KR102478923B1 - 랩드 v 벨트 - Google Patents
랩드 v 벨트 Download PDFInfo
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- KR102478923B1 KR102478923B1 KR1020207033371A KR20207033371A KR102478923B1 KR 102478923 B1 KR102478923 B1 KR 102478923B1 KR 1020207033371 A KR1020207033371 A KR 1020207033371A KR 20207033371 A KR20207033371 A KR 20207033371A KR 102478923 B1 KR102478923 B1 KR 102478923B1
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- rubber layer
- rubber
- belt
- layer
- compression
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Abstract
Description
[도2] 도2는, 본 발명의 랩드 V 벨트의 일례의 개략 단면도이다.
[도3] 도3은, 본 발명의 랩드 V 벨트의 다른 예의 개략 단면도이다.
[도4] 도4는, 실시 예에서의 마찰 계수의 측정 방법을 설명하기 위한 개략도이다.
[도5] 도5는, 실시 예 및 비교 예에서 얻어진 JIS B형의 랩드 V 벨트의 주행 시험을 설명하기 위한 개략도이다.
[도6] 도6은, 실시 예 및 비교 예에서 얻어진 JIS C형의 랩드 V 벨트의 주행 시험을 설명하기 위한 개략도이다.
[도7] 도7은, 실시 예 및 비교 예에서 얻어진 JIS B형의 랩드 V 벨트의 내전복성 결과를 나타내는 그래프이다.
[도8] 도8은, 실시 예 및 비교 예에서 얻어진 JIS C형의 랩드 V 벨트의 내전복성의 결과를 나타내는 그래프이다.
2, 12 … 신장 고무층
3, 13 … 심체
4, 14 … 심체층(접착 고무층)
5a, 15a … 제1 압축 고무층
5b, 15b … 제2 압축 고무층
6, 16 … 외피포
17 … 보강포층
Claims (7)
- 심체를 포함하는 심체층과, 이 심체층의 벨트 외주 측에 적층된 신장 고무층과, 상기 심체층의 벨트 내주 측에 적층된 압축 고무층과, 벨트 외표면의 전면을 피복하는 외피포를 포함하는 랩드 V 벨트에 있어서,
상기 압축 고무층이 벨트 외주 측에 적층된 제1 압축 고무층과, 벨트 내주 측에 적층된 제2 압축 고무층을 포함하고,
상기 신장 고무층의 고무 경도가 상기 제2 압축 고무층의 고무 경도보다 높고, 상기 제1 압축 고무층의 고무 경도보다 낮은, 랩드 V 벨트. - 제1항에 있어서,
상기 제1 압축 고무층의 평균 두께가, 상기 압축 고무층 전체의 평균 두께에 대하여 90~50%인, 랩드 V 벨트. - 제1항에 있어서,
상기 신장 고무층의 고무 경도 Hs(JIS A)가 85~90°, 상기 제1 압축 고무층의 고무 경도 Hs(JIS A)가 90~95°, 상기 제2 압축 고무층의 고무 경도 Hs(JIS A)가 72~80°의 범위 내이고, 상기 제1 압축 고무층과 상기 제2 압축 고무층과의 상기 고무 경도 Hs(JIS A)의 차가 12~21°, 상기 제1 압축 고무층과 상기 신장 고무층과의 상기 고무 경도 Hs(JIS A)의 차가 3~10°인, 랩드 V 벨트. - 제1항에 있어서,
상기 제1 압축 고무층과 상기 신장 고무층과의 고무 경도 Hs(JIS A)의 차가 3~5°인, 랩드 V 벨트. - 제1항에 있어서,
상기 신장 고무층의 JIS K6251 (1993)에 준거한 벨트 폭 방향에 있어서의 인장 탄성률(모듈러스)이 17~28MPa, 상기 제1 압축 고무층의 JIS K6251 (1993)에 준거한 벨트 폭 방향에 있어서의 인장 탄성률(모듈러스)이 30~40MPa, 상기 제2 압축 고무층의 JIS K6251 (1993)에 준거한 벨트 폭 방향에 있어서의 인장 탄성률 (모듈러스)이 13~18MPa인, 랩드 V 벨트. - 제1항에 있어서,
전동면인 외피포의 마찰 계수가 0.91~0.96인, 랩드 V 벨트. - 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 압축 고무층의 내주 측의 표면과, 외피포와의 사이에 보강포층이 개재하는, 랩드 V 벨트.
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