Some time ago, we summarized sometireSome introductions, includingtireWhat do the numbers above mean, misunderstandings in choosing tires, etc. (If you are interested, you can search our previous article) Let’s summarize the functions of each part of the tire today:
Tread:This is the part where the tire is in direct contact with the ground. Due to different road conditions and different needs, patterns of different shapes must be selected. It has the function of protecting the carcass, and it is also the part where the tire is used the most and has the largest loss. It provides driving , Traction, braking, drainage, anti-skid, shock absorption, steering and other functions. The tread includes the center part and the shoulder part.
Sidewall (sidewall, sidewall):Although this part is not in contact with the ground, it has the function of absorbing the impact of the ground and protecting the steel wire or fiber layer in the carcass. The size, model and name of the manufacturer are all floating in this part.
Carcass (CARCASS):This is the main skeleton of the tire, which can withstand very large impact forces, such as the bearing pressure of the tire, internal air pressure and lateral shear. It is made of man-made fibers after being glued and interwoven into the rubber, after heating treatment and stretching, and then cut according to the required size, rolled and pasted on the outside of the "tire inner layer" to form a carcass. part.
Buffer layer (BREAKER):It is the "line layer" between the tread and the carcass to withstand the impact from the outside, and to ease it, once the tread is cracked or cut, it will not directly damage the carcass, and it can prevent the tread and the carcass from directly hurting the carcass. The role of carcass separation.
Cover (CAP):Only the buffer layer in the tire is in contact with the ground in the circumferential direction, but the cover is extended from the tread and bent along the sidewall of the sidewall to wrap the tire.
Belt (BELT):The endless belt layer is deeply implanted between the tread and the carcass and extends in the circumferential direction. It has a high-tension reinforcing belt and acts as a buffer layer, which tightly buckles the carcass and improves the strength of the tread.
Bead (BEED):The part where the inner edge of the tire is in contact with the steel ring is responsible for fixing the tire on the steel ring, with built-in high-tension bundled steel wires to tightly buckle the steel ring.
BEED FILLER:In order to strengthen the tension strength of the bead lip, a gap is naturally left on the outside of the annulus, which cushions the expansion of the annulus, and the structural strength of the hollow is greater than that of the solid one.
Inner cover:It is used to protect the bead and strengthen the edge of the tire, which can effectively help the bead to be fixed on the rim.
Airtight glue:withoutInner tubeThe wheel has a layer of airtight rubber inside to prevent the leakage of high-pressure air, keep the tire and the steel rim close at any time, and if there is a small hole in the tire, the leakage can still be minimized.
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