Abstract: A torsion beam of a coupled torsion beam axle may include an external beam having a first cross-section in which an external protrusion of a middle end portion of the external beam is formed to protrude toward upward in a longitudinal direction of the external beam, and external skirt portions are vertically extended along the longitudinal direction at both end portions of the external protrusion; and an internal beam having a second cross-section in which an internal protrusion of a middle end portion in the internal beam is inserted into the external beam to face the external protrusion of the external beam, and internal skirt portions are extended in a vertical direction at both end portions of the internal protrusion, and each external surface of the internal skirt portions and each internal surface of the external skirt portions are surface-bonded in a mutually matched state.

Abstract: A torsion beam of a coupled torsion beam axle may include an external beam having a first cross-section in which an external protrusion of a middle end portion of the external beam is formed to protrude toward upward in a longitudinal direction of the external beam, and external skirt portions are vertically extended along the longitudinal direction at both end portions of the external protrusion; and an internal beam having a second cross-section in which an internal protrusion of a middle end portion in the internal beam is inserted into the external beam to face the external protrusion of the external beam, and internal skirt portions are extended in a vertical direction at both end portions of the internal protrusion, and each external surface of the internal skirt portions and each internal surface of the external skirt portions are surface-bonded in a mutually matched state.

Abstract: A vibration-sensitive suspension system may include a damping-force varying shock absorber, a detecting device detecting an acceleration signal, a storing device extracting a natural frequency from an excitation test of a vehicle, and storing the extracted natural frequency, and an ECU receiving the acceleration signal from the detecting device, extracting a frequency signal, and determining whether the extracted frequency matches the natural frequency, thus regulating a damping force of the shock absorber.

Abstract: Disclosed herein is an injection molding apparatus. That apparatus includes an axially extending bar shaped support bar and an inner mold that has a plurality of internal parts surrounding the support bar and is axially divided into a plurality of parts in which one or more corresponding parts in the inner parts have an inner circumferential surface width the same or larger than an outer circumferential surface width. The apparatus further includes an outer mold that has a plurality of axially divided external parts surrounding the inner mold and has a space between the inner circumferential surface of the outer mold and the outer circumferential surface of the inner mold.

Abstract: A mount bushing of a stabilizer bar for a vehicle includes an insert adapted to be directly molded to a predetermined position of the stabilizer bar, a sliding bearing comprising a pair of bearings and adapted to be coupled to an exterior circumference of the insert, a lubrication layer being formed between the insert and the sliding bearing, a rubber bushing comprising upper and lower rubber members and adapted to be coupled to the sliding bearing such that the rubber bushing encloses an exterior circumference of the sliding bearing, a bracket adapted to enclose the rubber bushing and to be fixed to a vehicle body, and first and second sealing means adapted to prevent foreign materials from flowing into the rubber bushing and to prevent grease in the rubber bushing from flowing out.

Abstract: Disclosed herein is an injection molding apparatus. That apparatus includes an axially extending bar shaped support bar and an inner mold that has a plurality of internal parts surrounding the support bar and is axially divided into a plurality of parts in which one or more corresponding parts in the inner parts have an inner circumferential surface width the same or larger than an outer circumferential surface width. The apparatus further includes an outer mold that has a plurality of axially divided external parts surrounding the inner mold and has a space between the inner circumferential surface of the outer mold and the outer circumferential surface of the inner mold.

Abstract: A torsion beam for a suspension in a vehicle and a body member defining an outer shape is made of carbon fiber reinforcing plastic that is an advanced composite, so the weight can be reduced, and thus the torsion beam can be used for environment-friendly vehicles.

Abstract: A mount bushing of a stabilizer bar for a vehicle includes an insert adapted to be directly molded to a predetermined position of the stabilizer bar, a sliding bearing comprising a pair of bearings and adapted to be coupled to an exterior circumference of the insert, a lubrication layer being formed between the insert and the sliding bearing, a rubber bushing comprising upper and lower rubber members and adapted to be coupled to the sliding bearing such that the rubber bushing encloses an exterior circumference of the sliding bearing, a bracket adapted to enclose the rubber bushing and to be fixed to a vehicle body, and first and second sealing means adapted to prevent foreign materials from flowing into the rubber bushing and to prevent grease in the rubber bushing from flowing out.

Abstract: A low-friction bush for a vehicle may include an inner pipe having a spherical portion being convex toward the outside, a bearing seat configured to be in rolling contact with an outer surface of the spherical portion of the inner pipe, wherein each entrance of the bearing seat may be spaced from the spherical portion of the inner pipe, a sealing member sealingly mounted between each end of the inner pipe and the entrance of the bearing seat, a plastic housing integrally injection-molded on an outer surface of the bearing seat and an outer surface of the sealing member, an outer pipe spaced from an outer circumference of the plastic housing, and a vibration-proof rubber filled in a space between the outer pipe and the plastic housing to integrate the outer pipe and the plastic housing.

Abstract: A sub-frame mount for a suspension may include a frame structure having an upper plate and a lower plate, a front mounting portion provided at a front portion of the frame structure, and connected to a vehicle body through a first mount bolt, and a rear mounting portion provided at a rear portion of the frame structure, and connected to the vehicle body through a second mount bolt, wherein the respective rear mounting portion includes, a first hole formed at the upper plate, a second hole corresponding to the first hole and formed at the lower plate, width of the second hole corresponding approximately to the width of the body of the second mount bolt, and a third hole connected to the second hole so that a head of the second mount bolt can pass through the third hole.

Abstract: A sub-frame mount for a suspension may include a frame structure having an upper plate and a lower plate, a front mounting portion provided at a front portion of the frame structure, and connected to a vehicle body through a first mount bolt, and a rear mounting portion provided at a rear portion of the frame structure, and connected to the vehicle body through a second mount bolt, wherein the respective rear mounting portion includes, a first hole formed at the upper plate, a second hole corresponding to the first hole and formed at the lower plate, width of the second hole corresponding approximately to the width of the body of the second mount bolt, and a third hole connected to the second hole so that a head of the second mount bolt can pass through the third hole.