Showing papers on "Drive wheel published in 1980"

Engine sound simulator

Abstract: A remote controlled car driven by an electric motor energized with a battery has an internal combustion engine sound simulator that transmits signals to one or more remote receivers having audio outputs that simulate an internal combustion engine driving the car. The engine sound simulating apparatus has a digital switch sensor responsive to the speed of rotation of the drive wheel of the vehicle for producing an output signal. A signal converting circuit receives the output signal from the digital switch sensor and provides a signal having a frequency that changes in response to ranges of speed of the car. A transmitter means connected to the signal converting circuit transmits the signals to the remote located receivers. The receivers have speakers for producing an audible output simulating the operation of an internal combustion engine.

Three wheel drive vehicle

Abstract: A motor vehicle having a pair of front drive wheels and a rear steerable drive wheel mounted on a main frame. A sub-frame secured to the main frame intermediate the front and rear drive wheels carries an internal combustion engine and a pump assembly. The pump assembly has a first pump operable to deliver fluid under pressure to fluid operated motors operably connected to the front drive wheels and a second pump operable to deliver fluid under pressure to a fluid operated motor operably connected to the rear drive wheel. The internal combustion engine and pump assembly are located below a seat and floor with both the engine and pump assembly positioned transversely of the main frame of the vehicle. The rear wheel is mounted on the frame for angular movement about a generally upright axis. A fluid operated double acting piston and cylinder assembly operates to angularly move the rear wheel about the upright axis to steer the vehicle.

Vehicle with adjustable steering axis angle control

Abstract: A vehicle powered to move about on a front drive wheel and rearward supports, preferably a pair of wheels. The rear wheels are mounted to the frame by a steering control mechanism that facilitates pivotal steering movement of the rear wheels about two axes - a steering axis and a steering control axis. The steering control axis is coaxial with the rear wheels and is perpendicular to the steering axis. The angle of the steering axis may be varied about the steering control axis. Steering is accomplished by the rider shifting his weight from one side of the vehicle to the other. He may shift the steering axis to a position substantially parallel with the ground surface so the frame may be tilted like a bicycle in wide, sweeping high speed curves. The rear wheels then track behind the front wheels as the frame tilts about the steering axis. If the rider shifts the steering axis to a position nearly perpendicular to the ground, he may negotiate short radius, low speed turns. In this situation, the rear wheels turn about the steering axis and the frame tilts only slightly in response to leaning by the rider. Shifting of the steering axis is accomplished by lifting or lowering handles affixed to the axle.

Dental hygiene appliance

Abstract: A device for applying dental floss between the teeth including a frame having a handle and a trigger. A motor and drive shaft is mounted in the frame, including motor control means operably connected to the trigger and power source means for supplying power to the motor. A drive wheel and a plurality of guide pulleys are positioned in the frame to define a path for a closed loop of dental floss under suitable tension. The path includes an open span sized to permit passage of the dental floss between a person's teeth. The drive wheel is positioned to engage the drive shaft to cause rotation of the wheel by the motor. In a preferred embodiment, the frame includes a first portion mounting the motor to permit the drive shaft to extend outward from the first portion of the frame and a second portion mounting the guide pulleys and the drive wheel to position the dental floss loop. The second portion has a drive shaft receiving opening positioned to permit the drive shaft to engage the drive wheel upon insertion of the shaft into the opening. Mounting means removably mounting the first and second portions to one another in a drive shaft engaging position is provided. In a preferred embodiment, the mounting means includes a pair of bayonet rods mounted on the first portion of the frame extending outward in triangular relationship with the drive shaft and the second portion of the frame defines a pair of bayonet accepting means which hold the two parts of the frame together during operation.

Snow/ice melter for automotive vehicles

Abstract: An improved ice and snow melting system employing motor vehicle hot exhaust gases includes a stub pipe for bolt-on clamping to the rear of a motor vehicle exhaust pipe in parallel-spaced realtion, in forward direction the stub pipe divides in a "Y" shaped configuration; from each arm of the "Y" a flexible tube leads forward and outward to a portion adjustable to heat a vehicle drive wheel and road surface traction area; for valving hot gases from the motor vehicle exhaust into the system a flexible tube is applied in "U" shape and through frictional fit to connect the rear of the vehicle exhaust pipe with the stub-tube; when not in use the flexible tube may be removed and stored in the trunk of the motor vehicle.

