Patents Assigned to Toyota Jidosha Kogyo Kabushiki Kaisha
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Patent number: 4831892Abstract: In an automatic transmission including a torque converter, an overdrive gear mechanism, an underdrive gear mechanism, a planetary gear mechanism, a first input shaft for the overdrive mechanism connected with the torque converter, and a second input shaft for the underdrive mechanism, a support structure is provided which is formed with a radially outwardly extending wall axially located adjacent a spline which connects a ring gear of the planetary gear mechanism with the second input shaft, with the support structure also including an axially extending boss located at the radially inner end of the radially extending wall, the boss having the second input shaft rotatably supported therein with the piston of the servo mechanism for operating an overdrive brake of the overdrive mechanism being attached to the radially extending wall.Type: GrantFiled: February 26, 1987Date of Patent: May 23, 1989Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yoshio Shindo, Hiroshi Ito
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Patent number: 4817472Abstract: In an automatic transmission control system incorporating the conventional line, throttle, and governor fluid pressure regulation valves, mannual selector valve, and shift valves such as 1/2, 2/3, and 3/4 shift valves, there is further incorporated a modulator fluid pressure control valve which produces a modulator fluid pressure of a predetermined constant level from the line pressure available from a port of the manual selector valve when it is shifted to a lower range, such as, for example, 2 range. The line fluid pressure regulation valve, which is normally boosted by the throttle pressure, is instead boosted by the modulator fluid pressure when the modulator fluid pressure is present while the throttle fluid pressure is very low as at the time when the manual selector valve has been shifted from the D range to the 2 range for effecting rapid deceleration of the vehicle, so as to support the governor pressure, generated from the line pressure, at a high level while the vehicle speed is still high.Type: GrantFiled: June 28, 1983Date of Patent: April 4, 1989Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Seitoku Kubo, Koujiro Kuramochi, Tatsuo Kyushima
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Patent number: 4811226Abstract: An automatic angle adjusting apparatus for adjusting vehicle equipments to be adjusted to optimum angular positions to a driver such as a fender mirror, an inner mirror, blowing ports of an air conditioner, a speaker and a meter is disclosed. Amounts of adjustment of vehicle seat parts are detected by amounts of adjustment detectors and the optimum angles of the vehicle equipments, a height of the driver or an eye position of the driver are calculated based on the detection signals to automatically adjust the vehicle equipments to the optimum angular position. When the height or the eye position of the driver is calculated, the optimum angles are further calculated based on the calculated height or eye position.Type: GrantFiled: December 23, 1987Date of Patent: March 7, 1989Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Toshio Shinohara
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Torque converter lock up clutch rotary shock absorber with inner plate element location construction
Patent number: 4768633Abstract: A rotary power transmission device including a hydraulic torque converter which transmits rotary power between coaxial power input and power output shafts, and a lock up clutch system which also transmits rotary power between the power input and power output shafts, wherein the lock up clutch system includes a rotary shock absorber including a disk shaped plate element and two ring shaped plate elements cooperating with an outer peripheral portion of the disk shaped plate element in an axially superposed manner so as to provide a rotary shock absorber, one of the two ring shaped plate elements being positioned between the other ring shaped plate element and the disk shaped plate element, the assembly of the two ring shaped plate elements and the outer peripheral portion of the disk shaped plate element being positioned in an annular space formed adjacent an outer peripheral portion of the turbine of the hydraulic torque converter, while the radially inner portion of the disk shaped plate element is rotationalType: GrantFiled: July 10, 1981Date of Patent: September 6, 1988Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Seitoku Kubo, Koujiro Kuramochi, Tatsuo Kyushima -
Patent number: 4762026Abstract: While running of an engine used to be unstable in warming-up, the output of the engine is large and the running of the engine is maintained stably in high vehicle speed even if the engine is in the warming-up. According to the present invention, an automatic transmission is allowed to be run in the high speed stage in the high vehicle speed even during the warming-up.Type: GrantFiled: December 2, 1986Date of Patent: August 9, 1988Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yukio Kinugasa, Takehisa Yaegashi
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Patent number: 4683771Abstract: A gear-teeth protector for a change-speed gearing unit in which a pair of upper and lower change-speed gears of high meshing rate are arranged adjacent to an upright wall in a housing for the gearing unit. The gear-teeth protector comprises a U-shaped shroud member secured at its outer peripheral flanges to one face of the upright wall so as to prevent metallic alien particles being trapped between the change-speed gears, the shroud member forming a pair of side walls enclosing the teeth on the upper change-speed gear and extending adjacent to the upper teeth on the lower change-speed gear to enclose the meshing engagement portion between the two change-speed gears.Type: GrantFiled: March 31, 1981Date of Patent: August 4, 1987Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yoshitaka Sogo, Masami Fukushima, Tetsuro Kuzuya
