Patents Assigned to Toyo Denso Co., Ltd.
  • Patent number: 8416040
    Abstract: In a joystick device, a rotation position detector for detecting a rotation position of a rotatable cylinder having one end coupled with a dial knob is provided between the cylinder and a case. The detector includes a drive gear provided around the cylinder, a rotary body which has a driven gear provided around its outer periphery and is in mesh with the drive gear, multiple magnets provided on the rotary body, and a magnetic sensor provided in the case to face one end portion of the rotary body to detect the rotation position of the cylinder based on positional change relative to the magnets along with rotation of the rotary body. Such arrangement enhances the degree of design freedom for arranging a magnetic sensor in the axial direction of the cylinder in detecting a rotation position of the cylinder by the sensor and reduces a necessary number of magnets.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 9, 2013
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Takanori Terao, Satoru Nakagawa
  • Publication number: 20120260763
    Abstract: In a joystick device, a rotation position detector for detecting a rotation position of a rotatable cylinder having one end coupled with a dial knob is provided between the cylinder and a case. The detector includes a drive gear provided around the cylinder, a rotary body which has a driven gear provided around its outer periphery and is in mesh with the drive gear, multiple magnets provided on the rotary body, and a magnetic sensor provided in the case to face one end portion of the rotary body to detect the rotation position of the cylinder based on positional change relative to the magnets along with rotation of the rotary body. Such arrangement enhances the degree of design freedom for arranging a magnetic sensor in the axial direction of the cylinder in detecting a rotation position of the cylinder by the sensor and reduces a necessary number of magnets.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Takanori TERAO, Satoru NAKAGAWA
  • Publication number: 20120260760
    Abstract: In a joystick device where a tilting operation direction of an operation shaft is detected based on positional change of a magnet relative to a magnetic sensor, the magnet being moved with tilting of the operation shaft, a slider is arranged between a base facing a board fixed to a case and a magnet holder to which the operation shaft is swingably coupled; the magnet holder is joined to the slider such that the slider guides relative movement of the holder in a first linear direction orthogonal to the axis of the operation shaft but prevents relative movement of the holder in a second linear direction orthogonal to the first direction; and a guide mechanism configured to guide movement of the slider in the second direction is provided between the slider and the base. This prevents variation in the detection accuracy regardless of tilting of the shaft.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Takanori TERAO, Satoru NAKAGAWA, Hideaki ITO
  • Patent number: 8186240
    Abstract: A joystick type switch device is provided that includes an operating shaft having an operating knob provided at one end, and a case supporting the operating shaft so that the operating shaft can move between a return position and a pushed-in position and tilt from a neutral position around a tilt center, it being possible to detect pushing of the operating shaft into the pushed-in position and tilting of the operating shaft from the neutral position into eight directions, wherein the operating shaft (16) has a magnet mounted at the other end, and a portion, facing the magnet, of a base plate (22) mounted on the case has at least three Hall elements (43A to 43D) fixed thereto at equal intervals around the axis of the operating shaft (16) in the neutral position. This enables excellent durability to be obtained and the number of components to be reduced.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: May 29, 2012
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Naohiro Sakai, Yoshitaka Noguchi, Takashi Tsuzuki
  • Publication number: 20110083628
    Abstract: In a plughole waterproofing device for an engine, a coil case for covering an ignition coil is fitted onto the ignition coil that is accommodated, together with an ignition plug, in a plughole opened to an upper surface of an engine, and a longitudinal air path extending upward from a lower end portion of the case upper portion communicating with the plughole and a vent hole communicating with an upper end portion of the longitudinal air path and being opened to ambient air are provided in a case upper portion, protruding above the engine, of the coil case. The vent hole is provided in an upper portion of the case upper portion. A cover wall hanging while surrounding the vent hole is continuously provided on the case upper portion, and an air chamber is formed inside the cover wall, the vent hole being opened in an upper portion of the air chamber, an opening face being formed at an entire bottom of the air chamber in such a manner as to open toward the engine.