Vehicle drive wheel suspension

Abstract: A vehicle with body-mounted differential and swing-type live axles connected to the driving wheels has a dead axle in the form of a rack consisting of two cross-members spaced fore and aft of the differential and two longitudinally extending wheel bearing support members rigidly interconnecting the cross-members inboard of the wheels.

Shift mechanism for a five speed transaxle transmission

Abstract: A multiple speed ratio power transmission mechanism for an automotive vehicle adapted to be mounted in a transverse position with respect to the fore-and-aft centerline of the vehicle includes a torque input shaft having input gearing fixed thereto. A first countershaft has gearing journalled thereon meshing with the torque input gearing, and synchronizer clutches adapted to be moved selectively to produce a driving connection between the input shaft and the countershaft. A second countershaft has a fifth forward speed gear in meshing engagement with a gear on the input shaft and a synchronizer clutch that can be moved to produce a driving connection between the input shaft and the second countershaft. A differential gear establishes a driving connection between both countershafts and each of two drive wheel axle shafts. First and second shift fork rails are adapted for axial and rotary movement to produce engagement and release of the synchronizer clutches. A shift selector controls the shift shaft and has a relay lever for transferring the motion of the selector shaft directly to the first shift rail, indirectly to the second shift rail through a first bellcrank, and indirectly to a reverse idler through a second bellcrank. An interlock sleeve is mounted on the first shift rail and provides a selector pin for selective engagement directly and indirectly with each of the three shifting forks. A blocking sleeve surrounds the interlock sleeves and prevents engagement of the first shift rail with the unselected shift forks.

Wheel spin control circuit for car - has individual sensors on each drive wheel linked to throttle control with comparator

Abstract: Each drive wheel (1) is fitted with a speed sensor linked to a central electronic control which compares the outputs with a road speed signal and controls the throttle setting to ensure that the signals are brought to the same value. The signals are processed through an amplifier and a comparator circuit. The circuit provides a rapid response to wheel spin. If the two sensors provide different readings, i.e. one wheel spins, then the engine torque is reduced by lowering the reference signal until the speed difference is a minimum.

Driverless vehicle with two way accumulation

Abstract: A driverless vehicle has at least one drive wheel for cooperation with a drive tube. The vehicle has two actuators coupled to the drive wheel for rotating the drive wheel to an accumulation position. Each actuator can be selectively rendered inoperative. The vehicle can be propelled by way of the drive wheel and drive tube in opposite directions along a track with either end of the vehicle being the front end.

Manually or remote operated switch - has motor and gear train mounted on side, driving rotor with projecting operating finger

Abstract: The switch which can be operated by hand or by a motorised drive, has a motor (5) with a right angled helical drive (6,7) on its drive spindle. The wheel (7) driven by the spindle (6) is connected by a gear train (8 to 11) to a rotor (13) with an arm (16) projecting from it which forces over the switch arm (4) which can also be manually operated. The motor is a reversible motor. The gear train includes a gear pinion (10) with a gap (10a) in its teeth, these teeth meshing with a limited number of teeth (11a) on the final drive wheel (11) which is adjacent to the rotor. This rotor incorporates a gap holding a U-shaped leaf spring between the ends of which is retained a spigot (12) projecting from the rotor.

