Abstract: An accelerator pedal for a vehicle, which has a hysteresis generation structure may be provided. The accelerator pedal for a vehicle includes: a housing; a cylindrical hinge which is connected to the housing; a main pedal arm which is coupled to one side of the hinge and rotates in a first direction in close contact with a first action point of the one side of the hinge when a predetermined force is applied; an auxiliary pedal arm which is coupled to the other side of the hinge and rotates in a second direction in close contact with a second action point of the other side of the hinge by an elastic force when the force applied to the main pedal arm is removed; and a spring which is coupled to a bottom of one end of the auxiliary pedal arm and applies the elastic force to the auxiliary pedal arm.

Abstract: An accelerator pedal for a vehicle, which has a hysteresis generation structure, is provided. The accelerator pedal includes: a housing including a pivot shaft; a pedal unit which is rotatably connected to the pivot shaft and has a pivot hole; a hysteresis generation member which receives a portion of the pedal unit and has an extension part that hits against the pedal unit and rotating in a direction in which the pedal unit rotates, when the pedal unit is rotated by applying a force to the pedal unit; and an elastic member which has an end connected to the extension part of the hysteresis generation member and applies an elastic force to the hysteresis generation member. When the force applied to the pedal unit is removed, the hysteresis generation member rotates in an opposite direction to the rotation direction of the pedal unit.

Abstract: An accelerator pedal for a vehicle, which has a hysteresis generation structure may be provided. The accelerator pedal for a vehicle according to the embodiment of the present invention includes: a housing; a cylindrical hinge which is connected to the housing; a main pedal arm which is coupled to one side of the hinge and rotates in a first direction in close contact with a first action point of the one side of the hinge when a predetermined force is applied; an auxiliary pedal arm which is coupled to the other side of the hinge and rotates in a second direction in close contact with a second action point of the other side of the hinge by an elastic force when the force applied to the main pedal arm is removed; and a spring which is coupled to a bottom of one end of the auxiliary pedal arm and applies the elastic force to the auxiliary pedal arm.

Abstract: An inspection system and method for inspecting a sidewall of a wafer to detect a wafer having a sidewall defect. The inspection system includes, a wafer revolver driven by a driving source for rotating the wafer, an image capturing unit for capturing image information of the sidewall of the wafer rotating by the wafer revolver, and an analyzer comparing captured image data to image data of a desired wafer sidewall and determining whether the inspected wafer is acceptable in accordance with the comparison. The image capturing unit may include an illuminator for illuminating the sidewall of the wafer rotated by the wafer revolver and a detector for capturing image data for the sidewall of the wafer illuminated by the illuminator.