KR960003944A

KR960003944A - Manufacturing method of pneumatic radial tire for car

Info

Publication number: KR960003944A
Application number: KR1019940018023A
Authority: KR
Inventors: 김문배
Original assignee: 홍건희; 한국타이어제조 주식회사
Priority date: 1994-07-26
Filing date: 1994-07-26
Publication date: 1996-02-23

Abstract

본 발명은 카카스코드를 덮는 상층부와 하층부의 고무두께를 달리하고, 상, 하층부의 재질을 달리하여 접착성을 향상시키므로서 다른 고무를 사용하여 카카스부위에 발생되는 응력의 집중을 완화하도록 한 자동차용 공기입래디알 타이어 제조방법에 관한 것으로, 단일 카카스코드(13)의 상층부(11)와 하층부(12) 고무 두께를 이원화하므로서, 카카스코드(13)의 상층부(11)와 하층부(12) 및 카카스(10)와 비드부(20) 사이의 접착성을 향상시키고, 따라서 응력의 집중이 완화하게 되며, 상기와 같이 상,하층부(12)의 고무 조성물을 이원화하여 카카스코드(13)의 상층부(11)와 하층부(12)사이, 카카스(10)와 카카스 사이 및 카카스와 비드부(20) 사이 접착면 박리현상을 억제하는 것이다.The present invention is to change the rubber thickness of the upper layer and the lower layer covering the carcass cord, and to improve the adhesiveness by changing the material of the upper and lower layers to reduce the concentration of stress generated in the carcass portion by using different rubber. The present invention relates to a pneumatic radial tire manufacturing method for automobiles, wherein the upper layer portion 11 and the lower layer portion 12 rubber thickness of a single carcass cord 13 are dualized, so that the upper layer portion 11 and the lower layer portion of the carcass cord 13 ( 12) and improves the adhesiveness between the carcass 10 and the bead portion 20, and thus the concentration of stress is alleviated, and as described above, the rubber composition of the upper and lower layer portions 12 is dualized and the carcass cord ( It is to suppress the adhesive surface peeling phenomenon between the upper layer portion 11 and the lower layer portion 12, between the carcass 10 and the carcass, and between the carcass and the bead portion 20 of 13).

Description

Manufacturing method of pneumatic radial tire for car

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 전체단면도,1 is a cross-sectional view of the present invention,

제2도는 본 발명의 요부단면도,2 is a sectional view of main parts of the present invention;

제3도는 본 발명의 요부단면도.3 is a cross-sectional view of main parts of the present invention.

Claims

In the case where the carcass 10 is arranged without a junction in the radial direction from the tread portion, the thickness of the upper layer portion 11 and the lower layer portion 12 of the carcass cord 13 is dualized. A method for manufacturing pneumatic radial tires for automobiles, characterized in that it is configured to improve the adhesion between the upper layer portion (11) and the lower layer portion (12) and the carcass (10) and the bead portion (20) to suppress peeling.

The method of claim 1, wherein the material of the upper layer portion 11 and the lower layer portion 12 of the carcass cord 13 is dualized to improve the adhesion between the carcass 10 and the carcass 10 to suppress stress concentration. A pneumatic radial tire manufacturing method for automobiles, characterized in that it is configured to suppress the peeling phenomenon.

According to claim 1 or 2, wherein the upper layer 11 is N ₂ SA value of 50 to 20 to 60 parts by weight of rubber copolymerized with styrene (STYRNEN) and butadiene relative to 40 to 80 parts by weight of natural rubber A pneumatic radial tire manufacturing method for automobiles, comprising a rubber composition comprising 30 to 80 parts by weight of carbon black having -120 m 2 / g and a DBP oil absorption of 50 to 120 ml / 100 g.

According to claim 1 or 2, wherein the lower layer 12 is 20 to 60 parts by weight of N ₂ SA value of 20 to 60 parts by weight of styrene (STYRNEN) and butadiene (BUTADINEN) relative to 40 to 80 parts by weight of natural rubber A method for producing pneumatic radial tires for automobiles, comprising a rubber composition containing -80 m 2 / g and 30-80 parts by weight of carbon black having a DBP oil absorption of 60-100 ml / 100 g.

※ Note: The disclosure is based on the initial application.