Belt bias tire structure

The structure of the tire is divided into two categories: skew and meridian. Currently, the meridian structure is the mainstream, which is well known.
However, few people know that in addition to the above two types of tire structures, there have been tires of the third type of structure, namely “beltedbiastyre”, which is also known as “semi-meridian tire” because The carcass is a skewed structure, and the same as the bias tire. However, the carcass layer is hooped with a belt layer, which is the same as the radial tire. It can be said to be a hybrid structure. The figure below shows the three structures of the tire.
The belt bias tires once occupied some markets in the United States in the 1960s and 1970s. At that time, several American big tire companies had advocated and put the product on the market. At the beginning, because its performance is better than the bias tire, it has also been welcomed by users, and the real reason is the following two points:

1 The manufacturing equipment (special molding equipment) of radial tires and the equipment of the bias tires are very different and cannot be used universally. To produce radial tires, a lot of money must be invested to replace the equipment, and the old equipment that has been replaced becomes a pile of scrap iron.

Three types of rubber tires

2 The United States has always been a leader in tire manufacturing technology. The implementation of the meridianization is tantamount to self-identification as others (because the radial tires are first introduced in Europe), and they can’t get through. Therefore, the power icon is new and not unique.

Because of the incompatibility of radial tires in various aspects, the belt has been out of the historical stage for more than 20 years and has become a historical term. However, from the perspective of respecting historical facts, it should be recorded.