Patents Assigned to Aisin Seiki
-
Patent number: 5547254Abstract: A seat reclining apparatus includes a release lever provided on one side of a pair of lower arms, a lever corresponding to the release lever provided on the other side of the pair of lower arms, a connecting bar consisting of a torsion rod connecting the two levers, and a pawl cooperating with each lever. A cam member is combined with each pawl by being placed in a cam slot of the pawl, the combination is provided on both lower arms and the cam members are connected by the connecting rod. The release lever is connected solely to one of the cam members.Type: GrantFiled: September 28, 1993Date of Patent: August 20, 1996Assignee: Aisin Seiki Kabushiki KaishaInventor: Naoaki Hoshihara
-
Patent number: 5547264Abstract: The invention is directed to an arrangement for controlling a braking force applied to a rear wheel in a certain relationship with a braking force applied to a front wheel, so as to provide an ideal braking force distribution. Pressure control valves are disposed in a hydraulic circuit which communicates a master cylinder with at least a rear wheel cylinder. There are provided an auxiliary power source for discharging a power pressure and a hydraulic booster for regulating the power pressure and actuating the master cylinder. A changeover valve is disposed between the master cylinder and the control valves, and selectively placed in one of a first operating position for communicating the control valves with the master cylinder and blocking the communication between the control valves and the hydraulic booster, and a second operating position for communicating the control valves with the hydraulic booster and blocking the communication between the control valves and the master cylinder.Type: GrantFiled: November 2, 1993Date of Patent: August 20, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Kenji Tozu, Kenji Asano, Noriaki Hattori
-
Patent number: 5544485Abstract: A master cylinder includes a cylinder body including a cylinder portion, a piston fit into the cylinder portion so as to fluid-tightly divide the cylinder portion into a pressure chamber and a supply chamber, a connecting passage which is disposed in the piston and which connects the pressure chamber with the supply chamber, a valve mechanism which is mounted on the piston and which disconnects the connecting passage when the piston is moved for a predetermined distance and a restriction member installed in the connecting passage for restricting a flow of a fluid from the pressure chamber into the supply chamber when the piston is operated and allowing the flow of the fluid from the supply chamber into the pressure chamber when the piston is returned.Type: GrantFiled: March 17, 1995Date of Patent: August 13, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Toshihiro Nakano, Hideaki Iijima, Haruo Arakawa
-
Patent number: 5544947Abstract: A hydraulic brake device for a vehicle includes a reservoir for storing brake fluid, a master cylinder for generating brake pressure corresponding to an operation force of a brake operation member of the vehicle which is connected to the reservoir, a regulator valve for generating brake pressure corresponding to an operation force of a brake operation member of the vehicle which is connected to the reservoir, a wheel brake, and a pressure control unit which connects the wheel brake to the master cylinder and connects the wheel brake to the regulator valve to control a flow into the reservoir from the wheel brake and a flow into the wheel brake from the regulator valve under an anti-lock condition.Type: GrantFiled: April 20, 1995Date of Patent: August 13, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Michiharu Nishii, Satoshi Ishida
-
Patent number: 5542133Abstract: A sanitary device is comprised of a tank storing an amount of water, a water pressure source, a cylinder, a nozzle pipe slidably fitted in the cylinder such that across the nozzle pipe a base side chamber and a distal side chamber are defined in the cylinder, a return spring accommodated in the distal side chamber and urging the nozzle pipe toward the retracted position thereof, and a control device serving for establishing either a first fluid communication between the tank and the base side chamber or a second fluid communication between the tank and the distal side chamber in such a manner that the first fluid communication brings the nozzle pipe into its operating position for ejecting the water while the water pressure is being supplied to the tank and the second fluid communication, together with the return spring, brings the nozzle pipe into its retracted position.Type: GrantFiled: September 30, 1994Date of Patent: August 6, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Tetsuo Makino, Hideki Furukawa, Osamu Matsubara, Atsushi Sawaki, Shinji Kawai