    Type: Application
    Filed: September 8, 2010
    Publication date: April 14, 2011
    Applicants: TOYO DENSO CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Shoji KISHI, Takahiro KAJIHARA, Makoto KURAHASHI, Gakuji MORIYA
  • Patent number: 7812275
    Abstract: A control knob is supported on a switch base via a first pivotal shaft. A movable contact holder holds a movable contact and is supported on the switch base via a second pivotal shaft substantially parallel with the first pivotal shaft. The movable contact holder is formed with first and second arms between which a sliding surface is formed. A control plunger sliding on the sliding surface is slidably fitted to the control knob. A return spring urges the control plunger in a direction to abut on the sliding surface. The control plunger is arranged such that, when the control knob tilts to the first and second operating positions, the tip end of the control plunger moves on the sliding surface to left and right sides with respect to a plane extending between axes of the first and second pivotal shafts, and such that the repulsive force of the return spring constantly urges the control knob toward the first operating position.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: October 12, 2010
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Takashi Nakamura, Hirokazu Nakata
  • Patent number: 7663477
    Abstract: In a turn signal control device for a vehicle having an automatic canceling function, a switch operating element is carried on a pivot shaft mounted in a fixed switch case so that the switch operating element can be returned and pushed-in between a returned position and a pushed-in position. The switch operating element is swingable at the returned position between a neutral position and a left-turn indicating position and a right-turn indicating position. The switch operating element is pushed-in to the pushed-in position by push-in operation at the returned position. The switch operating element is resiliently urged toward the neutral position and there turned position. A winker switch is operatively connected to the switch operating element so as to break the connection of a left-turn indicating means or a right-turn indicating means to a flasher unit in response to push-in of the switch operating element to the pushed-in position.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: February 16, 2010
    Assignees: Toyo Denso Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Kazuma Shimizu, Takashi Nakamura, Tsutomu Tozuka, Yoshiaki Takeuchi
  • Patent number: 7604363
    Abstract: A light-emitting device includes EL sheets assembled according to insert molding, a fixing body disposed on rear surfaces of the EL sheets and having a groove and holes for holding the EL sheets prior to being assembled according to insert molding in a desired position, and a molded body disposed on front surfaces of the EL sheets. The molded body is injection-molded in covering relation to the EL sheets held on the fixing body to integrally combine the fixing body and the EL sheet with the molded body according to insert molding.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: October 20, 2009
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Seiji Tanigawa, Hideaki Takahashi, Michitaka Kamimura, Harumi Eguchi
  • Patent number: 7560656
    Abstract: A control knob is supported on a switch base via a first pivotal shaft. A movable contact holder holds a movable contact, faces an inner side face of the control knob, and is supported on the switch base via a second pivotal shaft. The movable contact holder is provided with a sliding surface which faces the control knob. A control plunger whose tip end slidably abuts on the sliding surface is fitted to the control knob so as to be slidable in a direction perpendicular to an axis of the first pivotal shaft. A spring is provided between the control knob and the control plunger so as to urge the control plunger to a direction to but on the sliding surface. The movable contact is attached to the movable contact holder so as to come into contact with the stationary contact when the movable contact holder is turned to at least one of first and second actuation positions.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: July 14, 2009
    Assignee: Toyo Denso Co. Ltd
    Inventors: Shoji Okatani, Hirokazu Nakata
  • Patent number: 7482547
    Abstract: It is an object of the present invention to provide a push button switch in which is achieved a light blocking structure that is efficient and permits the button to be pushed in, disposed adjacent to other push button switches on the same substrate in a direction perpendicular to the direction in which the button is pushed in, so that the light from light sources assigned different functions will not interfere one with the other. The push button switch of the present invention comprises LEDs disposed adjacent to each other on the same substrate, two light barriers erected apart from each other and in between the LEDs, and one light barrier provided on the back side of a control knob, wherein the distal end of the one light barrier is in a positional relationship of fitting into the gap between the two light barriers, and the two light barriers are tall enough to permit the displacement of the one light barrier when the control knob is pushed in.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: January 27, 2009
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Kenji Katsumoto, Tsunetaka Shibata
  • Patent number: 7439464
    Abstract: Enhancing efficiency in assembling a waterproof switch, and enhance flexibility of seal design. The waterproof switch 7 includes a plunger 11 accommodated in a cylindrical case 10 capable of moving in the longitudinal direction, and to which a spring 17 applies a force in a direction. One end of the plunger 11 is provided with a common contact point 16 which contacts with contact point terminals 18 and 19 when predetermined amount of displacement to the spring 17 which applies the force to the plunder 11 is provided. A concave portion 10a is that to which a seal 13 for a sliding part of the plunger 11 is attached, and this concave portion 10a is provided to an end portion of the case 10. Assembling is proceeded while recognizing how the seal 13 is attached thereto from the appearance in the assembling process.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: October 21, 2008
    Assignees: Honda Motor Co., Ltd., Toyo Denso Co., Ltd.
