit relative to the vehicle unit so that it can be fixedly secured by a locking device.
October 4, 1979
Date of Patent:
August 18, 1981
Dr. Ing. h.c.F. Porsche Aktiengesellschaft
Albrecht Morlok, Fritz Hacker, Peter Kolling
Abstract: A vehicle, its frame, with a driver's seat, mounted on two rear wheels and a single steerable front wheel, is made to enable a wheel-mounted motor-driven rotary mower to be removably installed with its rear wheels between those of the vehicle, its front wheels behind the vehicle's front wheel. A drive to the vehicle's front wheel is releasably connectible to the drive shaft of the mower's motor, and means are provided for automatically lifting the mower's front wheels above the ground when the vehicle's front wheel is turned to steer to one side or the other, so as to prevent the mower wheels from being dragged sideways across the ground.
Abstract: A collapsible four wheel vehicle powered by an electrical source, including a storage battery, an electric motor, rear wheels driven by the electric motor, a pair of front wheels having a diameter nearly as great as the diameter of the rear wheels, a resistance bank connected between said battery and said electric motor, a switch means to control the operation of said electric motor, a steering mechanism to steer the front wheels, passenger seat, and a chassis frame on which all of said component parts are mounted and which frame is collapsible in the sense that it may be disassembled easily and quickly into two main sections each of which are foldable into a flat compact unit.
Abstract: A two-wheel tractor is provided with an improved type of steerable two-wheel trailer having a steering mechanism which enables an operator of the tractor seated in the trailer to bring about turning movement of the tractor-trailer assembly in a natural and efficient manner by applying a lateral steering force to the handlebars of the tractor. This arrangement minimizes the steering force required upon the tractor handlebars and the amount of lateral movement thereof relative to the trailer while also providing enhanced lateral stability to the tractor and trailer assembly.
Abstract: To increase the load carrying capacity of a truck employing a separable power module having a sub-frame coupled to the main frame of a forward steerable unit and trailing therefrom, a trailing or tag axle assembly has its trailing arms coupled to the sub-frame of the power module through transverse axis non-slip rubber bushings. The tag axle proper is coupled to the rear ends of the trailing arms through longitudinal axis non-slip rubber bushings. The tag axle assembly includes seats for air springs disposed directly over the tag axle and carried by an extension of the main frame of the forward steerable unit. Stresses induced by sharp turning of the vehicle are transmitted to the sub-frame of the power module and not to the main frame of the vehicle resulting in better steerability and less wear and tear on tires and mechanical structures. The increased load carrying capacity of the truck is obtained with a minimal weight increase and with comparatively low cost of manufacturing.
Abstract: The invention discloses a vehicle frame to be attached to the frame of a conventional two-wheeled motorcycle whose front wheel and fork have been removed, resulting in a combined structure of considerable integrity which may then be utilized as a basis for the construction of a three-wheeled vehicle commonly known as a cyclecar, said vehicle frame being of sufficiently general configuration to allow the builder considerable latitude in the choice of components necessary for the completion of the cyclecar.
Abstract: A powered transport unit which may be removably adapted to a standard golf bag cart or the like of the type having a pair of oppositely disposed wheels. A battery and a motor sit at opposite ends of a pivotally mounted power frame positioned between the wheels of the cart. A powered drive wheel is aligned with the wheels of the cart. The relative positions of the battery, motor and pivotal mounting allows the unit to achieve a zero resultant force on the cart's handle at a chosen motor output. A power control unit adaptable to the handle of the cart allows the user to activate and regulate the action of the drive wheel.
Abstract: A self-propelled shopping cart, having a trailer accommodation for transporting a passenger behind the cart, and further comprising a brake feature wherein a tilting trailer is used for automatic drive and brake control. An operator can tilt the trailer to the rear to apply a brake means or forward to engage a drive means. A basket of the cart can be removed and replaced by a seat and back rest through the use of a quick release cam locking device and the trailer can be placed in an upright, stowed position so that the cart may be used in the conventional manual push mode.
Abstract: An articulated tractor in which there is a front first tractor vehicle and rear second and third tractor vehicles, each of the tractors having an engine for driving the wheels of the tractor and the first tractor having an operator's compartment, the second and third tractors being connected to the first tractor through a cross bar pivotally secured adjacent its longitudinal midpoint to the rear of the first tractor for pivotal movement both about a generally vertical axis and a generally horizontal axis. The rear second and third tractors are secured to the cross bar by pivotal connections at points equally spaced from the first pivotal means so that the longitudinal axis of the second and third tractors are normally substantially parallel to each other.
