Patents Assigned to Toyo Kogyo Co., Ltd.
  • Patent number: 4657102
    Abstract: In a four-wheeled vehicle, the rear wheels are turned as well as the front wheels in response to operation of the steering wheel. The rear wheel turning angle characteristics relative to the front wheel turning angle is changed according to the vehicle speed. In the low to high vehicle speed region, the rear wheel turning angle is increased with increase of the front wheel turning angle and the increasing rate is increased as the vehicle speed increases. In the very low vehicle speed region, the rear wheels are not turned until the front wheels are turned at least by a predetermined angle, and are turned in the direction opposite to the front wheels when the front wheels are turned by an angle larger than the predetermined angle. The rear wheel turning angle in the opposite direction is changed in proportion to the front wheel turning angle.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: April 14, 1987
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Hirotaka Kanazawa, Teruhiko Takatani, Naoto Takata
  • Patent number: 4603552
    Abstract: In a turbocharged engine, a pressure sensor is disposed downstream of the blower of the turbocharger and protective devices such as an alarm lamp for requiring the operator to lower the supercharging pressure and means for interrupting fuel feed to the engine are actuated under the control of a control circuit, when the supercharging pressure detected by the pressure sensor exceeds a preset maximum supercharging pressure. The control circuit does not permit the protective devices to operate unless the detected supercharging pressure continues higher than the preset maximum supercharging pressure for a predetermined time interval.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: August 5, 1986
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Yoshinobu Kido
  • Patent number: 4564608
    Abstract: A method of producing monolith catalysts for catalysts to be used in a measure to purify the exhaust gases of a vehicle, in which, in a process of producing alumina slurry liquid, the dispersibility of the alumina particles in the slurry liquid is improved by the use of water, aluminium-nitrate powder instead of acid, alkali to allow the slurry liquid to be uniformly adhered on the surface of the dipped carrier, thereby to prevent the alumina coat layer from coming off in the high temperature.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: January 14, 1986
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Kazunori Ihara
  • Patent number: 4513707
    Abstract: A rotary piston engine including a casing comprised of a rotor housing and a pair of side housings attached to the opposite sides of the rotor housing to define a rotor cavity. A substantially triangular rotor is disposed in the rotor cavity. The intake system includes a light load intake port formed in one of the side housings so as to open to the rotor cavity, a medium load and heavy load intake ports formed in the other side housing. The light load and medium load intake ports are formed so that they are opened to a working chamber before the chamber is disconnected from the exhaust port. The heavy load intake port is associated with a control valve which is closed under light and medium load operations. The medium load intake port has an effective area smaller than that of the light load intake port and is closed earlier than the light load intake port.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: April 30, 1985
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Tomoo Tadokoro, Haruo Okimoto, Ikuo Matsuda
  • Patent number: 4513696
    Abstract: An apparatus for charging a cooling liquid to an engine cooling system. The apparatus comprises an additive reservoir for storing an additive such as an anti-icing agent, a cooling water reservoir for storing cooling water, a filler head adapted to be connected with a coolant inlet of an automobile engine cooling system, additive conduits extending between the additive reservoir and the fillter head, cooling water conduits extending between the cooling water reservoir. Additive control valves are provided in the additive conduits for controlling the quantity of the additive supplied to the engine cooling system in accordance with the capacity of the cooling system and a desired concentration of the additive.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: April 30, 1985
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Hiroshi Fujii, Toshiharu Sakamoto
  • Patent number: 4511129
    Abstract: A quarter-window for a vehicle is hinged to the center pillar of the vehicle by way of a hinge. The center pillar is provided with a holder having a hinge receiving opening and welded to the center pillar. The hinge is inserted into the hinge receiving opening of the holder by moving the window-hinge assembly forwardly with respect to the vehicle body and the hinge is fixed to the center pillar by a bolt from outside the vehicle body at the portion projecting forwardly from the hinge receiving opening. Rearward movement of the window-hinge assembly is limited so that the hinge cannot be withdrawn from the holder even if the bolt is removed from the center pillar.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: April 16, 1985
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Kohji Kishino
  • Patent number: 4491844