    Inventors: Takao Yamamoto, Yukiyoshi Takatsu, Noriaki Ohta
  • Patent number: 7402767
    Abstract: In a handle switch device of a vehicle, a switch casing which surrounds a bar handle and accommodates a switch in the inside thereof is mounted on the bar handle, and a manipulation knob which manipulate the switch is mounted on a rear wall of the switch casing. The manipulation knob is arranged substantially at the same height as the bar handle and is tiltably supported on the switch casing by way of a pivot shaft, the switch is formed of a slide-type switch in which a movable contact holder slides, the switch is arranged in the inside of the switch casing above or below the bar handle, and the manipulation knob and the movable contact holder are connected with each other by way of moving direction conversion means which converts a tilting of the manipulation knob to a linear movement and transmits the linear movement to the movable contact holder. Thus, it is possible to provide a handle switch device of a vehicle which exhibits favorable manipulability of a manipulation knob and has a compact shape.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: July 22, 2008
    Assignees: Toyo Denso Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Tsutomu Tozuka, Takashi Nakamura, Hirokazu Nakata, Koichi Hikichi, Shigeru Kodaira, Masaru Nakayama
  • Publication number: 20080151564
    Abstract: A light-emitting device includes EL sheets assembled according to insert molding, a fixing body disposed on rear surfaces of the EL sheets and having a groove and holes for holding the EL sheets prior to being assembled according to insert molding in a desired position, and a molded body disposed on front surfaces of the EL sheets. The molded body is injection-molded in covering relation to the EL sheets held on the fixing body to integrally combine the fixing body and the EL sheet with the molded body according to insert molding.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 26, 2008
    Applicant: Toyo Denso Co., Ltd.
    Inventors: Seiji Tanigawa, Hideaki Takahashi, Michitaka Kamimura, Harumi Eguchi
  • Publication number: 20080098984
    Abstract: The object of the present invention is to provide a multifunction ignition device integrated with a spark plug for conserving space by integrating a spark plug, ignition coil, and fuel injection device in a single enclosure and for making a high fuel efficiency engine design possible and allowing spark plug electrode replacement, thereby reducing waste during plug maintenance. The multifunction ignition device of the present invention includes an ignition coil directly connected to a plug top of an internal combustion engine; the ignition coil, a fuel injection valve, and a fuel injection nozzle are housed in a single enclosure; and a center electrode and a ground electrode of the spark plug are removably mounted at the bottom end of the enclosure.
    Type: Application
    Filed: October 23, 2007
    Publication date: May 1, 2008
    Applicant: TOYO DENSO CO., LTD.