Pavement patching apparatus

Abstract: Self-propelled pavement patching apparatus is provided and includes a backhoe whose bucket has teeth and a cutting blade at opposite ends thereof and screeding edges underneath, another patch material distributing and screeding device mounted on the apparatus for movement therewith, a hopper for dispensing patch material to a conveyor for selective delivery of patch material to the backhoe or the screeding device. The apparatus is tricycle-type having two wheels at the outside and a third wheel for driving and steering. A roller adjacent one side wheel provides for compacting patching material over pavement defects, and the roller is lowered to raise that wheel from the pavement to form an outrigger corresponding to a conventional outrigger foot adjacent the other outside wheel. A movable outer hopper wall can be lowered for reception of patch material from a dump truck and raised toward a more nearly upright position to facilitate delivery of patching material to the conveyor and for towing vehicle clearance. The hopper is expansible widthwise of the apparatus, and an extensible guide provides a pendent arm contacting the pavement for viewing by the apparatus operator over the hopper for accurately locating the apparatus relative to pavement features. A towing link pivotably mounted adjacent the drive wheel has a towing eye for engagement with a hitching hook on a truck and is pivotable downwardly after engagement for lifting the drive wheel from the pavement for towing the apparatus behind the truck.

Live spindle vehicle drive wheel assembly with axially moveable axle

Abstract: An assembly maintenance tube maintains a live spindle mounted within a bore of a vehicle mounting component. The maintenance tube has a central aperture for receiving in a spaced relationship a drivable axle. The axle is drivingly connected to the live spindle in a manner which allows axial movement of the axle relative to the spindle to relieve stress in the drive train which drives the axle.

Vehicle drive unit

Abstract: A drive unit for a vehicle having two juxtaposed drive wheels comprises an engine, an axle for supporting on its ends the drive wheels, a final output gear operatively coupled with the engine and mounted on the axle adjacent to one of the drive wheels, and a power transmitting assembly mounted on the axle adjacent to the other drive wheel, the engine being located between the final output gear and the power transmitting assembly. A crankshaft extends parallel to the axle and supports on one end a flywheel for a generator and on the other end a clutch including a speed changing device. The drive unit is unitized, compact in size, simple in structure, and requires a minimum number of parts.

Remote controlled sports game

Abstract: A remote controlled sports game having first and second figures operable on a playing surface with each of the figures having receivers tuned to different frequencies for operation by radio transmitters with the control of movement of the figures against a game object such as a ball being effected remotely. A drive system is provided for driving two wheels simultaneously with reversal of direction of the motor operating a cam slide member through a spring clutch to lift one drive wheel for providing a tight turning radius.

Variable-speed transmission device with positive action

Abstract: This invention deals with a variable-speed transmission device which provides a positive or mechanical connection between its drive and driven shafts. The transmission device of the present invention is comprised of a drive wheel and a driven wheel which are positioned adjacent to each other in a generally parallel relationship. This device also includes means for transferring the rotary motion of the drive wheel to the driven wheel such that the speed of the driven wheel relative to the drive wheel is controlled by the position of the driven wheel relative to the drive wheel. In this way, the transmission device of the present invention is capable of producing within a finite range of gear ratios an infinite number of different gear ratios to thereby control the speed of its driven shaft within very small limits.

Compact drive moves arm of automatic manipulator - using belt attached at ends to arm ends for longitudinal movement

Abstract: The drive moves the horizontal arm longitudinally using a belt (11) looping over a drive wheel (14). The ends of the belt are fixed to opposite ends of the arm (1). Two rollers (12,13) change the direction of the belt so it lies parallel to the arm. The rollers are located one on each side of the drive wheel. The belt is in contact with the drive wheel for more than 180 degrees. The drive wheel is driven by a motor via a second belt system. The second belt system comprises an endless belt (18) looping over a large wheel (17) fixed to the drive wheel's axis and over a small wheel (19) rotated by the motor (3).

Driveless vehicle with speed control cam

Abstract: A driverless vehicle has at least one drive wheel mounted on a base and oscillatable about the axis of its support between a drive position and an accumulation position. A cam is supported on the base by a horizontal parallelogram linkage with one leg of the linkage connected to the drive wheel support for moving the drive wheel support between said positions. A ground supported cam follower is provided for actuating the cam.

