Rubber crawler belt having metal cores and arcuate lugs
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62D-055/24
출원번호
US-0514036
(2003-05-13)
등록번호
US-7469976
(2008-12-30)
우선권정보
JP-2002-138244(2002-05-14)
국제출원번호
PCT/JP03/005950
(2003-05-13)
§371/§102 date
20041215
(20041215)
국제공개번호
WO03/095292
(2003-11-20)
발명자
/ 주소
Nishimura,Naoki
출원인 / 주소
Bridgestone Corporation
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
1인용 특허 :
14
초록▼
The object of the present invention is to provide a rubber crawler in which a shape of the central lug viewed from a lateral side of the rubber crawler is approximately in the form an arc. Therefore, at a time of driving of the rubber crawler repeating back and forth movement, even if a large resist
The object of the present invention is to provide a rubber crawler in which a shape of the central lug viewed from a lateral side of the rubber crawler is approximately in the form an arc. Therefore, at a time of driving of the rubber crawler repeating back and forth movement, even if a large resisting force from the road surface due to an impediment, such as gravel, is subjected to the central lug particularly disposed close to a sprocket engagement section, the resisting force can be parried for dispersion to a suitable degree by such arrangement, so that there is no possibility of early peel occurring in the central lug or such peeling is prevented from extending to tread members connected thereto; thus, the life is prolonged.
대표청구항▼
What is claimed is: 1. A rubber crawler comprising: a main body, a plurality of longitudinally spaced metal cores embedded in a width direction of the main body, sprocket engagement holes perforated between the metal cores, two rows of longitudinally spaced tread members disposed on the left and ri
What is claimed is: 1. A rubber crawler comprising: a main body, a plurality of longitudinally spaced metal cores embedded in a width direction of the main body, sprocket engagement holes perforated between the metal cores, two rows of longitudinally spaced tread members disposed on the left and right side of an outer peripheral grounding surface of the rubber crawler, and a plurality of central lugs arranged between the tread members for binding the tread members, the metal cores being embedded respectively in the central lugs, such that the metal cores are partially encircled by the central lugs, wherein a shape of the central lugs viewed from a lateral side of the rubber crawler is approximately in the form of an arc, the arc being projected to have a convexity in a direction of the outer peripheral grounding surface, and wherein at least a portion extending along the arc has a constant radius when measured from a centerline of the respective central lugs. 2. The rubber crawler as defined in claim 1, wherein the arc is configured such that a center of a circle corresponding to the arc is located in a surface on a ground contacting side of the core. 3. The rubber crawler as defined in claim 2, wherein the central lugs are positioned inside of the tread members and near a rear surface of the tread members with respect to the running direction of the rubber crawler. 4. The rubber crawler as defined in claim 1, wherein the central lugs are positioned inside of the tread members and near a rear surface of the tread members with respect to the running direction of the rubber crawler. 5. The rubber crawler as defined in claim 1, wherein the cores include a flat portion which faces towards the arc. 6. The rubber crawler as defined in claim 1, wherein a portion of the central lugs that are occupied by the cores is opposite the arc. 7. The rubber crawler as defined in claim 1, wherein the cores are symmetrical with respect to the arc. 8. The rubber crawler as defined in claim 1, further including reinforcing elements which extend in the first and second longitudinal directions of the crawler. 9. The rubber crawler as defined in claim 1, wherein an inner peripheral side of the cores partially comes out of the central lugs. 10. A rubber crawler comprising: a main body, a plurality of longitudinally spaced metal cores embedded in a width direction of the main body, sprocket engagement holes perforated between the metal cores, two rows of longitudinally spaced tread members disposed on the left and right side of an outer peripheral grounding surface of the rubber crawler, and a plurality of central lugs arranged between the tread members for binding the tread members, the metal cores being embedded respectively in the central lugs, such that the metal cores are partially encircled by the central lugs, wherein a shape of the central lugs viewed from a lateral side of the rubber crawler is approximately in the form of an arc, the arc being projected to have a convexity in a direction of the outer peripheral grounding surface, and wherein the arc corresponds to a circle having its center along a centerline of the central lugs.
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이 특허에 인용된 특허 (14)
Courtemanche Denis (Richmond CAX), Clip for snowmobile track and snowmobile track provided with the same.
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