Suspension device
First Claim
1. A suspension device, comprising:
- an actuator including a motion conversion mechanism for converting a linear motion to a rotational motion and a motor connected to a rotary member which performs the rotational motion in the motion conversion mechanism;
a fluid pressure damper connected to a linear motion member which performs the linear motion in the motion conversion mechanism, said fluid pressure damper comprising a fluid pressure damper cylinder;
an outer cylinder connected to the actuator; and
a bearing attached to a rod or said pressure damper cylinder connected to the linear motion member of the fluid pressure damper, said bearing slidably contacting with an inner circumference of the outer cylinder, wherein a suspension spring is constituted by a spring juxtaposed to the fluid pressure damper and a spring juxtaposed to the actuator, and the bearing is interposed between the springs to serve also as a spring receiver.
2 Assignments
0 Petitions
Accused Products
Abstract
A suspension device (S) comprises: an actuator (A) including a motion conversion mechanism (T) for converting a linear motion to a rotational motion and a motor (M) connected to a rotary member (1) which performs the rotational motion in the motion conversion mechanism (T); a fluid pressure damper (D) connected to a linear motion member (2) which performs the linear motion in the motion conversion mechanism (T); an outer cylinder (27) connected to the actuator (A); and a bearing (34) attached to a rod (31) or a cylinder (32) connected to the linear motion member (2) of the fluid pressure damper (D) and slidably contacting with the inner circumference of the outer cylinder (27). This suspension device can improve reliability and vehicle ride quality.
33 Citations
20 Claims
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1. A suspension device, comprising:
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an actuator including a motion conversion mechanism for converting a linear motion to a rotational motion and a motor connected to a rotary member which performs the rotational motion in the motion conversion mechanism; a fluid pressure damper connected to a linear motion member which performs the linear motion in the motion conversion mechanism, said fluid pressure damper comprising a fluid pressure damper cylinder; an outer cylinder connected to the actuator; and a bearing attached to a rod or said pressure damper cylinder connected to the linear motion member of the fluid pressure damper, said bearing slidably contacting with an inner circumference of the outer cylinder, wherein a suspension spring is constituted by a spring juxtaposed to the fluid pressure damper and a spring juxtaposed to the actuator, and the bearing is interposed between the springs to serve also as a spring receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A suspension device, comprising:
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an actuator including a screw nut, a threaded shaft connected to said screw nut, a motor connected to said screw nut and a motion conversion means for converting a linear motion of said threaded shaft to a rotational motion; a fluid pressure damper; a rod connected to said fluid pressure damper, said rod being connected to said threaded shaft; an outer cylinder connected to the actuator; a bearing connected to said rod, said bearing being in sliding contact with an inner circumference of said outer cylinder, wherein said bearing engages said inner circumference of said outer cylinder; a suspension spring comprising a spring juxtaposed to the fluid pressure damper and a spring juxtaposed to the actuator, said bearing being interposed between the springs to serve also as a spring receiver. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A suspension device, comprising:
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a screw nut; a threaded shaft connected to said screw nut; an actuator including a motion conversion means for converting a linear motion of said threaded shaft to a rotational motion and a motor connected to said screw nut; a fluid pressure damper; a rod connected to said fluid pressure damper, said rod being connected to said threaded shaft; an outer cylinder connected to the actuator; a bearing connected to said rod, said bearing being in sliding contact with an inner circumference of said outer cylinder, wherein said bearing is in contact with said inner circumference of said outer cylinder and said bearing remains in contact with said inner circumference of said outer cylinder over a course of movement of said bearing; a holder comprising a holder interior space, said screw nut movably mounted in said holder interior space such that said screw nut is rotatable with respect to said holder, said threaded shaft being non-rotatable with respect to said holder. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification