摘要:
A spindle (2) of a seat belt retractor is rotationally driven when required by a motor (5) to the webbing take-up direction side through a power transmission mechanism section (6). Further, the spindle (2) is always connected to a take-up spring (7) and is always subjected to rotational power acting to the webbing take-up side. The structure enables a user wearing a seat belt to be restrained even in failure, realizing a safer and more reliable restraining device.
摘要:
A spindle (2) of a seat belt retractor is rotationally driven when required by a motor (5) to the webbing take-up direction side through a power transmission mechanism section (6). Further, the spindle (2) is always connected to a take-up spring (7) and is always subjected to rotational power acting to the webbing take-up side. The structure enables a user wearing a seat belt to be restrained even in failure, realizing a safer and more reliable restraining device.
摘要:
A retractor includes a slide nut that is caused to slide toward a tread head while rotating by a mesh between a first male screw groove and a female screw groove when the tread head is locked and a spindle rotates in a direction for unreeling a webbing, and a slider that is caused to slide toward the slide nut by a mesh between the female screw groove and a second male screw groove. A torsional rigidity of a second shaft part of a torsion bar is larger than that of a first shaft part, and a play is eliminated before a gap such that the slide nut and the slider are integrated.
摘要:
A seat belt device has a gas generator for generating a high pressure gas when the vehicle is in emergency, a cylinder for conducting the high pressure gas from the gas generator, a piston received movably within the cylinder and pressed and moved by the high pressure gas, and a drive unit for rotating a winding shaft of a seat belt retractor in a direction of removing the slack of a belt, using the movement of the piston, wherein the pretensioner is employed with the energy absorbing mechanism, for reversely rotating the winding shaft if a tension acting on the belt exceeds a predetermined value after removing the slack of the belt.
摘要:
An automotive passenger restraint and protection apparatus prevents damage to a seatbelt. An electric retractor having a motor for retracting and protracting the seatbelt includes the automotive passenger restraint and protection apparatus. The motor is controlled by a CPU. The CPU detects whether the seatbelt is attached to, or disconnected from, the occupant, and whether the seatbelt has been retracted to a limit thereof. The motor is controlled by the CPU such that when the CPU detects that the seatbelt is retracted and when the CPU subsequently detects that the seatbelt has been fully retracted to the limit thereof, the seatbelt is prevented from being further retracted.
摘要:
An automotive passenger restraint and protection apparatus for an automotive vehicle has a seatbelt and operates to restrain an occupant of the automotive vehicle by the seatbelt to protect the occupant. An electric retractor has a DC motor for retracting and protracting the seatbelt. An MPU controls the DC motor. Protraction of the seatbelt by the occupant is detected. When the protraction of said belt is detected, the MPU controls the DC motor so as to protract the seatbelt. A seatbelt protraction and retraction amount-detecting device calculates an amount of protraction or retraction of the seatbelt, based upon at least one of a number of times pulsating components of detected terminal voltage across the DC motor rises above a first predetermined value from a value below a first predetermined value, a number of times the pulsating components drops below a second predetermined value from a value above the second predetermined value, a frequency component obtained by frequency analysis of the pulsating components, and results of time integration of the detected terminal voltage, and a detected rotational direction of the motor.
摘要:
A retractor includes a slide nut that is caused to slide toward a tread head while rotating by a mesh between a first male screw groove and a female screw groove when the tread head is locked and a spindle rotates in a direction for unreeling a webbing, and a slider that is caused to slide toward the slide nut by a mesh between the female screw groove and a second male screw groove. A torsional rigidity of a second shaft part of a torsion bar is larger than that of a first shaft part, and a play is eliminated before a gap such that the slide nut and the slider are integrated.
摘要:
The present invention provides a seat belt system comprising: a moving element (36) rotatably received in a housing (26); a device (32) for applying a pressurized gas to the moving element (36) when abrupt deceleration occurs on a vehicle; a tensile member (40) responsive to movement of the moving element (36) extruded due to the pressurized gas to generate a rotational torque; and a clutch mechanism (44) for transmitting the rotational torque generated by the tensile member (40) to a retractor shaft (24) to rotate the shaft (24) in a webbing-winding direction.
摘要:
A seat belt device includes a spindle 11 for retracting a seat belt 13, an electric actuator 55, a pre-tensioner 14 and a power transmission mechanism 20, wherein the power transmission mechanism 20 can reversibly switch the connection and disconnection between the electric actuator 55 and the spindle 11 before the pre-tensioner 14 is activated, while when the pre-tensioner 14 is activated, the power transmission mechanism 20 non-reversibly interrupts the connection between the electric actuator 55 and the spindle 11.
摘要:
A starting device (21, 121, 41) for actuating a gas generator (8) by striking a detonator (10) in response to an acceleration of a predetermined level or more. The starting device includes a firing pin (22), an inertial mass (23), an annular permanent magnet (24) and an erroneous-actuation preventing mechanism (9, 109, 42). The firing pin (22) is capable of igniting the detonator (10) by moving toward and colliding against the detonator (10). The inertial mass (23) is made of a cylindrical permanent magnet for supplying kinetic energy to the firing pin (22). The annular permanent magnet (24) has an inside diameter larger than an outside diameter of the inertial mass (23). The erroneous-actuation preventing mechanism (9,109, 42) prevents the erroneous actuation of the starting device (21, 121, 41). The erroneous-actuation preventing mechanism (9,109, 42) includes a restricting member for selectively setting the inertial mass (23) in a nonmovable state and in a movable state.