-
Patent number: 5542745Abstract: A seat apparatus for a vehicle includes a first bracket having an upper end and a lower end pivoted to a floor of the vehicle, a second bracket located behind the first bracket along the vehicle lengthwise direction and having an upper end and a lower end pivoted to the floor of the vehicle, a seat-cushion having a front end pivoted to the upper end of the first bracket and a rear end connected to the upper end of the second bracket so as to be movable relative thereto, a seat-back having a lower end connected fixedly to the upper end of the second bracket and making a reclining angle relative to the seat-cushion, a locking mechanism having a locking condition in which the reclining angle is held and an unlocking position in which the seat-back is rotatable relative to the seat-cushion, and an operating device for establishing the unlocking condition of the locking mechanism in concurrence with a rotation of the seat-back toward the seat-cushion in a vehicle frontward direction movement.Type: GrantFiled: June 7, 1995Date of Patent: August 6, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Nobuhiko Takeda, Yasuhiro Kojima
-
Patent number: 5540488Abstract: The present invention is directed to a hydraulic braking system having a hydraulic braking pressure circuit for braking each wheel of an automotive vehicle with brake fluid fed to a wheel cylinder operatively mounted on the wheel. The system includes an auxiliary pressure source which has an inlet for introducing the brake fluid and an outlet connected to the pressure circuit for discharging thereinto the pressurized brake fluid. A circulation passage is disposed between the outlet and the inlet for communicating with each other. An auxiliary valve is disposed in the circulation passage so as to open or close the passage. An auxiliary reservoir is connected to the circulation passage between the valve and the inlet of the source. The auxiliary reservoir has a capacity for storing a predetermined amount of brake fluid. And, a controller is provided for driving the source and actuating the valve so as to open or close the circulation passage.Type: GrantFiled: July 14, 1995Date of Patent: July 30, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Tadashi Terazawa, Michiharu Nishii
-
Patent number: 5540620Abstract: A torque vibration absorbing device includes a clutch hub with a flange extending radially, a pair of intermediate plates disposed at both outsides of the flange so as to be rotatable relative to the flange, a disc plate and a sub-plate disposed at the outside of the intermediate plates so as to be rotatable relative to the flange and the intermediate plates, a plurality of connecting pins which connect the disc plate and the sub-plate, and a plurality of elastic members provided in series at the inside of the disc plate and the sub-plate through the intermediate plates, wherein at least one elastic member is maintained at a predetermined amount of compression when a torsional degree between the flange and each of the disc plate and the sub-plate is changed to be larger than the predetermined amount thereof and the other elastic members are continued to be compressed exceeding the predetermined amount of compression.Type: GrantFiled: June 2, 1995Date of Patent: July 30, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoshitomi Haneda, Hiroshi Suzuki
-
Patent number: 5540477Abstract: A window molding for a vehicle includes a main portion disposed between a vehicle body and a vehicle window, an ornament portion connected with the main portion along the length of the main portion and for covering between the vehicle body and the vehicle window, a lip portion which is connected with the main portion so as to form a groove with the ornament portion and a projection portion disposed on one end portion of the groove which gradually increases in the direction of the one end of the groove so as to fill the groove.Type: GrantFiled: October 12, 1993Date of Patent: July 30, 1996Assignee: Aisin Seiki Kabushiki KaishaInventor: Kazuo Mori
-
Patent number: 5540165Abstract: The invention is directed to a sewing head driving apparatus for a sewing machine which has a table, a lower rotary shaft provided horizontally below a table, a sewing head provided above the table in spaced relationship therewith, an upper rotary shaft provided horizontally in the sewing head, a transmission mechanism for transmitting a rotational force to rotate the upper rotary shaft and the lower rotary shaft in synchronous relationship with each other, and a needle driving device for reciprocating a needle vertically in accordance with rotation of the upper rotary shaft.Type: GrantFiled: April 12, 1995Date of Patent: July 30, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Yutaka Katou, Tadaaki Hashiride
