Pneumatic tyre tread
专利摘要:
A tread for a pneumatic tire comprising two inner ribs extending in the circumferential direction of the tire and, to both sides thereof, tiers or block rows extending in the circumferential direction of the tire. The block rows and ribs are each separated from one another by a respective zig-zag configured circumferential groove. Each leg of the intermediate circumferential groove encloses, with the circumferential direction of the tire, an angle alpha of approximately 30 DEG to 50 DEG , whereas the legs of the lateral circumferential grooves enclose, with the circumferential direction of the tire, an angle beta of approximately 55 DEG to 65 DEG and the lateral circumferential grooves are each wider than the intermediate circumferential groove. 公开号:SU938736A3 申请号:SU792766957 申请日:1979-05-25 公开日:1982-06-23 发明作者:Ханке Вольфганг 申请人:Земперит Аг(Фирма); IPC主号:
专利说明:
(5) PNEUMATIC TIRE PROTECTOR This invention relates to a tire industry, in particular to the tread of a pneumatic tire for a vehicle. A pneumatic tire tread comprising two is known. internal rows and external rows of projections located on either side, each row is separated from other rows by circumferential zigzag grooves, and the protrusions in each row are separated from each other by transverse grooves, while the angles of inclination of the zigzag sections of these grooves with respect to the circumferential direction, the angles of inclination of the zigzag portions of the lateral circumferential zigzag grooves tl are smaller. In a known construction, the width of the middle and lateral circumferential zigzags of different grooves is the same. However, when rolling a tire of radial design, the specific pressure in the shoulder areas of the tire is greater than in the middle zone, therefore a different compaction of the soil occurs. This leads to a decrease in gi due to insufficient adhesion to the ground, since only the lateral grooves practically work, and to a lack of self-cleaning of the tread. The aim of the invention is to increase adhesion and improve self-cleaning. This goal is achieved by the fact that the width of the lateral circumferential zigzag grooves is greater than the width of the middle groove, and the first of these angles is 30-50, the second 55-60 °, and the projections of the inner rows consist of at least three forming zigzags contiguous plots. The width of the transverse grooves of the inner rows of protrusions is equal to the width of the middle (circumferential groove .; The drawing shows the tread of the pneumatic joint. The tread contains two inner rows 1 and 2 of the projections 3 and two outer rows and 5 protrusions 6. The inner rows 1 and 2 are separated from each other by the middle zigzag circumferential groove 7, and from the outer rows of k and S by side circumferential zigzag grooves 8 and 9; Protrusions 3 and 6 in each row 1, 2, and 5 are separated from each other by grooves 1.0 and 1, respectively , 1. The angles of inclination of the sections 12 zing zigzag groove 7. less than the angles of inclination p plots 13, forming the grooves 8 and 9 and are equal, respectively, and BZbO. The width of the lateral grooves 8 and 9 pain-15 ANGLES Above the width of the middle groove 7, the protrusions 3 rows 1 and 2 consist of at least three zigzag mating sections 1, 15 and 16. The width of the transverse grooves of the inner rows 1 and 2 is preferably equal to the width of the middle surrounding groove 7 When moving along the ground, especially snow, this performance increases the tire adhesion due to the formation of snow ribs on the road (due to the compression of snow in the transverse grooves) and uniform loading on the shift of the contact surface of the snow-covered road. Due to the choice of optimal angles of inclination and width of grooves pro938 other lateral grooves, while the angles of inclination of the sections of zigzags of the middle of these grooves relative to the circumferential direction are less circumferential zigzag grooves, characterized in that, in order to increase adhesion and improve self-cleaning, lateral circumferential zigzag grooves greater than the width of the mid-groove, and the first of the aforementioned angles is 30-50, the second 55-60, while the projections of the inner rows consist of, at least three zigzag conjugate regions. 2. The tread according to claim 1, about tl and the fact that the width of the transverse grooves is equal to the width of the middle circumferential groove. Sources of information taken into account in the examination 1. US patent No. 3512567, CL. 152-209, 1970. The vector of the protector is provided and good self-cleaning. Claim 1. Pneumatic tire tread containing two inner rows and outer rows of protrusions located on either side, each row is separated from the other rows by circumferential zigzag grooves, and the outcropping row is separated from each other by the slope of the folds
权利要求:
Claims (2) [1] Claim 1. The tread of the pneumatic tire, containing two inner rows and outer rows of protrusions located on both sides of them, each row is separated from the other rows by circumferential · zigzag grooves, and the protrusions in each row are separated from each other by transverse grooves, while the angles of inclination of the zigzag sections the average of these grooves relative to the circumferential direction is less than the tilt angles of the sections of the zigzags of the lateral circumferential zigzag grooves, characterized in that, in order to increase adhesion and improve self-cleaning, the width ina of the lateral circumferential zigzag grooves is greater than the width of the middle groove ,! and the first of the mentioned angles is 30-50, the second 55-60, while the protrusions of the inner rows consist of at least three zigzag mating sections. [2] 2. The tread according to claim. ^ Characterized in that the width of the transverse grooves is equal to the width of the middle circumferential groove.
