Abstract: A vehicle height adjusting apparatus for adjusting a height of a vehicle body of a vehicle is provided. The vehicle height adjusting apparatus includes an electric motor provided with a stator and a rotor and formed to have a structure in which a central portion thereof is penetrated; a screw nut fixed to the rotor of the electric motor and provided with a threaded portion on an inner peripheral surface thereof; a screw shaft inserted into and coupled to the inner peripheral surface of the screw nut and provided with a corresponding threaded portion having a shape corresponding to the threaded portion of the screw nut on an outer peripheral surface thereof; a guide portion configured to guide a relative movement between the screw nut and the screw shaft in a longitudinal direction.

Abstract: There is provided a suspension arm for a vehicle used in a suspension device of a vehicle. The suspension arm may include: a body portion constituting a basic body of the suspension arm; and a plurality of mounting portions configured to connect the suspension arm to a wheel-side member or a vehicle-body-side member. At least one of the plurality of mounting portions may be configured to include a bushing coupling portion and a fastening portion formed to extend from the bushing coupling portion to one side, such that the fastening portion may be coupled to a coupling portion provided on one side of the body portion in surface-contact with state.

Abstract: There is provided a method of manufacturing a suspension arm for a vehicle. The method includes a preform forming operation of forming a preform as a preliminary molding object for forming the suspension arm for a vehicle; and a main-molding-object forming operation of hot-pressing the preform to form a main molding object for forming the suspension arm for a vehicle. The preform formed in the preform forming operation may be formed in a shape corresponding to a shape of the main molding object, and may be formed in a shape offset inward from an outer shape of the main molding object by a predetermined dimension.

Abstract: There is provided method of manufacturing a knuckle for a vehicle. The method includes a preform forming operation of forming a preform serving as a preliminary molding object for forming the knuckle for a vehicle; and a main-molding-object forming operation of hot-pressing the preform to form a main molding object for forming the knuckle for a vehicle. The preform formed in the preform forming operation may be formed in a shape corresponding to a shape of the main molding object, and may be formed in a shape offset inward by a predetermined dimension from an outer shape of the main molding object.

Abstract: There is provided a vehicular suspension arm used for a suspension device of a vehicle. The vehicular suspension arm according to an embodiment of the present invention may comprise: a body portion constituting a basic body of the vehicular suspension arm; and a mounting portion formed in one end of the body portion and configured to connect the vehicular suspension arm to a wheel or a vehicle body of the vehicle, wherein the body portion may have a closed-box-section structure in which a hollow inner space is defined, and the closed-box-section structure may be configured such that the body portion is formed to integrally extend around the hollow inner space.

Abstract: According to one embodiment of the present disclosure, a vehicle knuckle used in a steering device of a vehicle is provided. The vehicle knuckle according to one embodiment of the present disclosure may comprise a knuckle body constituting a basic body of the vehicle knuckle; and one or more flanges formed on one side of the knuckle body and configured to be used to connect the knuckle to other components of the vehicle. According to one embodiment of the present disclosure, all or a portion of the knuckle body may comprise a closed-box-section structure in which a hollow space portion is defined, and the closed-box-section structure may be configured such that the knuckle body integrally encloses around the hollow space portion.

Abstract: A vehicular hybrid suspension arm includes a suspension arm body made of a steel material, and an insert molding inserted into and coupled to the suspension arm body, providing a suspension arm having reduced weight and high rigidity.

Abstract: A method for manufacturing a vehicle knuckle is provided. The method includes preparing a die for forming the vehicle knuckle, locating at least one busing in the die, filling the die with carbon chip materials, hot press forming the carbon chip materials filled in the die at high temperature and high pressure environment, separating the formed vehicle knuckle from the die, and trimming and removing surplus materials attached to the separated vehicle knuckle.

Abstract: A hybrid lower arm and a hybrid upper arm include an arm body made of a metal material, and an insert injection-molded integrally with the arm body so that the insert is inserted into an inside of the arm body. The arm body has a weight ratio of 50% or more and 90% or less with respect to the total weight of the hybrid lower arm or the hybrid upper arm, thus achieving the rigidity increase as well as the weight reduction in the lower arm and the upper arm of a suspension system.