Two-speed rotary drive for motor vehicle alternator - brings in second belt drive at low speeds to drive alternator at higher rates using electromagnetic clutch controlled by drive shaft speed

Abstract: The two-speed drive uses two belts (6,11), a number of pulleys and an electromagnetic clutch. The first belt (6) passes around a drive wheel (1), a pulley wheel (2) carried by an intermediate shaft (3) and a second pulley wheel (4) coupled via a free wheel with the alternator drive shaft (5). The second drive belt (11) passes around two pulley wheels (10,12) respectively carried by the alternator drive shaft (5) and the intermediate shaft (3). The electromagnetic clutch (14) is controlled in accordance with the speed of the alternator shaft (5) to couple the two pulley wheels (2,12) carried by the intermediate shaft (3) at low speeds, to allow the alternator shaft to be driven at a higher ratio by the second drive belt (11). The drive does not require modification of the normal transmission from the engine. It prevents the loss of battery charge at low engine revs.

Driveless vehicle with speed control

Abstract: A friction driven driverless vehicle includes a frame with support wheels adapted to ride on rails. A drive wheel on the frame is provided for frictional contact with a drive shaft parallel to the rails. A motor driven cam is provided on the frame for controlling the position of the drive wheel relative to the drive shaft. The cam is coupled to the drive wheel by a cam follower and linkage.

Transfer truck system

Abstract: Straight sections of track each having a drive tube are coupled together by a curved track section. Between the tracks at the curved section, there is provided a series of drive shafts whose ends are not aligned with the ends of the drive shafts in the straight track sections. Driverless trucks are provided with at least two drive wheels for frictional contact with drive shafts in the straight track sections and a discrete drive wheel for cooperation with the drive shafts in the curved track section.

Separating device for top sheets of sheet stacks - uses roller driven by drive wheel and has swivel guide bearing on turning axis of drive wheel

Abstract: The sepn. device is for the outermost sheet of a sheet stack with at least one sepg. roller which adjoins the outermost sheet for its transport in a pre-determined direction relative to the sheet stack. A drive wheel drives the sepg. roller with the latter having a swivel guide bearing round the turning axis of the drive wheel, and the movement path of the sepg. roller cuts across the surface of the sheet stack. The position of the sepg. roller (3) and the direction of rotation of the drive wheel (7) are chosen to ensure that with the sepg. roller blocked and the drive roller driven during normal operations the sepg. roller is pressed against the sheet stack.

Planetary synchronizing device

Abstract: A synchronization system for a sheet feeding conveyor in printing presses allows the compensation of dimensional changes of the drive of the conveyor wheel. In a planetary synchronization system the length of one elastic endless conveyor (16) is adjusted to maintain the length of the conveyor is equal to a multiple of the circumference of a drive wheel (12) which can be driven at a variable speed when the diameter of the drive wheel exchange.

Method and apparatus for controlling the speed and direction of a vehicle

Abstract: Method and apparatus for controlling the speed and direction of a toy vehicle by radio, including two motors (10,11) each connected to a separate drive wheel (2, 3) the vehicle including one or more pivot wheels (13), such that the speed and direction of the vehicle is proportional to the relative speeds of said motors (10, 11), and radio frequency transmitting and receiving means such that the speeds of said motors (10, 11) required to produce a desired movement are encoded onto a transmitted signal, decoded by said receiving means, and applied to said motors (10, 11).

Automatic two-speed drive system

Abstract: An automatic two-speed drive system for a vehicle having two drive wheels. A first drive wheel is connected to the drive source through a low-speed hub which is disengaged when the wheel reaches a pre-determined rotational speed. The second drive wheel is connectable to the drive source through a high-speed hub which becomes engaged when the drive source reaches a pre-determined rotational speed.

