Showing papers by "Toyota published in 1969"
Patent•
07 Aug 1969TL;DR: A seat assembly for a vehicle is composed of a floor, a seat, a movable support member supporting the seat to move relative to the floor, and an energy absorbing member disposed between the floor and the seat as mentioned in this paper.
Abstract: A seat assembly for a vehicle is composed of a floor, a seat, a movable support member supporting the seat to permit the seat to move relative to the floor, a pin or stationary member fixing the seat on the floor to prevent the seat from moving relative to the floor which includes a weak link or releasable section, and an energy absorbing member disposed between the floor and the seat. When an impact in the forward direction is applied to the seat by a rear-end-collision with a following car, if the impact force exceeds a predetermined permissible value, the stationary member is released to permit the seat to move rearwards relative to the floor by the inertia of the seat and passengers, and, simultaneously the energy absorbing member is deformed so as to reduce the impact imposed on the passengers and prevent them from being injured.
57 citations
Patent•
12 Dec 1969TL;DR: An energy absorbing member in the shape of a coil having a plurality of closely spaced loops, being capable of plastic deformation in one direction only, and being rigid in the opposite direction, said energy member being fixed at one end through a force receiving member to a vehicle accessory as mentioned in this paper.
Abstract: An energy absorbing member in the shape of a coil having a plurality of closely spaced loops, being capable of plastic deformation in one direction only, and being rigid in the opposite direction, said energy member being fixed at one end through a force receiving member to a vehicle accessory, such as a bumper, or a seat, and being fixed at the other end through a support member to the vehicle chassis.
37 citations
TL;DR: In this article, structural change of the surface layer of low-carbon steels due to abrading with the same material was investigated by X-ray analysis and electron microscopy, and it was found that the most favorable condition for maximum wear rate is characterized by the formation of a surface layer with small lattice strain and the nature of the first layer formed in the friction process plays a leading role in the wear process.
30 citations
Patent•
05 Dec 1969TL;DR: An energy-absorbing device having an elongated plate-like member formed of a material having a high resistance to plastic deformation and provided with a plurality of spaced narrow slits whose edges lie in close or abutting relation, the slits lying in spaced lines perpendicular to the longitudinal direction of the plate.
Abstract: An energy-absorbing device having an elongated platelike member formed of a material having a high resistance to plastic deformation and provided with a plurality of spaced narrow slits whose edges lie in close or abutting relation, the slits lying in spaced lines perpendicular to the longitudinal direction of the plate, certain of said slits being closed at both ends and said slits being opened only upon application of an external force tending to elongate the plate, said member being fixed at one end through a force receiving member to a vehicle accessory, such as a bumper, and being fixed at the other end through a support member to the vehicle chassis.
21 citations
Patent•
31 Dec 1969TL;DR: In this paper, an antiskid brake pressure control operation characterized by the provision of an alarm apparatus adapted for ignition upon reception of a brake pressure-reducing instruction signal extending beyond a predetermined period is described.
Abstract: An apparatus for performing antiskid brake pressure control operation characterized by the provision of an alarm apparatus adapted for ignition upon reception of a brake pressure-reducing instruction signal extending beyond a predetermined period.
21 citations
Patent•
25 Nov 1969
TL;DR: In this article, a method and apparatus for reducing pollutants in the exhaust gas of an internal combustion engine of the type wherein air-fuel mixture is supplied to the engine combustion chamber through an air suction pipe having a carburettor with a main nozzle and a throttle valve is presented.
Abstract: A method and apparatus for reducing pollutants in the exhaust gas of an internal combustion engine of the type wherein air-fuel mixture is supplied to the engine combustion chamber through an air suction pipe having a carburettor with a main nozzle and a throttle valve, and comprising means for feeding oxygen to the air-fuel mixture in said carburettor when the throttle is between its closed and one-fourth open positions and the engine is operating at light load, means for stopping said oxygen feed and feeding inactive gas to the air-fuel mixture in the carburettor when the throttle valve is approximately between one-fourth and three-fourths open and the engine is operating at medium load condition, and means for stopping said inactive gas feeding and again feeding oxygen to the air-fuel mixture in the carburettor when the throttle valve is between approximately three-fourths and fully open, and the engine is operating at full load condition.