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Patent number: 4676123Abstract: An improved transverse-mount type driving device for an automobile, having an output gear provided between last and intermediate planetary gear units of an auxiliary speed change gear assembly, the output gear meshing with a driven gear on a transmission shaft which extends parallel with the auxiliary speed change gear assembly and mounts a drive gear at an end proximate of the torque converter for meshing engagement with a differential drive gear which in turn transmits power to right and left axle shafts. A parking gear is provided on the transmission shaft for selective engagement to prevent rotation of the transmission shaft when the automobile is in park.Type: GrantFiled: February 28, 1986Date of Patent: June 30, 1987Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Seitoku Kubo, Koujiro Kuramochi, Tatsuo Kyushima
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Patent number: 4662672Abstract: A locking device for a detachable panel fitted in a roof opening of automobiles comprises a pivotable lever mounted to the panel, a stationary body fixed to the vehicle roof, and a link mechanism securely fixed to the lever while pivoted to the stationary body. The link mechanism includes a pair of links each provided with a recess while the stationary body includes a pair of arms each provided with a pin resiliently urged to fit in the recess to lock the position of the panel at the partially open state. The recess includes two lateral edges one of which extends higher than the other other to act as the stopper of the pin, to thereby limit excessive rotational movement of the panel with respect to the stationary body.Type: GrantFiled: January 23, 1981Date of Patent: May 5, 1987Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki KaishaInventors: Junji Yamamoto, Noboru Kanou, Masayuki Usami
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Patent number: 4652049Abstract: A device for adjusting the height of a cushion pad in the front part of the seat cushion of a seat, for example, for a vehicle, which has a hard plate disposed laterally of the seat cushion under the cushion pad, and a rotating mechanism connected to a shaft disposed under the cushion pad for rockably moving the front edge of the hard plate elevationally up and down between a position in the vicinity of the seat cushion frame and an upper position remote from the seat cushion frame. With this connection, the device can simultaneously adjust the height and the hardness of the cushion pad in response to the occupant's individual favorite value.Type: GrantFiled: May 27, 1986Date of Patent: March 24, 1987Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aishin Seiki Kabushiki KaishaInventors: Katsuaki Maruyama, Yaichi Oishi, Takami Terada, Motoi Hyodo
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Patent number: 4630209Abstract: Data for a map of a predetermined area is divided into a plurality of blocks, stored in an external memory medium such as a cassette tape, and loaded into a CPU when deemed necessary. The map as a whole or parts of the map can be arbitrarily selected and displayed through the operation of a keyboard, and vocal sight-seeing guidances corresponding to the displayed maps are simultaneously produced. Control of this multiple map system is effected by an electronic device having a microprocessor, and selected maps and necessary words are shown in displayed pictures by a display means, such as a cathode ray tube or the like.Type: GrantFiled: June 14, 1982Date of Patent: December 16, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Takao Saito, Masakazu Moriyama
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Patent number: 4606425Abstract: A vehicle speed control apparatus for automatically maintaining the vehicle speed of an automobile at a desired speed without the operation of the accelerator pedal, which apparatus includes an increase switch and a speed-increase means for continuously increasing the opening degree of the throttle valve when the increase switch is operated. When the increase switch is operated, the desired speed changes in response to the increasing actual speed of the automobile. The desired speed is finally determined to be the value of the actual vehicle speed just before the increase switch returns to the non-operating condition.Type: GrantFiled: April 30, 1984Date of Patent: August 19, 1986Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Fujitsu Ten LimitedInventors: Kazuhiko Hayashi, Jiro Masuda
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Patent number: 4606238Abstract: In a change-speed gearing unit, a manual shift lever is mounted at its lower end on a retainer casing which is secured at its outer peripheral portion to the upper seating face of an extension housing for the unit by means of fastening bolts threaded into the housing with intervention of an oil buffer member of elastic material between the outer peripheral portion of the casing and the upper seating face of the housing. A first plurality of fastening bolts adjacent to the lower end of the shift lever are directly engaged with the outer peripheral portion of the retainer casing to prevent floating of the casing, and a second plurality of fastening bolts are engaged respectively through a plurality of elastic members with the outer peripheral portion of the casing such that the casing is floatably secured in place due to resiliency of the oil buffer member.Type: GrantFiled: July 29, 1981Date of Patent: August 19, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Kazuhito Ikemoto, Nobuaki Katayama, Yukio Terakura, Kan Sasaki
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Patent number: 4604913Abstract: A parking brake releasing mechanism for used in a vehicle which has solved an apparently illogical problem, that is, minimizing the operating power of the brake releasing rod (or lever in some case) without increasing the stroke thereof, by ingeniously combining a first lever secured to a pawl for restraining the quadrant or toothed portion and a second lever operated by a brake releasing rod, in their constructing way such that the lever ratio is maintained large while the pawl is in engagement with the quadrant and is lowered after the engagement has been released.Type: GrantFiled: November 4, 1983Date of Patent: August 12, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Masaru Kyonomine
