Abstract: A steering wheel deice comprising: a horn spring provided between a steering wheel and an airbag module which serves as a damper mass; a damper unit provided on the airbag module; and a pin, one end of which is held by the steering wheel, and at another end of which the damper unit is disposed in a slidable manner. A conduction circuit of a horn includes: the pin which is formed from an electrically conductive material; a horn contact that is provided on the airbag module and that contacts and separates from the pin due to elastic deformation of the horn spring; and a U-shaped spring that is provided to the steering wheel and that conducts by clipping the pin.

Abstract: Providing of a gripping determination system and gripping determination method enabling detecting whether or not the driver is gripping the steering device with higher accuracy. A gripping determination system that determines a gripping state of a steering device having an electrode on a part of a steering device of a vehicle, includes: an electrostatic capacitance detecting part that detects electrostatic capacitance of the electrode, a steering torque sensor that detects steering torque of the steering wheel shaft, and a determining part that determines whether or not the steering device is being gripped based on detection results of the electrostatic capacitance detecting part and the steering torque sensor.

Abstract: A steering wheel deice comprising: a horn spring provided between a steering wheel and an airbag module which serves as a damper mass; a damper unit provided on the airbag module; and a pin, one end of which is held by the steering wheel, and at another end of which the damper unit is disposed in a slidable manner. A conduction circuit of a horn includes: the pin which is formed from an electrically conductive material; a horn contact that is provided on the airbag module and that contacts and separates from the pin due to elastic deformation of the horn spring; and a U-shaped spring that is provided to the steering wheel and that conducts by clipping the pin.

Abstract: Providing of a gripping determination system and gripping determination method enabling detecting whether or not the driver is gripping the steering device with higher accuracy. A gripping determination system that determines a gripping state of a steering device having an electrode on a part of a steering device of a vehicle, includes: an electrostatic capacitance detecting part that detects electrostatic capacitance of the electrode, a steering torque sensor that detects steering torque of the steering wheel shaft, and a determining part that determines whether or not the steering device is being gripped based on detection results of the electrostatic capacitance detecting part and the steering torque sensor.

Abstract: A vehicle steering wheel structure which, while having a configuration in which small damper masses are arranged in a distributed manner, can secure the same highly efficient vibration reducing effect as when a large damper mass is arranged, without increasing the required installation space and the cost. The vehicle steering wheel structure includes a plurality of damper masses arranged so as to be distributed in an inner region of a rim portion of a steering wheel; a connection member that connects these damper masses; and a damper module disposed in the inner region of the rim portion.

Abstract: A steering wheel providing minimal cost increase due to addition of a temperature adjustment function. The steering wheel, includes: a boss portion to be connected to a steering column; a grip portion to be gripped by a driver; and a spoke portion, which connects the boss portion and the grip portion to each other. The grip portion includes: a synthetic resin layer molded by a synthetic resin; a cored bar; a flexible porous material layer disposed on an outer peripheral surface side of the cored bar; and a heater element disposed on an outer surface of the porous material layer. The porous material layer and the heater element are covered by the synthetic resin layer.

Abstract: A steering wheel that enables heat to be efficiently conducted to a steering wheel outer covering. The steering wheel includes: a core; a spacer member arranged around an outer periphery of a rim portion of the core; a temperature adjusting element provided on the spacer member; and a resin layer formed to cover an outside portion of the spacer member. The spacer member keeps at least a part of the temperature adjusting element away from the core.

Abstract: A steering wheel providing minimal cost increase due to addition of a temperature adjustment function. The steering wheel, includes: a boss portion to be connected to a steering column; a grip portion to be gripped by a driver; and a spoke portion, which connects the boss portion and the grip portion to each other. The grip portion includes: a synthetic resin layer molded by a synthetic resin; a cored bar; a flexible porous material layer disposed on an outer peripheral surface side of the cored bar; and a heater element disposed on an outer surface of the porous material layer. The porous material layer and the heater element are covered by the synthetic resin layer.

Abstract: A steering wheel that enables heat to be efficiently conducted to a steering wheel outer covering. The steering wheel includes: a core; a spacer member arranged around an outer periphery of a rim portion of the core; a temperature adjusting element provided on the spacer member; and a resin layer formed to cover an outside portion of the spacer member. The spacer member keeps at least a part of the temperature adjusting element away from the core.

Abstract: A vehicle steering wheel structure which, while having a configuration in which small damper masses are arranged in a distributed manner, can secure the same highly efficient vibration reducing effect as when a large damper mass is arranged, without increasing the required installation space and the cost. The vehicle steering wheel structure includes a plurality of damper masses arranged so as to be distributed in an inner region of a rim portion of a steering wheel; a connection member that connects these damper masses; and a damper module disposed in the inner region of the rim portion.