Showing papers on "Drive wheel published in 1983"

Motorcycle drive wheel suspension system

Abstract: A suspension system for the drive wheel of a motorcycle driven by a chain cooperating with sprockets on the engine and wheel shafts. The suspension system comprises a linkage arrangement associated with the swing arm, with the linkage parts positioned in the region between the wheel and the motor, with the swing arm substantially in a plane containing the axes of the engine and wheel sprockets, and with linkage components defining or approximating a parallelogram configuration.

Anti-slip system for wheeled vehicle

Abstract: An anti-slip system is provided for a wheeled vehicle having a drive wheel and a driven wheel A drive wheel speed sensor senses a rotational speed of the drive wheel to produce a first sensing signal while a driven wheel speed sensor senses a rotational speed of the driven wheel to produce a second sensing signal A control unit is responsive to the first and second sensing signals for outputting a control signal representative of a slip rate of the drive wheel A drive control device is responsive to the control signal for controlling drive force of the drive wheel to prevent a slip thereof

Wheelchair and attachment therefor

Abstract: An improvement is made in a wheelchair having front caster wheels and rear drive wheels whereby the seated occupant can unaidedly cause the wheelchair to have lateral mobility and can remove the drive wheels. Said modification is achieved by jacking apparatus associated with each drive wheel. The jacking apparatus has a lever adapted to be moved to a self-locking position which downwardly urges a connecting rod causing telescopic displacement of a rear caster wheel. Said downward displacement of the rear caster wheel lifts the rear drive wheel off the underlying support surface.

Belt tensioning mechanism

Abstract: A belt tensioning mechanism is provided for use with a vehicle having an axle pivotably connected to a frame of the vehicle with inextensible belts entrained about wheel assemblies mounted on either side of the vehicle for transmitting tractive effort to the earth. Some systems provide tensioning of belts by producing a separating force between only the wheel assemblies on one side of the vehicle independent from the tensioning of the other side while others provide tensioning of track having sprocket driving members by using bulky complicated mechanisms for providing the tensioning of the track and to provide relative motion of the front axle from one side to the other. In the subject arrangement, an axle is connected to a frame by a swivel bearing being slidably disposed on a pin, such that, the axle moves longitudinally relative to the frame while still being able to swivel about the pin. Furthermore, an adjusting mechanism is provided to produce the force necessary to sufficiently tension the belts to provide frictional drive between the belts and the drive wheel assemblies. In one of the embodiments, the adjusting mechanism includes a force generating mechanism responsive to fluid pressure transmitted thereto from a pump. This arrangement allows the axle to move relative to the frame in the longitudinal direction in the event that a foreign object passes between one of the belts and its respective wheel assembly without requiring a large bulky mechanism that would be impractical for use on large industrial vehicles.

Anti-slip apparatus for wheeled vehicle

Abstract: An anti-slip apparatus is provided for controlling a slip rate of a drive wheel of a wheeled vehicle to the optimum level. The vehicle has an engine, a fuel control device for controlling a supply of fuel-air mixture to the engine, and an accelerator member operatively connected to the fuel control device by an operating wire. Drive and driven wheel speed sensors sense the rotational speeds of the drive and driven wheels of the vehicle, respectively. A wire control device is operatively connected to the drive and driven wheel speed sensors and is operable to activate the operating wire to reduce the supply of fuel-air mixture from the fuel control device to the engine when the ratio of the rotational speed of the drive wheel to the rotational speed of the driven wheel exceeds a predetermined level.

Airline electrical ground cable feed out and retrieval storage apparatus

Abstract: In an aircraft cable feed out and retrieval storage apparatus, a storage compartment communicates with an assembly housing, having an inclined wall connecting between the two, with the assembly housing incorporating a base that mounts a pair of friction wheels, one of the wheels being an idler wheel, that is shiftable, and can exert pressure upon the ground cable arranged intermediate thereof, so that upon energization of a motor operatively associated with the other frictional drive wheel, the ground cable can be fed out, or retrieved, as required; the apparatus can be installed suspended to the underside of the passenger tunnel of an airline terminal, supported upon legs for mounting to the ground, or be conveyed upon wheels, and moved through actuation of a handle. The base of the assembly housing is pivotally mounted, or removable, to provide immediate access to its operating components and to facilitate their prompt servicing.