-
Patent number: 5541615Abstract: A three band antenna unit for reception of radio waves in the AM and FM bands and for reception and transmission of radio waves in the UHF band as well as its connection with filters and a communication equipment are disclosed. The antenna unit includes an upper, first element for reception and transmission of a radio wave in the UHF band and a lower, second element for reception of radio waves in the FM band, both connected to a mobile telephone. An AM band signal from the first element is transmitted to the lower, second element through an AM band pass filter. A radio wave signal from the lower, second element is transmitted to an AM/FM tuner through an AM/FM band pass filter.Type: GrantFiled: March 28, 1994Date of Patent: July 30, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Eiji Koide, Yuichi Murakami, Akimasa Yoshida, Kiyokazu Ieda, Kazuo Sato
-
Patent number: 5538335Abstract: The hydraulic brake system for a vehicle which can perform anti-lock control includes a brake circuit for connecting a master cylinder to wheel brakes, a control valve circuit for decreasing hydraulic brake pressure in the wheel brake by discharging brake fluid from the wheel brake to a reservoir, a plunger pump driven by an electric motor for returning brake fluid from the reservoir to the brake circuit and a slit formed on at least the discharge valve seat or the suction valve seat of the pump unit for evacuating the pump chamber of the plunger pump. The hydraulic brake system can further include a one-way valve which permits communication between the pressure chamber of the pump with the reservoir for evacuation.Type: GrantFiled: July 28, 1995Date of Patent: July 23, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Tadao Saito, Yasuhito Sekihara, Hiroyuki Hattori, Hirohisa Kuwana, Hiroshi Toda, Ryuji Takagaki
-
Patent number: 5535868Abstract: A viscous fluid coupling device comprises a housing; a partition board dividing an internal space in the housing into a storage chamber and an operation chamber, the partition board having first communicating holes to communicate the storage chamber with the operation chamber; a rotor which is provided in the operation chamber and is secured to one end portion of a drive shaft so as to rotate together with the drive shaft; a valve provided in the storage chamber to open and close the first communicating holes; and a rod having one end secured to the valve and the other end secured to the inner peripheral portion of a spiral bimetal. The rod is rotatably supported by the housing and the housing and the rotor have labyrinth grooves in the surfaces which are confronted with each other.Type: GrantFiled: August 18, 1994Date of Patent: July 16, 1996Assignee: Aisin Seiki Kabushiki KaishaInventor: Mitsutoshi Hagiwara
-
Patent number: 5535705Abstract: A variable valve timing system includes helical splines to effect a relative rotation between an input member and an output member. The output member drives an intake and an exhaust valve against the urging force of a valve spring. The valve spring gives an undesired torque to the output member. The helical splines have backlash and the undesired torque causes a hitting noise. Therefore, a guide depression filled with viscous fluid is formed in front of the input member and a projection located and moved in the depression is formed in front of the output member. The depression and the projection with the viscous fluid form a damper to absorb the undesired torque.Type: GrantFiled: March 24, 1995Date of Patent: July 16, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Katsuhiko Eguchi, Atsushi Sato, Kenji Fujiwaki
-
Patent number: 5537263Abstract: An under view mirror apparatus for a vehicle comprises a mirror structure mountable on a rear portion of a vehicle and selectively positionable in either a first condition in which the mirror structure is stored in the rear portion of the vehicle and a second condition in which the mirror structure projects out from the rear portion of the vehicle, an operating mechanism which is adapted to be disposed between the rear portion of the vehicle and the mirror structure and which supports the mirror structure and moves the mirror structure between the first condition and the second condition. The operating mechanism includes a guide rail for being fixed on the rear portion of the vehicle, a first link slidably supported on the guide rail and connected with the mirror structure, and a second link connected to one of the mirror structure and the first link. The apparatus also includes a driving device connected to the operating mechanism for driving the operating mechanism.Type: GrantFiled: July 15, 1993Date of Patent: July 16, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Hidekazu Kogita, Masumi Nishikawa, Shoji Okada
