摘要:
A shock absorber body 30 which makes telescopic motion in response to an input from outside has a ball screw mechanism 16 which converts the telescopic motion into rotary motion and comprises a ball nut 17 and a screw shaft 18. A motor 32 is provided coaxially with the shock absorber body 30. The motor 32 generates electromagnetic resistance to oppose against the rotary motion which inputs into a rotary shaft 6 of the motor 32. The screw shaft 18 and the rotary shaft 6 are formed as one united shaft member. Damping force which opposes against the telescopic motion of the shock absorber body 30 is generated according to electromagnetic force of the motor 32.
摘要:
A shock absorber body 30 which makes telescopic motion in response to an input from outside has a ball screw mechanism 16 which converts the telescopic motion into rotary motion and is composed of a ball nut 17 and a screw shaft 18. A motor 32 is provided coaxially with the shock absorber body 30. The motor 32 generates electromagnetic resistance to oppose against the rotary motion which inputs into a rotary shaft 6 of the motor 32. A cylindrical member 1 or 23 which covers the shock absorber body 30 and the motor 32 from outside and whose part covering the motor 30 also serves as a motor frame is provided. Damping force which opposes against the telescopic motion of the shock absorber body 30 is generated according to electromagnetic force of the motor 32.
摘要:
A damping force generating valve of a hydraulic shock absorber is provided with: a piston portion (6) in a hydraulic shock absorber; an extension side port and a pressure side port drilled in the piston portion (6); and a plurality of leaf valves (5a,5b,12, and 15) which are seated so at to be capable of opening and closing one of the extension side port and the pressure side port, which are disposed in the piston portion (6) in a stacked state, and which are fixed to an inner circumferential side. At least one leaf valve (12) of the plurality of leaf valves (5a,5b,12, and 15) has a thin sheet valve body (19) and a thick portion (16) provided along a circumferential direction in an intermediate portion of the thin sheet valve body (19), or in an outer edge side of the thin sheet valve body (19), contacting adjacent leaf valves (5a and 15). The leaf valve (12) is structured by providing the thick portion (16) along the circumferential direction in the intermediate portion of the thin sheet valve body (19), or in the outer edge side of the thin sheet valve body (19).
摘要:
A power steering system capable of preventing an unnecessary standby flow produced in high speed travel. A controller C determines a basic current instruction value Id based on a current instruction value I1 in accordance with a steering angle detected by a steering angle sensor 14, a current instruction value I2 in accordance with a steering angular velocity and current instruction values I5, I6 in accordance with a vehicle speed, and adds a standby current instruction value Is to the basic current instruction value Id, and outputs the resultant value of the addition as a solenoid current instruction value SI, and changes the standby current instruction value Is on the basis of the vehicle speed.
摘要:
An inner tube (2) connected to a vehicle body is inserted such that it is free to extend and contract in an outer tube (1) joined to a vehicle shaft. A partitioning member (3) which divides an internal oil chamber at the end of the inner tube is provided, a damping valve (4) and a bypass passage (3d) parallel to this damping valve (4) are disposed in this partitioning member (3), a control rod (5) which opens and closes the bypass passage (3d) is provided, and an actuator (20) which controls this control rod (5) is provided in the inner tube (2). By operating the control rod (5) via the actuator (20) to open/close the bypass passage (3d), the damping force generated is varied.
摘要:
Spring characteristics are switched in response to running conditions or use requirements of a bicycle in order to improve riding comfort and vehicle performance. A rod 2 is connected to a piston 3 which slides in a cylinder 1, a piston-side chamber (A) and a rod-side chamber (B) are partitioned in the cylinder 1 by the piston 3 and compressed air fills the two chambers,a passage 4 which connects the two chambers is opened and closed by a switch valve 5, the cylinder 1 is connected to the vehicle wheels and the piston rod 2 is connected to the vehicle body, the piston 3 displaces in response to vibration applied to the vehicle body in order to absorb vibrations.
摘要:
A power steering system with which no deterioration in steering feeling occurs when a control flow of working fluid changes. A valve mechanism V is made up of a power cylinder control valve CV for controlling a control flow Q and distributively supplying it to a power cylinder C and a bypass control valve BV connected in parallel with the cylinder control valve CV. The bypass control valve BV is normally closed, but while the control flow Q is increasing over a range of from a minimum flow Q 1 to a maximum flow Q 2 available for generating assist force the bypass control valve opens and returns a part of the control flow Q to a tank so that the pressure difference between the pressure chambers of the power cylinder C rises gently and the driver does not experience a disconcerting feeling such as one of the steering wheel suddenly being taken over.