ACCELERATOR DEVICE

摘要

An accelerator device includes a first cover that provides an internal space for housing a return spring and a failure region where the first cover engages a second cover. The failure region has a thickness configured to be thinner than a thickness of a body of the first cover. When a pedal rotates to open an accelerator, a second cover side friction member creates a force that pushes the second cover toward an outside of the device. The force is relayed to a contact portion of the first cover via a contact portion of the second cover and causes a failure of the failure region. As a result, the return spring is prevented from falling out of the internal space when the body breaks.

主权项

1. An accelerator device comprising:
a support member that is attachable to a vehicle body; a shaft rotatably supported by the support member and rotatable in an accelerator opening direction and an accelerator closing direction, which are opposite to each other; a boss portion attached onto an outer wall of the support member and rotatable integrally with the shaft; a pedal connected to the boss portion and actuatable by a driver; a friction member positioned between the boss portion and the support member, and pressed against an inner wall of the support member when the boss portion rotates in the accelerator opening direction; a rotation angle detector detecting a rotation angle of the shaft relative to the support member; and a biasing member biasing the shaft to rotate in the accelerator closing direction, wherein the support member includes (i) a housing that supports one end portion of the shaft, (ii) a first cover defining an internal space in which the biasing member is housed, and (iii) a second cover engaging the first cover, supporting an other end portion of the shaft, and receiving a pressing force from the friction member, and the first cover has a failure region that fails when an excessive pressing force exceeding a threshold pressing force is applied to the first cover from the friction member via the second cover.