Intelligent driverless vehicle

Abstract: An intelligent driverless vehicle rolls on a track and has a pair of drive wheels which engage with a rotating drive shaft. The angular position of the drive wheels relative to the drive shaft determines the speed of the vehicle. Each vehicle has a microcomputer associated therewith, a position encoder for supplying information regarding the position of the vehicle to the microcomputer, an angular position encoder for providing information regarding the angular position of the drive wheels to the microcomputer for the computation of vehicle speed, and a drive wheel control means and associated linkage for changing the angular position of the drive wheels and thus vehicle speed in response to commands from the onboard microcomputer. The microcomputer communicates with a central computer via a bidirectional communications link. The central computer controls the speed and acceleration of each vehicle by selectively communicating with the microcomputers on board the vehicles.

Ride-on toy vehicle with front wheel drive and outboard front wheels

Abstract: A child's pedal-powered vehicle simulating a four wheel drive vehicle includes a body on which there is rotatably supported a pair of rear wheels. Centrally of its front end portion is a drive and steering assembly which is rotatable within the body to effect rotation of a pedal-powered drive wheel at lower end thereof to effect turning motion of the wheel and thereby the vehicle. Mounted on the front end portion of the body outboard of the drive wheel are a pair of outboard front wheels which will readily move vertically on the body to adjust to differences in ground contour while presenting little resistance to turning of the vehicle. In one embodiment, there is included means for limiting the vertical movement so that these wheels will stop upward movement at a point where overturning might occur.

Disc brake arrangement for steering and traction unit

Abstract: A brake system for wheeled vehicles, especially lift trucks having one motorized drive wheel driven by a vertically mounted electric motor through a gear train. The axis of the motor is offset from the steering axis of the wheel and a disc brake is mounted at the end of the motor shaft remote from the gear train. The reaction of the disc brake is grounded to the truck frame.

Launching platform for inertia vehicle

Abstract: A toy vehicle energizer and launcher (10) having a draw string energizing mechanism (30) with a drive spool (40) receiving a draw string (38) and a return spring (46). The drive spool (42) is connected to a toothed driving wheel (54) by a one-way clutch (67) which allows a vehicle (34) held in the launcher (10) to be energized by a number of pulls on the draw string (38). A retaining and release means (32) coacts with a drive wheel (56) of the toy vehicle (34) and a toothed driver (54) to allow the vehicle (34) to be held within the launcher (10) during energization, and to be released after energization by manual actuation of the retaining and release means (32).

Fluid filtering device

Abstract: A filtering apparatus with interconnected, rotatable drive wheel apparatus and driven wheel apparatus for rotating a pump impeller (32), preferably dual drive and driven pulley wheels (36 and 40) and an interconnecting belt (41) is described. A motor (13) is mounted on the underside (12a) of a housing (12) adjacent an outside sidewall 100a of a tank (100) which rotates the drive pulley wheel (40), the belt (41) and the driven pulley wheel (36). The driven pulley wheel (36) is mounted on a shaft (33) supporting a submerged impeller (32) inside a pump body (15). The filtering apparatus with the drive and driven wheel (36 and 40) provides positive fluid flow without priming and good balance for the filtering apparatus when mounted on the tank (100).

Combined contact device and central winding device for webs of material

Abstract: In a combined contact device and central winding device for webs of material, especially for films, which has a contact roller for driving a roll, a transfer device for transferring the roll into a central winding drive and a cutting means for cutting the incoming web of material when the rolls are changed, the new winding shaft in each case can be driven by means of a wheel and disc drive (friction wheel drive) and can be lowered onto the start of the incoming web of material and the contact roller once the incoming web of material has been cut. A drive wheel which is designed to engage with the central winding drive when the device is at a standstill is brakeably mounted on the winding shaft by means of a free-running hub. The cutting means has a carriage which can travel transversely to the running direction of the web of material, is mounted so as to be pivotable to a limited extent and whose cutting blade runs off on a hard cutting roller. The contact roller acts as a cutting roller.