19 citations
Patent•
28 Aug 1969
TL;DR: In this article, an arrangement for controlling discharge of unburnt hydrocarbons from decelerating automobile engine by holding throttle valve of engine carburetor open at position slightly more open that position of valve under idling conditions of engine comprises lever connected to throttle valve for movement therewith.
Abstract: An arrangement for controlling discharge of unburnt hydrocarbons from decelerating automobile engine by holding throttle valve of engine carburetor open at position slightly more open that position of valve under idling conditions of engine comprises lever connected to throttle valve for movement therewith. Blocking structure moves into and out of engagement with lever for preventing throttle valve from reaching idling position when blocking structure engages lever. Motivating system operates to move blocking structure into engagement with lever when automobile engine decelerates from above predetermined speed so that throttle valve is held open. Motivating system includes driving device connected to operate blocking structure, speed detector for sensing speed of automobile engine, and speed setter associated with speed detector and driving device for causing driving devices to move blocking structure into engagement with lever when automobile engine decelerates from above predetermined speed.
19 citations
Patent•
30 Sep 1969TL;DR: A steering wheel assembly including an extensible steering shaft whose upper end is attached to a steering wheel and the lower end is connected to a gearbox, a tubular steering column also having telescopic portions arranged coaxially about the steering shaft and movable in the axial direction thereof with the shaft, and an energy-absorbing member capable of plastic deformation in one direction only, either under tension or compression, and being rigid in the opposite direction.
Abstract: A steering wheel assembly including an extensible steering shaft whose upper end is connected to a steering wheel and the lower end is connected to a gearbox, a tubular steering column also having telescopic portions arranged coaxially about the steering shaft and movable in the axial direction thereof with the shaft, and an energy-absorbing member capable of plastic deformation in one direction only, either under tension or compression, and being rigid in the opposite direction, said energy-absorbing member positioned beside the steering column and fixed at its lower end to a portion of the tubular steering column and fixed at the other end to a portion of the vehicle Preferably, said energy-absorbing member is mounted at an angle to the axis of the steering shaft so as to kinetically balance an angular collision force and thereby prevent bending of the shaft
17 citations
Patent•
05 Sep 1969TL;DR: In this paper, the authors present a control for automatic transmission of a vehicle wherein the computation of the slip ratio may be established by any one of, mechanical means, means utilizing fluid under pressure, or electrical means; there being associated in combination therewith, a computing circuit which is applied for the determination of the number of revolutions of the engine of the vehicle, and there being additionally applied in connection therewith a logic product circuit, logic sum circuit, a bistable memorial circuit and a synchronous time retaining circuit for effectuating the operation of electrically actuable distribution valve means
Abstract: The present invention relates to a control for automatic transmission of a vehicle wherein the computation of the slip ratio may be established by any one of, mechanical means, means utilizing fluid under pressure, or electrical means; there being associated in combination therewith, a computing circuit which is applied for the determination of the number of revolutions of the engine of the vehicle, the number of revolutions of the output shaft of the torque converter or the power driven shaft of the drive unit of the vehicle, and there being additionally applied in connection therewith a logic product circuit, a logic sum circuit, a bistable memorial circuit and a synchronous time retaining circuit for effectuating the operation of electrically actuable distribution valve means to control the transition from high- to low-gear functions and vice versa for the vehicle.
13 citations
Patent•
19 Aug 1969TL;DR: In this article, a fuel injection control apparatus for use with a multicylinder fuel injection-type engine, which gives each fuel injection nozzle-operating solenoid valve an exciting pulse of a duration to satisfy the engine requirement, is described.
Abstract: In a fuel injection control apparatus for use with a multicylinder fuel injection-type engine, which gives each fuel injection nozzle-operating solenoid valve an exciting pulse of a duration to satisfy the engine requirement, a fuel injection synchronizing system by which a pulse signal synchronous with the cycle of the engine is produced and the exciting pulse is distributed to each cylinder.
12 citations
Patent•
24 Jan 1969TL;DR: In this paper, a sealing member of thin plate interposed between the pressure-applying surface of a punch and the liquid metal was used to close the clearance between the punch and mold against entrance of said liquid metal, thereby preventing the formation of flash.
