Hybrid arm and method of manufacturing same
First Claim
1. A hybrid arm comprising:
- 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,wherein the ball joint comprises;
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 by insert-injection-molding molten plastic,wherein the first body and the second body have the shape of “
λ
”
,wherein an opening is formed at a lower end of the reinforcement member,wherein a concave portion is formed in an inner circumferential surface of the reinforcement member along a circumferential direction,wherein the housing includes a protrusion that is formed within the concave portion such that the molten plastic is inserted into and solidified in the opening of the reinforcement member and the concave portion during insert-injection-molding, andwherein the housing supports an outer circumferential surface of the bearing member and surrounds the inner circumferential surface, the lower end and an outer circumferential surface of the reinforcement member.
1 Assignment
0 Petitions
Accused Products
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.
22 Citations
12 Claims
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1. A hybrid arm comprising:
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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, wherein the ball joint comprises; 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 by insert-injection-molding molten plastic, wherein the first body and the second body have the shape of “
λ
”
,wherein an opening is formed at a lower end of the reinforcement member, wherein a concave portion is formed in an inner circumferential surface of the reinforcement member along a circumferential direction, wherein the housing includes a protrusion that is formed within the concave portion such that the molten plastic is inserted into and solidified in the opening of the reinforcement member and the concave portion during insert-injection-molding, and wherein the housing supports an outer circumferential surface of the bearing member and surrounds the inner circumferential surface, the lower end and an outer circumferential surface of the reinforcement member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of manufacturing a hybrid arm which includes a first body made of a metal material and formed with a plurality of end portions, a second body formed to fill an inner side of 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 method comprising:
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forming the first body by processing a metal plate material; coupling a reinforcement member to the first end portion of the first body; fixing a rod of a ball stud such that an outer circumferential surface of a bearing member is spaced apart from an inner circumferential surface of the reinforcement member; and insert-injection-molding the second body and a housing of the ball joint to the first body, wherein the first body and the second body have the shape of “
λ
”
,wherein an opening is formed at a lower end of the reinforcement member, wherein a concave portion is formed in an inner circumferential surface of the reinforcement member along a circumferential direction, wherein during insert-injection-molding, the housing is interposed between the reinforcement member and the bearing member and is formed integrally with the second body by molten plastic, wherein, during insert-injection-molding, the molten plastic is inserted into and solidified in the opening of the reinforcement member and the concave portion, and wherein the housing supports an outer circumferential surface of the bearing member and surrounds the inner circumferential surface, the lower end and an outer circumferential surface of the reinforcement member. - View Dependent Claims (11, 12)
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Specification