Automatic diagnostic device for a four-stroke-internal combustion engine

Abstract: Three impulse transmitters are provided of which one co-acts with an impu mark on the flywheel, another with an impulse mark on the camshaft drive wheel and a third with the teeth of the ring gear on the flywheel of the engine. The impulse mark on the flywheel enables a precise determination of a reference angle position of the crank drive and the impulse mark on the camshaft pinion by triggering a window enables correct association within the working cycle which covers 720° of crank-angle. The time spacing and amplitude of the triggered window are controlled by the tooth sequence on the ring gear.

Belts or ropes suitable for haulage and lifts

Abstract: A belt for use in a winding engine, winch, haulage or lift is formed by one or more ropes or cords on which a rubber coating is bonded which may be formed with teeth to engage a toothed drive wheel

Tool cable feeding system

Abstract: Apparatus for the control of a well fishing line and operable at a location substantially above the wellhead to enable accommodation of cable mounted well tools, line weights, and the like. The apparatus incorporates a cable engaging drive wheel with a reversible hydraulic motor in direct-drive relation with the drive wheel. A pressure roller is in opposed association with the drive wheel and, through a hydraulic cylinder unit, is manipulable to vary the pressure engagement of the cable with the drive wheel for enhanced control of both the introduction and withdrawal of the cable. Both the hydraulic motor and the hydraulic cylinder unit are operable from a remote control station, normally at ground level, for a continuous monitoring of the apparatus notwithstanding its elevated location relative to the wellhead.

Tractor scraper hitch steering and suspension system

Abstract: A tractor scraper hitch steering and suspension system wherein a tractor drive wheel axle frame is pivotally connected to a tractor main frame to permit vertical movement of the tractor drive wheels relative to the tractor. Two hydraulic cylinders are pivotally connected between the tractor drive wheel axle frame and a cross arm forming a part of a hitch assembly that secures the tractor to the scraper. The hydraulic cylinders dampen vertical bounce movement that occurs during operation and control tilting or rolling motion between the tractor portion and the scraper portion that occur about their common longitudinally extending axis. A locking brake is provided to resist vertical motion of the tractor drive wheel axle frame to stabilize the depth of a cutting edge of the scraper during operation and obtain a steady depth of cut. A pressurized hydraulic system including an accumulator, a source of fluid pressure, fluid control valves, restrictor orifices and a sensor system are effective to maintain a range of predetermined vertical positions of portions of the articulately connected vehicle regardless of the weight of the load being received, carried by, or discharged from the scraper bowl to thereby control riding characteristics when encountering bounce, pitch or rolling conditions.

Three-wheeled adjustable vehicle

Abstract: A motor driven vehicle for traversing the interior of a pipe or conduit comprises a pair of arms pivoted to each other at one pair of ends, a drive wheel the axle of which may coincide with the pivot, a swiveling wheel carried at the other end of each arm and a spring positioned to pull the arms toward each other so that the dimension of the vehicle across a pipe is automatically maximized. The vehicle thus tends to position itself on the longest axis of any cross section of the pipe. The drive wheel may be constructed with rim segments which rotate about axes tangent to the means circumference of the rim.

Motor vehicle roof arrangement of the type interchangeably driveable by both motor and crank drives

Abstract: A motor vehicle roof arrangement having a cover that can be slid and/or tilted out with respect to an opening in the roof. The cover is movable by means of an electric motor through at least one incompressible driving cable. The electric motor is mounted at a front side of the opening in the roof on a stationary part of the roof, and by means of a secondary drive wheel of an intermediate drive, drives a pinion that is engaged in the driving cable. The pinion is arranged in a front rain groove of a roof frame essentially on the center longitudinal axis of the roof of the motor vehicle. The intermediate drive is located in a gear housing to which the electric motor is flanged to form a drive unit. A secondary drive gear of the intermediate drive is detachably connected with a shaft of the pinion by mating internal and external gear elements. The drive unit comprising the electric motor and the intermediate drive can be exchanged for a hand crank having gear elements that correspond is shape to gear elements of the secondary drive gear without modification to the remainder of the roof arrangement.