Abstract: Liquid metal forging process comprising pouring liquid metal into a mold, applying high pressure by a punch to said liquid metal through a sealing member of thin plate interposed between the pressure-applying surface of said punch and the liquid metal, wherein during pressing the rim of said sealing member because of high pressure and high temperature deforms and closely fits the mold to seal the clearance between the punch and mold against entrance of said liquid metal, thereby preventing the formation of flash.
Patent•
12 Aug 1969TL;DR: In this paper, an approach for detecting the injection timing of an internal combustion engine is presented, wherein the strain dislocation, or stress change of the injector spring, due to the lift of the needle valve of an injector when fuel is sprayed out of the injected injector to the ends of the cylinder, is converted to an electrical signal, said signal being used to trigger a stroboscopic lamp so as to flash synchronously with the lift in needle valve, the lamp being positioned to illuminate a crank angle scale rotating with the engine crankshaft and a fixed
Abstract: Apparatus for detecting the injection timing of an internal combustion engine, wherein the strain dislocation, or stress change of the injector spring, due to the lift of the needle valve of the injector when fuel is sprayed out of the injector to the ends of the cylinder, is converted to an electrical signal, said signal being used to trigger a stroboscopic lamp so as to flash synchronously with the lift of the needle valve of the injector, the stroboscopic lamp being positioned to illuminate a crank angle scale rotating with the engine crankshaft and a fixed index on the engine block, permitting observation of the crank angle, as if the engine were in static state.
Patent•
07 Jul 1969TL;DR: A CLUTCH DISC as discussed by the authors is a CIRCULAR ARRY of WAVE-SHAPED LEAF SPRINGS for use on MOTOR VEHICLES.
Abstract: A CLUTCH DISC, PARTICULARLY FOR USE ON MOTOR VEHICLES, COMPRISES A CIRCULAR ARRY OF WAVE-SHAPED LEAF SPRINGS FORMED AT THE PERIPHERAL PORTION OF THE SISC ARRANGED BETWEEN AND SECURED TO A PAIR OF OPPOSITELY DIRECTED FRICTION FACING. THE SPRINGS OF TWO DIFFERENT TYPES HAVING, RESPECTIVELY, DIFFERENT AXIAL DEPTHS ALTERNATE IN SUCCESSION AROUND THE DISC AND THEREBY IMPART A WAVE SHAPE TO THE FRICTION FACINGS WHEN THE CLUTCH DISC IS IN AN UNLOADED CONDITION WHEREBY A MULTISTAGE ENGAGEMENT OF THE CLUTCH IS MORE EASILY ACCOMPLISHED.
Patent•
14 May 1969TL;DR: In this paper, an emergency equipment to cope with the failure of headlamps while a motor vehicle is running consisting of headlights connected to a power source through a main switch and a dimmer switch, a logical circuit connected to circuits of the hkadlamps, and auxiliary lights connected to the power source via a relay.
Abstract: An emergency equipment to cope with the failure of headlamps while a motor vehicle is running comprising headlamps connected to a power source through a main switch and a dimmer switch, a logical circuit connected to circuits of the hkadlamps, and auxiliary lights connected to the power source through a relay. The emergency equipment is characterized in that when one or all of the headlamps fail while the main switch is closed, the logical circuit and hence the relay are operated, whereby the auxiliary lights are turned on.
Patent•
21 Oct 1969TL;DR: In this article, a vehicle having a conventional clutch pedal and brake pedal is provided with an antiskid brake system wherein a wheel rotation sensor provides a signal for the automatic release and reapplication of the brakes during a substantial wheel lock condition.
Abstract: A vehicle having a conventional clutch pedal and brake pedal is provided with an antiskid brake system wherein a wheel rotation sensor provides a signal for the automatic release and reapplication of the brakes during a substantial wheel lock condition. Upon the initial reception of the signal, the clutch will automatically be released and will be maintained in the release position during any subsequent automatic release and reapplication of the brakes during a continuous single operation of the brake pedal.
Patent•
14 Jul 1969
TL;DR: In this article, a pulse distribution system for generating an approximated profile on a workpiece by controlling the co-operational movements of the workpiece and a tool of a numerically controlled machine tool according to input data is presented.
