METHOD FOR MANUFACTURING HYBRID SUSPENSION ARM FOR VEHICLE USING FIXING PIN AND HYBRID SUSPENSION ARM MANUFACTURED BY USING SAME

WIPO Patent Application WO/2019/066562

A1

The present disclosure relates to a method for manufacturing a hybrid suspension arm for a vehicle and a hybrid suspension arm manufactured by using the same. The method for manufacturing a hybrid suspension arm may comprise the steps of: preparing an assembly of a ball stud and a bearing; preparing a suspension arm body; attaching a ball joint pipe and a bush pipe to the suspension arm body; inserting the assembly of the ball stud and the bearing into the ball joint pipe to produce a suspension arm main body; inserting the suspension arm main body into a mold having a plurality of fixing pins formed therein; injecting an insert molding in the direction of an upper surface of the ball joint pipe through a mold into a ball joint portion including the ball joint pipe and the ball stud; and inserting the bush into the bush pipe so as to be assembled. When the suspension arm main body is inserted into the mold, the fixing pin is positioned adjacent to the ball joint portion so that a lower surface of the ball joint pipe is fixed when the insert molding is injected. In this method, by forming the fixing pin on the mold, it is possible to prevent the ball joint portion from flexing deformation without forming a spike shape, and also to prevent rusting due to damage of a painted surface which occurs when the spike shape is used.

KWON TAE SUNG (KR)

PCT/KR2018/011544

April 04, 2019

September 28, 2018

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ILJIN CO LTD (KR)

B60G7/00; B29C45/14

KR101747336B1	2017-06-14
JP3127764B2	2001-01-29
KR20170086372A	2017-07-26
KR20090122978A	2009-12-01
KR101393849B1	2014-05-12

See also references of EP 3689645A4

YANG, Young June (KR)

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