    Abstract: An automobile antenna device comprising a first antenna section provided on a windshield glass for receiving a first wave band, a power supply terminal connected with one end of the first antenna section, a grounding terminal connected with the other end of the first antenna section and having a grounding portion which is adapted to be connected with ground, an electric power source adapted to be connected with the power supply terminal lead so that defogging current be supplied to the first antenna section, a second antenna section provided on the windshield glass for receiving a second wave band, a connecting section having one end connected with the second antenna section and the other end connected with the grounding terminal lead at least in the vicinity of the grounding portion.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: January 1, 1985
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Masahiro Tsuchie, Tomihiko Takeoka, Takanobu Nomura
  • Patent number: 4488625
    Abstract: A clutch control system for automobiles comprising a clutch actuating member for actuating a clutch positioned between an engine output shaft and a transmission input shaft, and a suction pressure operated actuator for moving a clutch actuating member to a clutch releasing position. A detecting circuit is provided for detecting a negative differential coefficient of the engine speed and generating a corresponding output. A vacuum control valve is provided in a line to the clutch actuator to operate the clutch release. The line is also provided with a holding valve which is closed when the detecting circuit detects the negative differential coefficient of the engine speed to thereby stop the clutch engaging movement of the actuator momentarily so as to prevent the engine speed from falling off.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: December 18, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Kazutoshi Nobumoto, Shizuo Sumida
  • Patent number: 4485625
    Abstract: An internal combustion engine has an air-fuel ratio control system, an exhaust gas recirculation system and an ignition system. At least one of the systems is adjusted when the intake air temperature is very high so that fast combustion is suppressed. The adjustment is effective to prevent detonation or similar unusual combustion which may occur under a very high temperature of the intake air.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: December 4, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Misao Fujimoto, Shoso Ishii, Yoshikuni Yada, Shigeki Imazu
  • Patent number: 4484556
    Abstract: An internal combustion engine including a combustion chamber of which volume is cyclically changed in response to a rotation of the engine to effect a plurality of operating strokes including an intake stroke, an intake system including a main intake passage and an auxiliary intake passage both leading to the combustion chamber, a supercharger for providing a supply of supercharging gas to the auxiliary intake passage, a timing valve provided in the auxiliary intake passage between the combustion chamber and the supercharger, means for the timing valve being driven by the engine crankshaft for cyclically opening the auxiliary intake passage in synchronim with the rotation of the engine to allow the supercharging gas to pass to the combustion chamber, an electrically operated timing adjusting member for adjusting the opening timing of the valve, a timing control electrical circuit for controlling the adjusting member to determining the opening timing of the timing valve in accordance with a plurality of engine
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: November 27, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Haruo Okimoto, Ikuo Matsuda
  • Patent number: 4482399
    Abstract: A nitrided cast iron product comprising cast iron matrix material and graphite particles distributed in the matrix material, a nitrided layer formed in a surface of the cast iron product and having gaps between the graphite particles and the matrix material, the gaps being exposed to the surface of the product and filled with resin which has a resistance to dissolution under a temperature below 250.degree. C.
    Type: Grant
    Filed: August 24, 1983
    Date of Patent: November 13, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Tuyoshi Morishita, Toshihiko Hattori, Yashuhumi Kawado, Kouji Tarumoto
  • Patent number: 4480868
    Abstract: A motor truck body structure including a cabin and a load carrying rear body. The cabin includes a cabin body having a rear end opening provided with an upper rear panel and a lower rear panel. The upper rear panel is swingable from an upright position upwardly and rearwardly to an open position. The lower rear panel is also swingable from an upright position downwardly and rearwardly to an open position. The rear body includes a load carrying floor panel having an opening at the front portion where a movable floor panel segment is mounted for rearward and upward swinging movement. The lower rear panel is provided with a seat cushion and the floor panel segment with a seat back cushion so that an auxiliary seat can be formed when the panels are opened.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: November 6, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Masaaki Koto
  • Patent number: 4478430
    Abstract: A vehicle suspension mechanism including a carrier for carrying a rear wheel rotatably about an axis of rotation, a strut assembly having an upper end connected with a vehicle body and a lower end connected with the carrier, a swingable arm pivotably connected through resilient rubber bushes with the vehicle body at a longitudinally spaced first forward point and a first rearward point and with the carrier at a longitudinally spaced second forward point and a second rearward point, the first rearward point being at a higher level than a plane defined by the remaining three points so that a toe-in movement is produced when the arm is upwardly swung.