Abstract: A pulse distributing system for generating an approximated profile on a workpiece by controlling the co-operational movements of the workpiece and a tool of a numerically controlled machine tool according to input data. Said system comprises computing means which may calculate one of each number-pair which represents a point used for pulse distribution and consists of pulse representation workpiece rotary angle and pulse representation distance between the axes of the workpiece and the tool when the other thereof is given. Another embodiment of the invention further comprises error checking means operable to maintain the error of approximation within allowable tolerance.
Patent•
17 Dec 1969TL;DR: In this paper, a pressure regulator regulates a control hydraulic pressure supplied to the servo-operated speed change gear, and further includes a pressure modulator valve connected to the pressure regulator to assure smooth torque transmission for a large torque demand during low speed operation of the vehicle.
Abstract: A hydraulic control system for an automatic transmission, having a torque converter or a hydraulic coupler and a servo-operated speed change gear, for use in vehicles, includes a pressure regulator regulating a control hydraulic pressure supplied to the servo-operated speed change gear, and further includes a pressure modulator valve connected to the pressure regulator to assure smooth torque transmission for a large torque demand during low speed operation of the vehicle. A compensating pressure provided by the pressure modulator valve is applied to the pressure regulator valve to assure a control pressure, proportional to the throttle pressure opening or the torque demand, being applied to the servo-operated speed change gear. The pressure modulator valve restricts the control pressure to a value below the maximum constant pressure for a throttle valve opening exceeding a certain value, preventing excessive increase in the control pressure and assuring a constant low control pressure when the vehicle speed increases to a predetermined speed or when the transmission is set for the usual driving range.
Patent•
22 Jul 1969TL;DR: In this article, an oil pressure control device for an automatic transmission of vehicles is presented, where the oil pressure proportional to the opening of the throttle is applied through the aid of springs to the pressure control valve for controlling the pressure acting on the servosystems.
Abstract: The present invention provides an oil pressure control device for an automatic transmission of vehicles, in which an oil pressure proportional to the opening of the throttle is applied through the aid of springs to the pressure control valve for controlling the pressure acting on the servosystems. The oil pressure is increased to a prescribed level in proportion to the throttle opening, but once at that level, the oil pressure is maintained constant regardless of any additional increment of the throttle opening, so as to improve the operation and efficiency of the transmission without changing the throttle pressure Pth.
Patent•
29 Jul 1969TL;DR: In this paper, a method for producing a permeable product of the BETA-ALUMINA type capable of passing SODIUM and/or POTASSIUM IONS and primearily useful as the SEPARATOR in a BATTERY CELL is presented.
Abstract: A METHOD FOR PRODUCING A PERMEABLE PRODUCT OF THE BETA-ALUMINA TYPE CAPABLE OF PASSING SODIUM AND/OR POTASSIUM IONS AND PRIMARILY USEFUL AS THE SEPARATOR IN A BATTERY CELL, COMPRISING THE STEPS OF FROMING AN ALPHAALUMINA SINTERED MEMBER INTO A DESIRED SHAPE, PLACING SAID SINTERED MEMBER IN AN ALKALI METAL ATMOSPHERE, E.G., SODIUM POTASSIUM, OR OXIDES THEREOF AT AN ELEVATED TEMPERATURE, AND DIFFUSING THE ALKALI METAL OR ITS OXIDE INTO SAID ALPH-ALUMINA MEMBER, WHEREBY TO FORM AN ION PERMEABLE SEPARATOR HAVING A DENSE STRUCTURE AND SUFFICIENT STRENGTH FOR ITS INTENDED USE.
01 Feb 1969
Patent•
25 Feb 1969TL;DR: In this article, an improved process of continuous transverse rolling utilizing a pair of identical rolls, each having on its surface a V-shaped forming projection and a line-shaped feeding projection disposed helically and parallel to one another, is presented.
Abstract: An improved process of and apparatus for continuous transverse rolling utilizing a pair of identical rolls, each having on its surface a V-shaped forming projection and a line-shaped feeding projection disposed helically and parallel to one another so that the basic lead angle of said V-sahped forming projection is equal to the lead angle of said feeding projection, said pair of rolls being driven by shafts held in parallel planes, but the shafts being tilted in said planes so that projections of their center lines onto a plane perpendicular to the shortest line between said shafts will intersect at a point falling on the feed line for stock to be inserted between the rolls, each projected center line of said shafts making the same angle with said feed line, and said angle being equal to the lead angle of said feeding projection and the basic lead angle of said forming projection.
