Nissan Motor Company Limited

Other

Fuji Kiko Co., Ltd.

Yorozu Corporation

Hiroyuki Mizuma

Sadahiro Kawahara

Sunao Gouhara

Tohru Kobayashi

Yoshimasa Kataumi

Yasushi Asano

Jun Sato

Kazumi Sukeshita

Tsutomu Aoki

Naoyuki Sugiyama

Tetsuya Ichikawa

Masaharu Ishizuki

A brake pedal apparatus for a vehicle is provided with a pedal bracket having a pivot shaft, a pivot bracket having a pedal shaft, a pedal arm, a slide plate fixed to a body structural member of the vehicle and located between the body structural member and the pedal bracket, an impact absorbing section, and a rotational motion assisting section. The impact absorbing section permits relative movement of the pivot bracket and the body structural member in a longitudinal direction of the vehicle when the pedal bracket encounters an external force directed rearward of the vehicle at a level beyond a predetermined load, in such a manner that the pivot bracket disengages from the slide plate to allow the pivot bracket to rotate about the pivot shaft while rotating the pedal shaft therewith rearwardly downward of the vehicle. Also, the rotational motion assisting section is normally held in an inoperative position, and operable to be brought into abutting engagement with at least one of the body structural member and the slide plate to promote rotational movement of the pivot bracket about the pivot shaft caused by the impact absorbing section.

Brake pedal apparatus for vehicle

A brake pedal apparatus for an automotive vehicle is disclosed as including a pedal bracket , a pivot bracket , a slide plate fixedly secured to a vehicular body structural member , and an impact absorbing section located between the pedal bracket and the slide plate. During a frontal collision of a vehicle, the impact absorbing section allows the pedal bracket to be contracted and deformed into a position wherein a pedal arm is retracted in a forward direction of the vehicle whereby even when a master vac. is retracted in the forward direction or even when a dash floor panel is deformed into a vehicle compartment with a resultant rearward movement of a push rod , a depressing position of the pedal arm remains in a position to avoid a differential feeling touch to be applied to a vehicle driver.

Brake pedal apparatus for automotive vehicle

A brake pedal structure for a vehicle includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.

Brake pedal structure for vehicle

A brake pedal apparatus of a vehicle is provided with a pedal bracket having a shaft and a first fixed portion to a first vehicle body member at its front portion, a pivot bracket rotatable pivoted to the shaft and provided with a pedal shaft apart from the shaft in a longitudinal direction of the vehicle, a pedal arm rotatably pivoted to the pedal shaft, and a lock plate having an engagement portion allowing relative movement with respect to at least the pivot bracket when a backward input over a predetermined load is applied to the pedal bracket and engaging with the pivot bracket in a normal state. In this structure, when the backward input over the predetermined load is applied to the pedal bracket, whereby the lock plate relatively moves, an engagement between the pivot bracket and the lock plate is disconnected, and the pivot bracket is downward rotated around the shaft

Brake pedal apparatus of vehicle

A brake pedal structure for a vehicle disclosed herein includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.

When a collision detecting mechanism,detects a front collision of a vehicle, a clutch mechanism,integrally connecting a pedal arm,to a push rod lever,connecting a push rod,of a Master vac,is disconnected. Accordingly, even when the push rod,is backward moved together with the Master vac,the push rod lever,strikes the air, so that a collision load does not act on the pedal arm

A brake pedal apparatus for a vehicle includes a pedal bracket provided on a dash panel, a pedal shaft provided on the pedal bracket, a pedal arm supported by the pedal shaft in a rotatable manner around the pedal shaft, a first engaging portion provided on the pedal arm, a push rod lever supported by the pedal shaft in a rotatable manner around the pedal shaft and connected to a push rod, and a second engaging portion provided on the push rod lever. The push rod lever or the pedal arm is movable along the axial direction of the pedal shaft, and the first and second engaging portions are capable of engaging with each other. The apparatus further includes a biasing member for biasing the push rod lever or the pedal arm in a direction for releasing the engagement between the first and second engaging portions, and a spacer member which, in a normal state, positions the push rod lever and the pedal arm, and which, at the time of collision, detects the collision for allowing movable one of the push rod lever and the pedal arm along the axial direction of the pedal shaft to release the engagement between the first and second engaging portions.

A clutch linkage arrangement is provided with first and second assist spring units. The first assist spring unit applies to a pedal arm a depression resisting force upon rotatin of the pedal arm between a rest position and a transition position and a depression assisting force upon rotation of the pedal arm exceeding the transition position. The second assist spring unit applies to the pedal arm a depressiong assisting force upon rotation of the pedal arm between the rest position and the transition position. The second assist spring unit becomes ineffective on the pedal arm when the pedal arm is in the transition position or rotated beyond the transition position.

Pedal depression assisting mechanism

A pedal depression assisting mechanism is provided with first and second assist spring units. The first assist spring unit applies to a pedal arm a depression resisting force upon rotation of the pedal arm between a rest position and a transition position and a depression assisting force upon rotation of the pedal arm exceeding the transition position. The second assist spring unit applies to the pedal arm a depressing assisting force upon rotation of the pedal arm between the rest position and the transition position. The second assist spring unit becomes ineffective on the pedal arm when the pedal arm is in the transition position or rotated beyond the transition position.

Growing community of inventors

Kanagawa-ken, Japan

Hiroyuki Mizuma