Strap feeding and tensioning assembly

Abstract: Strap feeding and tensioning apparatus is provided for use in a strapping machine to feed steel or plastic strapping in a loop around an object to be strapped and tension the strap loop about the object, providing maximum gripping force on the strap and minimum marring thereof The apparatus includes a motor-driven drive wheel (40) geared to a feed wheel (70), the drive wheel (40) and feed wheel (70) respectively having circumferential strap-engaging surfaces which cooperate frictionally to grip the strapping therebetween and move the strapping in a tensioning direction in response to rotation of the drive wheel (40) The axis of rotation of the feed wheel (70) is shiftable about a fixed axis to accommodate movement of the feed wheel (70) toward and away from the drive wheel (40) tensioning of the associated strap (11) exerting a resultant force on the feed wheel (70) tending to effect movement thereof about the fixed axis in a direction to increase the frictional gripping force exerted on the associated strap (11) by the feed wheel (70) and the drive wheel (40)

Riding mower including belt drive system

Abstract: The drive system includes a drive pulley operably connected to a prime mover for selective rotation in opposite directions, a driven pulley, an endless belt trained about the drive and driven pulleys, an arm having a first end rotatably supporting the driven pulley and a second end mounted for pivotal movement of the arm and the driven pulley, a drive wheel, such as a sprocket, mounted on the first end of the arm for common rotation with the driven pulley, a rotatably mounted driven wheel, such as a sprocket, and an endless flexible member, such as a chain, trained about the drive and driven wheels for rotating the driven wheel in response to rotation of the drive pulley, whereby the resultant force applied on the drive wheel by the flexible drive member, when the drive pulley is rotated in either direction, is in a direction tending to pivot the arm and the driven pulley about the arm pivot axis in a direction for applying tension on the slack side of the belt.

Self-propelled record cleaner

Abstract: A self-propelled record cleaner comprising a cleaning brush, a drive wheel, and a battery-operated motor unit for driving both of the cleaning brush and the drive wheel in the opposite directions with respect to each other. The self-propelled record cleaner has a bearing hole adapted to receive a turntable spindle when the record cleaner is placed on a disc record mounted on the turntable. This self-propelled record cleaner can run on the disc record around the turntable spindle while brushing or cleaning dusts off from the disc record when the battery-operated motor unit is in operation. Some of components of the record cleaners are mounted in a casing at a position where they can be supported above a non-grooved area of the disc record.

Transmission in electrical traction vehicle with integrated gearbox - has link mechanism on remote side of motor regulating axis of rotation of box

Abstract: The transmission system is for an electrically driven traction vehicle where the drive motor forms an integral assembly with the gearbox. The flywheel is attached to a hollow shaft incorporating the drive shaft. The hollow shaft supports part of the weight of the drive motor. The drive motor is linked to the chassis at the remote end. There is a second link mechanism on the remote side of the drive motor which will regulate the axis of rotation of the gearbox assembly. The link coupling (10) located between the hollow shaft of the gears (7) and the drive axle (1) or driving wheels (13) has a centering function. It consists of three link levers forming ball joints with the drive wheel.

Constant position stopper for automobile

Abstract: PURPOSE:To stop an automobile at a constant position even with accelerating condition automatically, by turning unidirectional turning roller via the shaking movement of free rollers. CONSTITUTION:When an automobile in rear wheel drive goes backward, since the unidirectional turning roller 3 is in rotational free state because the nail 8 and the nail wheel 7 are latched, the rear drive wheel 23 of the automobile runs over the roller 3. Further, it goes back further to lift up the free roller 5 resulting in turning downward the shaking arms 4a and 4b against the spring 17. Thus, the regulation pin 11 implanted on the arm 10 swings on the cocentric circle of the roller 3 and it release the latch from the nail wheel 7 by giving turn to the nail 8 while sliding in the long hole 13, allowing the roller 3 to turn in response to the rotation of the drive wheel 23, and the drive wheel 23 is disabled to run because it is supported with the rotational free roller 2 and roller 3. Accordingly, the automobile even with accelerating state can automatically be stopped to a constant position.

Electric rail vehicle slip measuring system - is used to maintain max. adhesion between drive wheel and rail by correction of stator frequency

Abstract: The slip measuring system uses the control value for the torque regulation of the AC drive motor as an indication of normal acceleration, for controlling an integrator (5). The output of the latter determines the frequency (F1) supplied to the motor circuit, being an upwards corrected value of the stator frequency (F1). The integrator (5) also receives a signal which is a first order periodic differential of the difference between the required and actual torque, upon a drop in torque following the max, torque being exceded, for reducing the stator frequency (F1) to correct the slip.