Patent•
13 Nov 1969TL;DR: In this paper, a surface layer of boron impregnated ferrous materials is provided on the contacting surfaces of the containers and other conveying members used in the casting of the molten aluminum and its alloys.
Abstract: To prevent the corrosion of the surfaces contacting molten aluminum and aluminum alloy when such molten materials are being cast, a surface layer of boron impregnated ferrous materials is provided on the contacting surfaces of the containers and other conveying members used in the casting of the molten aluminum and its alloys
Patent•
08 Dec 1969TL;DR: In this article, a window regulator consisting of window raising and window-lowering circuits for raising and lowering window glass is described, and a safety circuit cancel switch enables raising of window glass regardless of load on motor.
Abstract: Powered window regulator comprises motor assembly having window raising and window-lowering circuits for raising and lowering window glass. Start switch for motor has contact for connecting window-raising circuit with motor and second contact for connecting window-lowering circuit with motor. Overload detection switch associated with motor closes when load on motor exceeds predetermined normal value. Motor field control relay is activated when overload detection switch is closed to thereby break window-raising circuit and close window-lowering circuit. Delay relay circuit maintains motor field control relay activated predetermined time after overload detection switch opens whereby window glass continues to lower. Safety circuit cancel switch enables raising of window glass regardless of load on motor.
Patent•
21 Jan 1969TL;DR: In this article, the authors measure the air-fluency ratio of COMBUSTIBLE MIXTURE by analyzing an Exhaust Gas Sample from an engine equipped with Mixture.
Abstract: METHOD FOR MEASURING AIR-FUEL RATIO OF COMBUSTIBLE MIXTURE BY ANALYZING EXHAUST GAS FROM ENGINE SUPPLIED WITH MIXTURE COMPRISES STEPS OF COMPARING THERMAL CONDUCTIVITY OF STANDARD GAS WITH THERMAL CONDUCTIVITY OF GAS SAMLE AND THEREAFTER OBTAINING FROM COMPARISON A FIRST VOLTAGE VALUE REPRESENTATIVE OF THE H2 AND CO2 CONTENT OF THE EXHAUST GAS. THERMAL CONDUCTIVITY OF EXHAUST GAS SAMPLE IS THEN COMPARED WITH EXHAUST GAS SAMPLE HAVING NO CO2 CONTENT AND FROM COMPARISON SECOND VOLTAGE VALUE REPRESENTATIVE OF CO2 CONTENT OF EXHAUST GAS SAMPLE IS OBTAINED. SECOND VOLTAGE VALUE IS SUBTRACTED FROM FIRST VOLTAGE VALUE TO THEREBY OBTAIN THIRD VOLTAGE VALUE REPRESENTATIVE OF AIR-FUEL RATIO OF COMBUSTILE MIXTURE. RATIO OF SECOND VOTAGE VALUE TO FIRST VOLTAGE VALUE IS CON- STANT SOMEWHERE BETWEEN LESS THAN TEN AND MORE THAN ONE.
01 Feb 1969
Patent•
13 Oct 1969TL;DR: In this paper, the hydraulic braking circuit between the master cylinder and the wheel cylinder is provided with a valve for interrupting fluid communication there between and a movable member for selectively increasing and decreasing the effective volume of a portion of the hydraulic circuit.
Abstract: The hydraulic braking circuit between the master cylinder and the wheel cylinder is provided with a valve for interrupting fluid communication therebetween and a movable member for selectively increasing and decreasing the effective volume of a portion of the hydraulic circuit. A sensor is provided for sensing the rotation of at least one of the wheels of the vehicle and delivering an instruction signal when the wheel is subjected to an excess braking beyond a predetermined deceleration of the wheel. The signal from the sensor operates a change-over valve which increases the effective volume of the portion of the hydraulic circuit by actuating the movable member. A detector is provided for detecting maximum deceleration of the wheel during braking and the maximum value of the detected wheel deceleration is preserved in a memory. The detected maximum wheel deceleration and the rate of change of the effective volume of the hydraulic circuit are converted into effective electric signals. An orifice valve controls the rate of effective volume reduction in the hydraulic circuit in response to a comparison of the electric signals.