SU648068A3

SU648068A3 - Method and apparatus for applying thread band onto type carcass

Info

Publication number: SU648068A3
Application number: SU742061095A
Authority: SU
Inventors: Жан Кент Питер; Эрик Филлипс Джон; Герберт Фаркьюхарсон Кент Жан
Original assignee: Кентреддер Лимитед (Фирма)
Priority date: 1973-09-07
Filing date: 1974-09-06
Publication date: 1979-02-15
Also published as: DE2442401A1; ATA717174A; NL7411855A; OA04774A; FR2243073B1; NL164800C; GB1460297A; NO743195L; DK467774A; AU7294874A; JPS5072977A; AT340789B; JPS5423956B2; CA1060614A; NL164800B; CH595209A5; BR7407453D0; DE2442401B2; IT1019212B; DE2442401C3

Description

рышки, изображенной на фиг. 4; на фиг. 6 - покрышка с протектором в виде сегментов.the caps shown in FIG. four; in fig. 6 - tire with tread in the form of segments.

Устройство дл осуществлени способа содержит приспособление дл удержани протектора 1 в виде формы 2 с кольцевой полостью, периметр которой соответствует периметру протектора в сжатом состо нии, и с расположенными по окружности параллельно ее продольной оси съемными стержн ми 3, взаимодействующими с каркасом 4 (фиг. 1, 2).The device for carrying out the method comprises a device for holding the tread 1 in the form of a form 2 with an annular cavity, the perimeter of which corresponds to the perimeter of the tread in a compressed state, and with removable rods 3 arranged circumferentially parallel to its longitudinal axis and interacting with the frame 4 (Fig. 1 , 2).

Способ осуществл етс следующим образом . ;The method is carried out as follows. ;

Предварительно свулканизованный протектор 1 с заданным рисунком изготавливают ,с контактирующей с каркасом 4 криволинейной поверхностью и длиной, большей периметра коронной части каркаса, нанос т на контактирующие поверхности св зующий состав и соедин ют протектор 1с каркасом 4 при оказании давлени на беговую поверхность протектора и сжатии последнего в продольном направлении на 0,5-10% от первоначальной длины.A pre-cured protector 1 with a given pattern is made with a curvilinear surface in contact with the carcass 4 and a length greater than the perimeter of the crown of the carcass, a binder is applied onto the contacting surfaces and the carcass 4 is pressed onto the running surface and the latter is compressed in the longitudinal direction by 0.5-10% of the original length.

Криволинейную поверхность протектора 1 выполн ют по радиусу R, меньшему, чем радиус Rt коронной части каркаса 4 (фиг. 4 и 5).The curved surface of the tread 1 is made along a radius R less than the radius Rt of the corona portion of the frame 4 (Fig. 4 and 5).

Перед соединением с каркасом 4 протектор } может быть сдублирован с брокером при оказании давлени на беговую поверхность протектора 1 и сжатии последнего в продольном направлении.Before connecting to the carcass 4, the protector} can be duplicated with a broker when applying pressure on the tread surface 1 and compressing the latter in the longitudinal direction.

Каркас 4, установленный в форме 2, образует складки а вокруг стержней 3 После съема стержней 3 (фиг. 3) складки а легко расправл ютс по форме 2 и протектор 1 плотно прилегает к каркасу 4.The frame 4, installed in the form 2, forms wrinkles and around the rods 3 After the removal of the rods 3 (Fig. 3), the wrinkles a easily unfold in form 2 and the tread 1 fits snugly to the frame 4.

Протектор 1 может быть изготовлен и в виде сегментов 5 (фиг. 6), образующих совместно сплошной протектор.The tread 1 can also be manufactured in the form of segments 5 (FIG. 6), which together form a continuous tread.

Изобретение позвол ет получать покрышки , имеющие большой срок службы го сравнению с покрышками, на каркас которых протектор накладывают традиционным способом .The invention allows to obtain tires having a long service life compared to tires, on the frame of which the protector is applied in the traditional way.

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Claims

1. A method of applying a tread to a tire carcass, including making a tread with a curved surface in contact with the carcass and a length greater than the perimeter of the crown of the carcass, applying a binder composition to the contacting surfaces and then connecting the tread to the carcass when applying pressure to the tread surface and compressing the latter in the longitudinal direction, characterized in that, in order to increase the service life of the tire, the tread is compressed by 0.5-10% of the original length.

2. A method according to claim I, characterized in that the curved tread surface is made along a radius smaller than the radius of the corona portion of the carcass.

3. The method according to claim 1, characterized in that, prior to joining with the carcass, the tread is duplicated with the breaker when applying pressure on the tread surface and the compression of the latter in the longitudinal direction ..

4. A device for applying a tread on the tire carcass, containing a device for holding the tread during application and creating pressure on it, characterized in that the device for holding the tread is made in a mold with an annular cavity, the perimeter of which corresponds to the perimeter of the tread In a compressed state, and with removable rods evenly spaced circumferentially parallel to its longitudinal axis and interacting with the frame.

Priority points: 09/07/73 on PP. 1-3. 11/22/73 on p. 4.

Sources of information taken into account in the examination

I. Patent of France No. 2152727, cl. At 29 N 5/00, 04/27/73.