Spring devices – Vehicle – Bolster
Patent
1984-12-14
1987-06-16
Caldwell, Sr., John W.
Spring devices
Vehicle
Bolster
188299, 267 6422, 267 6424, B60G 1300, F16F 900
Patent
active
046731717
ABSTRACT:
An air suspension comprises a shock absorber having a piston rod in which a control rod for adjusting damping force is disposed, an air spring having a main air chamber and an auxiliary air chamber, a valve body for affording and shutting off communication between both air chambers to adjust the spring constant of the air spring, a support connected to a car body and including a rigid member with which the piston rod is coupled and in which the valve body is disposed and a bushing disposed diametrically outward of the rigid member and having a hole opened to the auxiliary air chamber and an actuator fixed to the piston rod above the support to operate the control rod and valve body. The actuator is provided with an electric motor, a gear fixed to the motor and a pair of rods arranged parallel to each other and extending toward the rigid member of the support, one of the rods being connected to the control rod and the other rod being connected to the valve body respectively. Each rod is coupled through a pin with a tube supported rotatably by a bracket. Gears are fixed to the respective tubes to mesh with the gears.
REFERENCES:
patent: 3046000 (1962-07-01), Polhemus et al.
patent: 3218055 (1965-11-01), Nallinger
patent: 4313529 (1982-02-01), Kato et al.
patent: 4364582 (1982-12-01), Takahashi et al.
patent: 4468739 (1984-08-01), Woods et al.
patent: 4534580 (1985-08-01), Kobayashi et al.
patent: 4592540 (1986-06-01), Yokoya et al.
Caldwell Sr. John W.
Oberley Alvin
Toyota Jidosha & Kabushiki Kaisha
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