    Type: Grant
    Filed: October 26, 1982
    Date of Patent: October 23, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Jiro Maebayashi, Shoji Kasai
  • Patent number: 4475763
    Abstract: The disclosure is directed to an improved rear seat arrangement for use in a motor vehicle and the like in which a seat cushion and a corresponding seat back are simultaneously divided laterally into two portions, respectively capable of being altered in their positions independently of each other so as to meet such a demand as for further carrying persons in addition to loading of long length items, etc. on the motor vehicle.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: October 9, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Teruo Hamatani, Kiyomi Okino
  • Patent number: 4474008
    Abstract: An exhaust gas recirculation (EGR) system for a diesel engine comprising an EGR control valve for regulating the flow of exhaust gases to be recirculated from an engine exhaust system back to an engine air intake system. When the exhaust gas recirculation is to be interrupted, the EGR control valve is closed a predetermined time after the opening of a throttle valve used in the air intake system for regulating the flow of air towards the engine. For this purpose, delay valves are utilized in association with the throttle valve and the EGR control valve.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: October 2, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Shigeru Sakurai, Shigeki Hamada
  • Patent number: 4474153
    Abstract: Feedback control is carried out to maintain the rotational speed of an internal combustion engine during idling at a desirable speed determined according to the operating conditions of the engine by controlling an adjusting valve for controlling the amount of air to be fed to the engine. The actual rotational speed of the engine and the actual opening angle of the throttle valve are detected and when the actual rotational speed is lower than a predetermined value and at the same time the actual opening angle of the throttle valve is smaller than a predetermined value, the feedback control is carried out. Further, whether or not the driving power of the engine is operatively transmitted to the driving wheels is detected, and the predetermined value for the rotational speed of the engine is set at a higher value when the driving power is not transmitted to the driving wheels than when the driving power is transmitted to the driving wheels.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: October 2, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Masato Hanamoto, Koso Iida, Akio Inoue, Yukinari Imoto
  • Patent number: 4471745
    Abstract: An internal combustion engine is provided with an exhaust gas recirculating passage for communicating the intake passage and the exhaust passage thereof. The recirculating passage is provided with a valve for controlling the amount of recirculated exhaust gas. A fundamental air-fuel ratio control value for regulating the air-fuel ratio of the intake gas to a predetermined value is corrected by an operating condition correction value according to the operating condition of the engine. The operating condition correction value is successively changed to an optimal value by comparing the actually obtained air-fuel ratio with a predetermined value. The operating condition correction value for correcting the fundamental air-fuel ratio control value when the exhaust gas recirculation is carried out is changed independently from the same for correcting the fundamental air-fuel ratio correction value when the exhaust gas recirculation is not carried out.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: September 18, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Sadashichi Yoshioka, Tatsuro Oda, Yoshitaka Nomoto, Katsuhiko Yokooku
  • Patent number: 4471992
    Abstract: An automobile body structure has a side sill formed of inner and outer panels, a central pillar joined to the side sill to extend upwardly therefrom, a rear fender panel extending upwardly from the outer panel of the side sill to form the edge of a door opening and rearwardly of this edge to form a body panel, and a reinforcement extending rearwardly together with the inner panel of the side sill to form a closed cross-section therebetween and joined at its rear end to the rear wheelhouse. The structure greatly improves the body strength rearward of the center pillar.
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: September 18, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Osamu Matsuura, Nobuhiro Komatsu
  • Patent number: 4470394
    Abstract: A supercharged internal combustion engine comprising a combustion chamber of which volume cyclically changes in response to a rotation of the engine to conduct engine operating strokes including an intake and compression strokes, an intake system for supplying intake gas to the combustion chamber.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: September 11, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Tomoo Tadokoro, Ikuo Matsuda, Haruo Okimoto
  • Patent number: 4470619
    Abstract: An automobile seat belt anchor attachment structure for attaching a seat belt anchor to a pillar structure, the attachment structure including inner and outer pillar panels which are welded together to form a closed cross-section. The attachment structure further including a stiffening panel secured to the pillar structure and a nut carrying plate secured to the stiffening panel with an anchor attaching nut provided thereon. The nut plate has high strength against forces both perpendicular and parallel to the base of the nut plate. An impact load applied to the anchor attachment, is prevented from deforming the nut plate.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: September 11, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Hideyuki Imajyo, Takashi Mishima