-
Patent number: 5531514Abstract: In a hydraulic brake system for a vehicle, the brake fluid in a first wheel brake and the brake fluid in a second wheel brake, which are hydraulically connected to a pressure generating chamber of a master cylinder, are caused to individually flow into a low back pressure reservoir with the aid of an electromagnetic change-over valve and electromagnetic cut-off valves. The brake fluid in the low back pressure reservoir is caused to flow through a check valve and an orifice into the first wheel brake and through another check valve and another orifice into the second first wheel brake by the operation of a pump which is driven by an electric motor. With the pump in operation, the electromagnetic cut-off valves are individually operated so that the first and second wheel brakes are decreased or reincreased in hydraulic pressure. Thus, the system is low in manufacturing cost, being operable with only one pump and only one low back pressure reservoir.Type: GrantFiled: May 25, 1995Date of Patent: July 2, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Michiharu Nishii, Hiroshi Toda, Akihito Kusano, Yoshiki Noda
-
Patent number: 5532125Abstract: A method for assaying nucleic acids or similar compounds comprises binding a sample such as a nucleic acid to phosphatase; reacting the phosphatase with a 3-hydroxy-2-naphthoic acid-2'-phenyl anilide phosphate; irradiating the reaction product with an excited light; and detecting fluorescence emitted therefrom.Type: GrantFiled: April 6, 1993Date of Patent: July 2, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Satoshi Fujita, Naoto Kagiyama, Masayoshi Momiyama
-
Patent number: 5532567Abstract: Suppression of a peak noise level as may be caused by a resonance when an SR motor is driven is intended. An offset is intentionally provided between a position for a maximum drive efficiency where the energization is to be switched and a position where the energization is actually switched. Such offsets s1, s2, s3, . . . are generated in terms of random numbers, producing a fluctuation in the frequency of the oscillations which result. The fluctuation in the frequency is effective to prevent the occurrence of a resonance. In order to avoid a resulting reduction in the drive efficiency, the magnitude of such offsets are limited to lie within a permissible shift angle, which is in turn determined in terms of the prevailing torque and number of revolutions, by reference to a map.Type: GrantFiled: March 28, 1995Date of Patent: July 2, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Shinichiro Iwasaki, Masanori Sugiyama, Chiaki Umemura, Akemi Ookawa, Hisayoshi Takahashi
-
Patent number: 5529355Abstract: A vehicle door lock apparatus includes a body for being fixed to a mounting portion of a door, a latch mechanism disposed in the body, a case for being disposed between the mounting portion of the door and the body, and an actuating mechanism surrounded by the body and the case. The case is joined with a fixed side of the body which faces and is opposite to the mounting portion of the door so that seepage of water into the body and damage to the actuating mechanism does not occur.Type: GrantFiled: April 26, 1994Date of Patent: June 25, 1996Assignee: Aisin Seiki Kabushiki KaishaInventor: Ryoichi Fukumoto
-
Patent number: 5529397Abstract: A seat slide device for use in a vehicle includes a lower rail for fixing to a floor of the vehicle and having a generally U-shaped channel cross-section defined by a base arm and side arms, an upper rail for fixing to a seat of the vehicle and slidably supported on the lower rail and having a generally inversely T-shaped channel cross-section defined by a bar and a flange, balls disposed between the lower rail and the upper rail and contacting the bar and a corner portion between the base arm and each side arm, an inward portion formed in an end portion of each of the side arms, an ear portion formed in an end portion of the bar and positional within the inward portion, and projections formed on one of the side arms and the bar and contacting the other of the side arms and the bar.Type: GrantFiled: June 7, 1995Date of Patent: June 25, 1996Assignee: Aisin Seiki Kabushiki KaishaInventor: Tadasu Yoshida