Abstract: A vehicle height adjusting device which adjusts vehicle height between a vehicle body and a lower arm, may include a suspension spring provided between the vehicle body and the lower arm; a variable portion provided inside an internal diameter of the suspension spring, and whose length is variable by converting a rotary driving motion around an axial direction into an axial rectilinear motion; and a power portion which is provided on the vehicle body, and rotates the variable portion.

Abstract: A top mount assembly according to one aspect of the present disclosure may comprise: an insulator comprising an elastic body and disposed between a vehicle body and a strut; and a strut bearing comprising an upper housing comprising at least one hole through which a portion of the elastic body passes, a lower housing, and a bearing disposed between the upper housing and the lower housing. The elastic body may comprise an elastic protrusion protruding downwards from the hole. The lower housing may comprise a groove which extends along the circumferential direction such that the elastic protrusion is inserted into the groove and is positioned at the radial inner side of the bearing. The elastic protrusion is inserted into the groove to seal between the upper housing and the lower housing at the radial inner side of the bearing.

Abstract: A hybrid arm according to an embodiment of the present disclosure may include: a first body made of a metal material and formed with a plurality of end portions; a second body formed so as to fill an inner side of the first body by being insert-injection-molded to the first body; and a ball joint formed integrally at a first end portion among the plurality of end portions of the first body. The ball joint may include: a reinforcement member coupled to the first end portion; a bearing member formed with a space therein; a ball stud including a ball rotatably inserted into the space of the bearing member and a rod extending upward of the ball; and a housing interposed between the reinforcement member and the bearing member and formed integrally with the second body.

Abstract: According to one embodiment of the present disclosure, a vehicle knuckle is provided. The vehicle knuckle according to one embodiment of the present disclosure may comprise a knuckle body provided with a wheel bearing installation hole configured to install a wheel bearing, and flanges extending from the knuckle body and used to connect the vehicle knuckle to other parts of a vehicle. The knuckle body and the flanges may be integrally formed of carbon chip materials.

Abstract: A ball joint is disclosed. The ball joint comprises: a ball stud comprising a ball; a bearing supporting the ball of the ball stud by surrounding same; a case bushing accommodating the bearing and one portion of the ball stud; a ball joint mounting case made of carbon fiber reinforced plastic (CFRP), accommodating the case bushing and coupling to a suspension arm; and a case cap accommodated inside the case bushing.

Abstract: A hybrid lower arm and a hybrid upper arm include an arm body made of a metal material, and an insert injection-molded integrally with the arm body so that the insert is inserted into an inside of the arm body. The arm body has a weight ratio of 50% or more and 90% or less with respect to the total weight of the hybrid lower arm or the hybrid upper arm, thus achieving the rigidity increase as well as the weight reduction in the lower arm and the upper arm of a suspension system.

Abstract: A vehicular hybrid suspension arm includes a suspension arm body made of a steel material, and an insert molding inserted into and coupled to the suspension arm body, providing a suspension arm having reduced weight and high rigidity.

Abstract: There is provided a ball joint comprising a ball stud including a ball; a bearing configured to enclose and support the ball of the ball stud; a ball joint case configured to accommodate a portion of the ball stud and the bearing, the ball joint case being made of a plastic material; and a ball joint mounting case configured to accommodate the ball joint case and fastened to a suspension arm, wherein the ball joint mounting case is made of a carbon fiber-reinforced plastic (CFRP).

Abstract: A hybrid arm according to an embodiment of the present disclosure may include: a first body made of a metal material and formed with a plurality of end portions; a second body formed so as to fill an inner side of the first body by being insert-injection-molded to the first body; and a ball joint formed integrally at a first end portion among the plurality of end portions of the first body. The ball joint may include: a reinforcement member coupled to the first end portion; a bearing member formed with a space therein; a ball stud including a ball rotatably inserted into the space of the bearing member and a rod extending upward of the ball; and a housing interposed between the reinforcement member and the bearing member and formed integrally with the second body.

Abstract: The present disclosure relates to a hybrid lower arm including: a metal member including a plurality of end portions, one end portion of the plurality of end portions being connected to a ball joint and another end portion of the plurality of end portions being connected to a vehicular body; a face portion extending downwards along an edge of the metal member between the one end portion and the another end portion; and a guard member configured to surround a portion of the face portion and formed of a material lighter than the metal member.