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Patent number: 4598729Abstract: A negative pressure control valve for generating a negative pressure has an inlet port communicating with a negative pressure source, an outlet port communicating with a negative pressure load, a diaphragm chamber with one surface defined by a diaphragm, and an atmospheric pressure chamber adjacent to the diaphragm chamber through the diaphragm and communicating with atmospheric pressure. The diaphragm holds a valve holding member. A solenoid operated mechanism which moves the valve holding member to a first or second position in accordance with an exciting current is disposed in the atmospheric pressure chamber. The valve holding member has a valve mechanism which communicates the diaphragm chamber with the atmospheric pressure chamber at the first position and seals a channel between those chambers at the second position. The solenoid operated mechanism selectively communicates the diaphragm chamber with the atmospheric pressure chamber.Type: GrantFiled: June 15, 1982Date of Patent: July 8, 1986Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Mitikatu Naito, Kiyotosi Yano, Kazuo Itou, Kunihiro Tsuzuki, Masaaki Tanaka, Michio Kawagoe
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Patent number: 4594912Abstract: In a banjo type axle casing comprising an enlarged center case portion for housing a differential gear and a pair of sleeve-like case portions outwardly extending from opposite ends of said center case portion for housing an axle shaft, an oil deflector for covering the axle shaft is provided, wherein said oil deflector is formed of a thin sheet wound into a cylindrical form, only one end of said oil deflector is restrained, the other unrestrained end of said oil deflector is inserted into and engaged with the inner peripheral surface of said sleeve-like case portions as an outer end which is freely deformable along the inner peripheral surface of said sleeve-like case portions, and the restrained end is spaced apart at a predetermined interval from the differential gear as an inner end.Type: GrantFiled: July 8, 1980Date of Patent: June 17, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Masakazu Ishikawa
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Patent number: 4572029Abstract: A speed change method and apparatus for the transmission of a vehicle provides for a speed change stage to produce a reduction gear ratio lower than a predetermined value when the engine temperature is low and vehicle speed is high, otherwise the speed change stage is prohibited from operating.Type: GrantFiled: January 8, 1982Date of Patent: February 25, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yukio Kinugasa, Takehisa Yaegashi
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Patent number: 4571683Abstract: This system computes final fuel injection amount TAU on the basis of the following formula;TAU=A.times.TP+B+JwhereA : a first learning termB : a second learning termTP : basic fuel injection amountJ : correction amountLearning control is effected by correcting the second learning term B during idling periods and by correcting the first learning term A when an engine has larger than a predetermined load.Type: GrantFiled: July 29, 1982Date of Patent: February 18, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Nobuyuki Kobayashi, Toshiaki Isobe, Nobuhisa Ohkawa, Takahide Kuma
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Patent number: 4569246Abstract: The shift lever of a transmission is comprised of a first shift lever having a cylindrical portion for mounting a grip, and a rod-like second shift lever inserted into the cylindrical portion of the first shift lever. In the space defined between the cylindrical portion of the first shift lever and the second shift lever, there are packed a plurality of soft rubber rings and at least one hard rubber rings. The soft rubber rings serve to diminish the propagation of the vibration through the second shift lever to the first shift lever. The hard rubber ring is bonded onto one of the peripheral surfaces of the first and the second shift lever in radially spaced apart relation to the other of the peripheral surfaces of the first and the second shift lever and serves to prevent an excessive bending of the first shift lever relative to the second shift lever during the operation of the shift lever.Type: GrantFiled: August 6, 1984Date of Patent: February 11, 1986Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Nobuaki Katayama, Kazuhito Ikemoto, Yoshio Ohta
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Patent number: 4569027Abstract: A method of detecting the rotational speed of a rotary member, which comprises the steps of detecting, in sequence, a time period indicative of the interval between successive preceding and following angular positions of the rotary member, memorizing in turn from each of the angular positions of the rotary member a series of the time periods detected during one rotation of the rotary member, substituting the foremost time period memorized during one rotation of the rotary member for the foremost time period memorized during the preceding one rotation of the rotary member, and calculating the sum of the substituted time period and the remaining time periods memorized during the preceding one rotation of the rotary member upon detection of each of the angular positions to detect the actual rotational speed of the rotary member.Type: GrantFiled: September 21, 1981Date of Patent: February 4, 1986Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Nippondenso Co., Ltd.Inventors: Jiro Nakano, Munetaka Noda
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Patent number: 4565106Abstract: A gear transmission mechanism for an automotive vehicle, with a power input shaft, including several combination assemblies, each including a layshaft and a selectively engagable friction engaging mechanism which can either be engaged to rotationally drive the layshaft from the power input shaft or can be disengaged to rotationally disengage the layshaft from the power input shaft. All the layshafts are substantially parallel with one another and with a mainshaft. Each of several pairs of gear wheels consists of a mainshaft gear mounted on the mainshaft and a layshaft gear mounted on one of the layshafts. Of each of these pairs, one is a fixed gear which is fixed to its shaft on which it is mounted, and the other is an idler gear which, according to the selective operation of a gear engaging system, either can be rotationally coupled to its shaft on which it is mounted, or can be left rotationally disengaged from that shaft.Type: GrantFiled: August 20, 1982Date of Patent: January 21, 1986Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisin-Warner LimitedInventor: Masaharu Sumiyoshi