Motorized hand torch

Abstract: A semi-automatic, motorized hand torch, or gas cutting machine, that is capable of being freely operated with one hand and characterized by device head having a cutting torch tip, respective conduit means for supplying to the tip preheat oxygen, cutting oxygen and fuel gas, a drive cylinder journalled for rotation about the tip, a drive wheel engaging the peripherally outer cylindrical wall of the drive cylinder so as to be driven thereby and moveable longitudinally therealong so as allow adjustment in height of the tip, a motor and transmission drivingly connected with a drive cylinder, control for controlling the motor, housing and bracket for supporting the drive wheel adjacent the tip. Also disclosed are specific preferred embodiments including those in which respective small and large circle cutting attachments are employed and wherein an angled cutting wheel and strut are employed for cutting at an angle, as well as specific preferred structure.

Roller transport device

Abstract: The invention relates to a roller transport device with a transport belt for transporting the goods, which belt comprises shafts, which are disposed parallel to each other, mounted in longitudinal holders and are driven from outside the transport belt, having transport rollers mounted non-rotatably thereon, the shafts with their transport rollers being rotatable upon braking or stoppage of the transport goods in spite of and irrespective of the fact that the drive element continues to operate. The subject of the invention is characterised in that each shaft is connected to the drive element by means of a loosely mounted drive wheel and friction discs assigned to the latter at the sides so as to be fixed in terms of rotation, in such a manner that the drive wheel and the two allocated friction discs are movable in a sliding manner with respect to each other when a predetermined drive force transmitted to the shaft is exceeded.

Orbital speed reducer with compensation coupling

Abstract: A speed reducer having an orbitally driven rotor, mounted for free rotation on a rotor drive wheel driven along a rotary path by a drive shaft, has a perimeter defined by an epitrochoidal curve that simultaneously engages each of a series of rollers arranged in a circle around the rotor, the number of lobes on the rotor being one less than the number of surrounding rollers. Rotation of the drive shaft causes the rotor to move orbitally and to rotate with a speed reduction equal to the reciprocal of the number of lobes. The rotor drive wheel is driven by a compensation coupler that prevents radial forces of the rotor and the rotor drive wheel, such as may be generated as a result of inaccuracies in machining, temperature changes, etc., from being transmitted to the drive shaft where they could be translated into large forces. With the present arrangement, the drive shaft provides only a rotary thrust on the rotor drive wheel and is shielded from reaction movements of the rotor and rotor drive wheel. The rotor drive wheel is driven along an orbital path by a variable-length crank arm that extends into a radial opening in the rotor drive wheel and makes sliding engagement with opposite faces of the radial opening. The driving surfaces that engage the faces of the radial opening form, in a plane perpendicular to the axis of the drive shaft, arcs of a circle equal in diameter to the width of the radial opening. The radial opening is long enough to permit the rotor drive wheel and the rotor to follow the requisite orbital path. The crank arm includes an expansion slot that divides it into two fingers that embrace opposite sides of the radial opening. For smaller units, the spring quality of the fingers is relied upon to maintain firm engagement between the fingers and the faces of the slot. In larger units, an adjustment screw permits changing the spacing between the fingers to precisely fit the width of the crank arm to the width of the radial opening. In either case, the only radial forces on the drive shaft are those generated by the torque of the drive shaft.

Brake device for a cycle

Abstract: Multi-geared bicycles have the drawback that they generally lack a foot operated brake. An improvement in bicycles has an actuating arm (8) which is connected to a free wheel device (4, 7) coupled to the crank portion of the bicycle and provided to block in a direction opposite to the blocking direction of the free wheel device (49, 52) provided in the drive wheel of the bicycle. The actuating arm is provided to act upon brake devices, preferably acting upon the rim or rims of the bicycle, and also upon a device for permitting pedalling even after a heavy braking operation. This device comprises means (56, 59) to render the free wheel mechanism in the driven wheel of the bicycle in-active. A slipping coupling (1, 3, 9, 10) is further provided between the actuating arm and the crank shaft. The device thus makes braking by means of leg force possible.

Camera for picking-up colored pictures

Abstract: In a cassette for a camera, two filter wheels are provided. Each filter wheel is held between two guide wheels and a drive wheel. The drive wheel is driven by a miniature electric motor. For each filter wheel, one associated guide wheel is connected to a lever. By lifting the lever, the filter wheels are released and can be taken out of the cassette. A code field is provided along the circumference of each filter wheel. Each code field is read by reading means. In this way, each filter element on each filter wheel can be moved into the optical path of the camera. The electric connections terminate in a plug which during insertion of the cassette mates with a socket in a rear wall of the camera. The cassette may also be provided with a test-slide projector for focusing the pickup tubes in a camera.