Abstract: A vehicle chassis is formed from front and rear wheeled chassis units, the front unit providing the steering and the rear unit the drive. The units are connected together by flanges which provide a load-bearing function and are further connected together by studs on the rear unit passing through slots in the front unit, the studs being secured by nuts. In this way the longitudinal coupling of the units is separated from the load-bearing coupling.
Abstract: In a bus having a replaceable power drive unit docked in a compartment provided in the rear end of the bus body, jacking devices are provided between the power drive unit and the body for raising the rear end of the body relative to the power drive unit, thereby tilting the body about the axes of the front wheels of the bus as a fulcrum to provide increased working clearance between the body and the bus propulsion engine, which is mounted on the power drive unit. Safety support devices are provided to retain the body in elevated position, and latch devices to retain it in lowered, operative position.
Abstract: A portable, electric propulsion unit for attachment to a cart or the like including a longitudinal frame member, a battery storage container connected at one end to said frame member, a pair of side frame members connected to said battery storage container and said longitudinal frame member, a wheel mounted between said frame members, an electric motor mounted on one side frame member, a gearing means connecting said motor to said wheel, a connecting bracket rigidly coupled to one wall of said battery storage container and a battery charger connected on a side opposite said motor. The device is readily attachable to a cart, such as a golf bag cart, to provide propulsion of the cart upon command from an electric switch. The device has improved structural rigidity and dynamic balance for increased mobility and reliability.
Abstract: A lawn treating machine consisting of a wheeled front section and a wheeled rear section hinged together by a hydraulically operated vertical hinge mechanism for steering the machine. The front section includes a hydraulically driven scattering mechanism provided at the lower outlets of a multiple-compartment hopper assembly. The scattering mechanism includes a rotating horizontal scattering disc and rotating agitating and feeding elements which feed material from the hopper compartments to the disc. The rear section carries an engine-driven hydraulic pump supplying pressure hydraulic fluid to respective hydraulic motors driving the wheels of the front section. The rear section also carries a pivotally mounted transversely extending ground-scarifying blade assembly having a plurality of sod-piercing blades, the assembly being raised and lowered by hydraulic link means.
Abstract: In a tractor having front and rear pairs of wheels and an engine mounted over one of said pairs of wheels, the engine, said one pair of wheels, and implement hitch fittings comprise one module. The rest of the vehicle, including an operator's seat and steering wheel, comprises another module, connected with the first module by resilient vibration absorbing elements. In the first module the engine is rigidly mounted on a subframe to which the resilient elements are connected. The subframe and an axle for said pair of wheels can tilt relative to one another about a fore-and-aft extending axis, but such tilting is frictionally retarded to dampen vibratory engine movements about said axis.
Abstract: In combination with a tractor for towing a vehicle wherein the tractor includes a chassis upon which is secured a driving wheel assembly, the tractor including a motor for rotating the driving wheel assembly, an attachment for connecting the tractor to the vehicle, the attachment usable in two different modes to connect to the vehicle, the first mode using a horizontal connecting member pivotally mounted upon the chassis, so that the pivot axis intersects the tractor's drive wheel axis and is located midway between the driving wheels, the horizontal connecting member to cooperate in a telescoping manner within a tubular member secured to the vehicle, a pin insertable within aligned apertures between the connecting member and the tubular member to lock such together, the second mode employing a ball mounted upon the connecting member which is to cooperate with a conventional ball socket attached to the vehicle, a clamp bar employed to lock the connecting member to the tubular member.
Abstract: A compact, light weight and easily detachable power unit for driving a golf bag cart by means of an electric motor carried by the unit. The unit includes an articulated frame having an attaching portion which is quickly attachable to or detachable from the frame of the golf bag cart and this attaching frame also carries the battery. The articulated frame also includes a motor and wheel driving frame which is pivotally mounted to the attaching frame about a generally vertical axis and extends generally downwardly and rearwardly therefrom and has a ground wheel at the lower end thereof for castering relative to the attaching frame. An electrical control circuit includes an electric motor carried by the wheel driving frame and also includes the battery, a transistor, a resistor, and a manually operated variable resistor controller on the golf bag cart to infinitely vary the driving speed of the motor.
Abstract: This invention combines a power booster unit with ready means of attachment to a bicycle, without altering the bicycle in any way, whereby the booster unit drives independently and to the rear of the bicycle through the booster wheels and may be simply detached.
Abstract: A heavy duty motor vehicle has a main frame with a forward axle and steerable ground wheels. A power unit sub-frame carrying a rear axle is releasably secured to the main frame, and includes an engine assembly which is located at an intermediate position between the axles. The unit may also include a fifth wheel assembly whereby it becomes a towing vehicle for a further trailer unit or units.