类似技术:
公开号 | 公开日 | 专利标题 US4945966A|1990-08-07|Radial tire tread for heavy-duty road vehicles having platform depth maintained with wear US6003574A|1999-12-21|Motor-vehicle pneumatic tire having a tread pattern for snow covered road surfaces US4545415A|1985-10-08|Pneumatic tire tread US4446902A|1984-05-08|Tires for drive wheels of agricultural tractors or similar vehicles US4078596A|1978-03-14|Highly durable tread pattern of a rib type pneumatic tire US5109904A|1992-05-05|Snow tire US4131148A|1978-12-26|Pneumatic tire for agricultural and industrial vehicles CA1067380A|1979-12-04|Pneumatic tire EP0904960B1|2003-12-17|Studless tyre JP3001220B2|2000-01-24|Pneumatic tire US6220321B1|2001-04-24|Heavy duty tire including wide main grooves, narrow grooves and lug grooves US5058643A|1991-10-22|ATV tire with zig zag lugs US4351381A|1982-09-28|Tread for pneumatic tire US4977942A|1990-12-18|Pneumatic tire having defined lug groove configuration SU938736A3|1982-06-23|Pneumatic tyre tread KR20010089385A|2001-10-06|Tyre and tread thereof US6220324B1|2001-04-24|Vehicle tire having tread US4031938A|1977-06-28|Pneumatic tire tread US4765384A|1988-08-23|Pneumatic vehicle tire tread EP1093939B1|2005-09-07|An on/off road tread for a tire GB2229974A|1990-10-10|Tyre treads US4865099A|1989-09-12|Tire treads with variable depth grooves US5582661A|1996-12-10|Tread for pneumatic vehicle tires SU1284847A1|1987-01-23|Vehicle wheel tyre tread US4479525A|1984-10-30|Pneumatic tire tread
同族专利:
公开号 | 公开日 US4262720A|1981-04-21| CA1114728A|1981-12-22|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 CH270731A|1949-03-10|1950-09-15|Az Ceat Gomma Soc Per|Tread for pneumatic vehicle covers.| NL136547C|1968-03-04|Michelin & Cie|US4574857A|1984-11-05|1986-03-11|The Goodyear Tire & Rubber Company|Tractor tire tread| US4913208A|1988-01-21|1990-04-03|The Goodyear Tire & Rubber Company|Pneumatic radial-ply tire having block pattern tread| US5088536A|1990-05-10|1992-02-18|The Goodyear Tire & Rubber Company|All season type tire tread| US8844592B2|2010-11-15|2014-09-30|The Yokohama Rubber Co., Ltd.|Pneumatic tire| JP5018981B2|2010-11-15|2012-09-05|横浜ゴム株式会社|Pneumatic tire| USD788686S1|2010-11-15|2017-06-06|The Yokohama Rubber Co., Ltd.|Pneumatic tire|
法律状态:
优先权:
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申请号 | 申请日 | 专利标题 DE11501|1978-11-28| 相关专利
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