Quick release spring powered toy vehicle

Abstract: A toy vehicle (10) is provided having a configuration to simulate any desired vehicle. The toy vehicle includes a base (12) with a unitary spring-powered motor assembly (16) having a rear drive wheel assembly (18, 20), pivotably mounted within the base. The axle of the rear drive wheel assembly includes a detent (32) which coacts with an integral arm (36) formed in the base to lock the unitary spring-powered motor and drive wheel assembly in the wound position. Upon tapping of a finger against the top of the housing, the housing rotates downwardly to release the motor and allow the vehicle to accelerate forwardly.

Seat reclining mechanism

Abstract: A seat reclining mechanism has a first member 2 attachable to a seat cushion and a second member 4 attachable to a seat back. The first and second members are pivoted together through a gear mechanism 1 which has a drive shaft 6, rotation of which causes the seat back to pivot relative to the cushion. The drive shaft 6 is driven by a ratchet drive 8 in place of the conventional hand wheel. The ratchet drive may comprise a handle 13a from which an actuating bar 17 protrudes. Depression of the bar 17 into the handle 13a engages a pawl 15b with a toothed drive wheel 14 coupled to the drive shaft 6. Turning the handle about the shaft then rotates the gear mechanism to adjust the angle between the seat back and the cushion.

Vehicle which is driven by muscular power

Abstract: The vehicle which is driven by muscular power is in particular a three-wheeled vehicle. It has foot pedals which are to be moved backwards and forwards independently of one another and are pivotably mounted at one end and on which in each case pulling means engage in a vertically adjustable fashion. The pulling means are coupled to a mechanical gearing system which acts on a drive wheel with an adjustable transmission ratio. In order to be able to set such a vehicle in motion more easily and to be able to ride it more easily whilst on average subjecting the driver to the same degree of loading, a single adjustment device which acts simultaneously on the two coupling points of the pulling means to the foot pedals is present.

Driverless tugger vehicle

Abstract: A driverless tugger vehicle adapted to contact another driverless vehicle and push or pull the latter to a source of power includes a body having support wheels for riding on tracks. The body has a drive wheel adapted for frictional contact with a drive shaft. A contact member on the body is provided for pushing or pulling the other driverless vehicle. A switch actuator is provided on the body for initiating reversal of direction of movement of the body when the contact member is coupled to said other driverless vehicle.

Automatic stamping machine and stamping unit for such a machine

Abstract: Composting machine provided with a printing head (1) having a plurality of rotary wheels (6) coaxial. According to the invention a drive wheel (22) is integral in translation with a cousseau (15) movable parallel to the axis (7) of said wheels 6 and bearing two stepper motors, not 16 and 17). the first (16) allows the sliding of said slider (15) and e second (17) rotates said cemmance wheel (22). Composting pleces capes, son, etc .... during their manufacture.

Floor sweeper with improved drive wheel construction

Abstract: A floor sweeper includes a housing sub-frame having a pair of end partitions which mount a brush for sweeping debris from the floor and drive wheels for supporting the sweeper and rotating the brush. The drive wheels are mounted on either side of the brush for free movement between loaded and unloaded positions against a pair of coupling wheels disposed at opposite ends of the brush axle in response to fore and aft translation of the sweeper over the floor. Each drive wheel mounting includes a curved wire spring having a pair of bent legs at opposite ends thereof. One leg is pivotally mounted to the end partition and the other leg rotatably mounts the drive wheel with its free end riding along an inclined ramp formed in the end partition. When the sweeper is moved in one direction the spring is compressed to urge the drive wheel into driving engagement with a coupling wheel to rotate the brush. When moved in the opposite direction, the drive wheel pivots on the one leg of its wire spring away from the coupling wheel to its unloaded position while at the same time the free end of the other leg of the wire spring rides up the ramp to compress the spring and thereby preload or urge the drive wheel back toward the coupling wheel.