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Noboru Fujiwara

Noboru Fujiwara, Aichi-Ken JP

Patent application numberDescriptionPublished
20090049932DEVICE FOR DETECTING AMOUNT OF PEDAL OPERATION - In a pedal operation amount detecting apparatus, a brake pedal and a clevis secured at an end portion of an operating rod are pivotably connected by a connecting shaft, a bush is arranged between the brake pedal and the connecting shaft, detectors are attached on an outer circumferential surface of an elastically deformable bush main body of the bush, and an ECU calculates a pedal tread force based on loads detected by the detectors, whereby a simplified structure, an improved mountainability, and a highly accurate detection of an operation amount can be realized.02-26-2009

Noboru Fujiwara, Toyota-Shi JP

Patent application numberDescriptionPublished
20080223171Operating pedal device having load sensor for vehicle, and operating device having load sensor - A clevis pin (connecting pin) (09-18-2008
20080245178Apparatus for applying a reaction force to a pivotally supported pedal member upon depression thereof - An apparatus for applying a reaction force to a pedal member. The apparatus includes: a reaction-force applying device for applying the reaction force to the pedal member and changing the reaction force; and a reaction-force controlling device for controlling the reaction-force applying device such that the reaction force is changed on the basis of a depressing stroke of the pedal member. The reaction-force applying device includes a spring member connected with the pedal member, and a reaction-force changing mechanism for changing the reaction force, by moving an end of the spring member toward and away from the pedal member. The reaction-force changing mechanism includes a feed screw mechanism for moving the end of the spring member toward and away from the pedal member. The feed screw mechanism includes an externally threaded shaft rotatable and held in engagement with an internally threaded hole formed in a spring seat that is held in engagement with the end of the spring member.10-09-2008
20080250874Load and load direction detecting apparatus - A load and load direction detecting apparatus is so constructed that a shear force acts on a cylindrical strain body when a load W is applied from a displacing member to a case member in a direction perpendicular to an axis of the strain body. Thus, the strain body deforms readily. Consequently, detecting sensitivity of the value of load W is improved, which is calculated by a first differential amplifier (load value calculating unit) based on an output voltage output from a first bridge. A direction (θ10-16-2008
20080250894Load-sensor-equipped vehicle operating pedal device and load-sensor-equipped operating device - A load-sensor-equipped vehicle operating pedal device includes a load sensor (10-16-2008
20080307920Load sensor-equipped operating apparatus - This invention relates to a load sensor-equipped operating apparatus, which comprises an operational member (12-18-2008
20110290066Operating pedal device for vehicle - An operating pedal device for a vehicle, includes: an operating pedal disposed at a pedal support fixed to a vehicle so as to be pivotable about an axis of a support shaft, and depressed by a driver; a reaction force member connected to the operating pedal through at least one connecting portion connecting paired members in a manner such that the paired members are relatively pivotable about a connecting pin, an output in accordance with an operating force of the operating pedal being transmitted to the reaction force member, and a reaction force corresponding to the output being applied to the reaction force member; a strain detecting element disposed in an elastic portion deformed by the reaction force, the strain detecting element electrically detecting the operating force by being deformed together with the elastic portion; in one of the paired members connected by one of the at least one connecting portion, an opening provided near the connecting pin to permit the connecting pin to be relatively displaced by the reaction force; and a portion of the one of the paired members, which is elastically deformed due to displacement of the connecting pin, being used as the elastic portion.12-01-2011

Patent applications by Noboru Fujiwara, Toyota-Shi JP

Noboru Fujiwara, Aichi-Gun JP

Patent application numberDescriptionPublished
20120255372OPERATION AMOUNT DETECTION APPARATUS - An operation amount detection apparatus includes a transmission member that transmits a load corresponding to an operation amount between a shaft portion and an operation target member through connecting portions that connect a first support portion supported by the operation target member and a second support portion supported by the shaft portion, and a detection device that detects an operation amount based on an amount of deformation of the connecting portions. A plurality of the connecting portions are provided in parallel between the first support portion and the second support portion, and deflect due to transmission of a load so that the first support portion and the second support are relatively displaced in a direction of a linear motion. The respective connecting portions are mutually opposed in a direction perpendicular to a lengthwise direction of the shaft portion.10-11-2012