    Inventor: Makoto SAKAMAKI
  • Patent number: 7332684
    Abstract: A turn signal switch for a vehicle includes: a resiliently urging means provided between a switch operating element and a switch case so as to urge the switch operating element toward a neutral position and a returned position. The resiliently urging means includes: a return plate having a guide recess which is provided at one end and against which abuts a first pin provided on the switch operating element, the return plate being slidably supported on the switch case; a pair of return springs exhibiting spring forces for urging the return plate in a direction to bring the pin into abutment against the guide recess. The guide recess is curved into a substantially triangular shape, and includes a valley and return cam faces on opposite sides of the valley. The return springs are provided on opposite sides of the valley and between the return plate and the switch case. Thus, it is possible to reduce the length of the turn signal switch in the direction of push-in/return of the switch operating element.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: February 19, 2008
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Tsutomu Tozuka, Takashi Nakamura
  • Publication number: 20080018326
    Abstract: The object of the present invention is to provide a multifunctional detector wherein two sensors, for detecting the rotational speed of the transmission gear and for detecting the temperature of the transmission oil are disposed in proximity in a single unit so that they can be connected easily to a control ECU through a single connector. The multifunctional detector for an engine according to the present invention is configured such that a sensor for detecting the rotational speed of the gear within a transmission for a vehicle and a sensor for detecting the temperature of the surrounding transmission oil are mounted on the same circuit board and provided in a single case, and such that a housing chamber therefor is filled with a resin having high thermal conductivity, and the outputs of both sensors are performed from a single connector.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 24, 2008
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Sadayoshi Ohshima, Toru Sugawara
  • Publication number: 20070163868
    Abstract: Enhancing efficiency in assembling a waterproof switch, and enhance flexibility of seal design. The waterproof switch 7 includes a plunger 11 accommodated in a cylindrical case 10 capable of moving in the longitudinal direction, and to which a spring 17 applies a force in a direction. One end of the plunger 11 is provided with a common contact point 16 which contacts with contact point terminals 18 and 19 when predetermined amount of displacement to the spring 17 which applies the force to the plunder 11 is provided. A concave portion 10a is that to which a seal 13 for a sliding part of the plunger 11 is attached, and this concave portion 10a is provided to an end portion of the case 10. Assembling is proceeded while recognizing how the seal 13 is attached thereto from the appearance in the assembling process.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 19, 2007
    Applicants: HONDA MOTOR CO., LTD., TOYO DENSO CO., LTD.
    Inventors: Takao Yamamoto, Yukiyoshi Takatsu, Noriaki Ohta
  • Publication number: 20070045093
    Abstract: It is an object of the present invention to provide a push button switch in which is achieved a light blocking structure that is efficient and permits the button to be pushed in, disposed adjacent to other push button switches on the same substrate in a direction perpendicular to the direction in which the button is pushed in, so that the light from light sources assigned different functions will not interfere one with the other. The push button switch of the present invention comprises LEDs disposed adjacent to each other on the same substrate, two light barriers erected apart from each other and in between the LEDs, and one light barrier provided on the back side of a control knob, wherein the distal end of the one light barrier is in a positional relationship of fitting into the gap between the two light barriers, and the two light barriers are tall enough to permit the displacement of the one light barrier when the control knob is pushed in.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 1, 2007
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Kenji Katsumoto, Tsunetaka Shibata
  • Patent number: 6915567
    Abstract: An housing of a meter unit is inserted from above into a meter unit support hole which is provided in the rear handle cover. Engagement claws of the housing are engaged with claw receiving portions of the rear handle cover, thereby prevent the housing from coming out. Male connector is provided beforehand in the rear handle cover, and inserting the housing of the meter unit into the meter unit support hole causes the female connector of the housing to be automatically connected to the male connector, thus completing the wiring work of the meter unit. The wiring work on the meter unit supported on the rear handle cover of the motorcycle can therefore be performed easily and reliably.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: July 12, 2005
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Kazuhiko Nakao, Yukihiro Hayasaka, Hiroshi Sakamoto
  • Publication number: 20020025695
    Abstract: An housing of a meter unit is inserted from above into a meter unit support hole which is provided in the rear handle cover. Engagement claws of the housing are engaged with claw receiving portions of the rear handle cover, thereby prevent the housing from coming out. Male connector is provided beforehand in the rear handle cover, and inserting the housing of the meter unit into the meter unit support hole causes the female connector of the housing to be automatically connected to the male connector, thus completing the wiring work of the meter unit. The wiring work on the meter unit supported on the rear handle cover of the motorcycle can therefore be performed easily and reliably.
    Type: Application
    Filed: October 29, 2001
    Publication date: February 28, 2002
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Kazuhiko Nakao, Yukihiro Hayasaka, Hiroshi Sakamoto