CN2299737Y - Motorcycle safety tire with improved structure - Google Patents

Abstract

The utility model relates to a locomotive safety tire, including waterproof airtight glue film, nylon curtain layer, steel wire curtain layer and rubber cortex. The nylon curtain layer is formed by overlapping two nylon net layers which are laid in a relatively inclined mode, and the steel wire curtain layer is formed by alternately laying two inclined steel wire net layers in a relatively inclined mode. The waterproof and air-tight rubber layer, the nylon, the steel wire curtain layer and the rubber layer are laid, wrapped and fixed layer by layer from inside to outside, and the outer layer of the tire tread is formed after vulcanization and heating. The steel wire curtain layer can restore to the original shape after the penetrated foreign bodies are removed, the gas leakage speed is reduced, the tread friction force can be enhanced by the tightening force of the steel wire curtain layer, the starting skid is prevented, the wear resistance is improved, and the like.

Description

Motorcycle safety tire with improved structure

The utility model relates to a vehicle tire, which is a locomotive safety tire.

For general motorcycle tires, the innermost waterproof and airtight rubber layer of the carcass is fixed with a nylon curtain layer, and then directly enters the vulcanization process to form a brand new tire. After the tire formed with nylon curtain layer is rolled by the weight of the fuselage, the originally tight nylon curtain layer will expand, which will weaken the grip of the nylon curtain layer in contact with the ground, resulting in slippage, slow start, and accelerated tires. Surface wear and other problems will affect the life of the tire.

In today's society, the growth rate of locomotives is very rapid, and the demand for tires also increases accordingly. In addition, tires are also an important component of a locomotive, which is related to whether the locomotive can run safely. At present, most locomotive factories use tubeless tires. This kind of tires is the same as general pneumatic tires. When a foreign matter pierces the tire, it will cause a large amount of gas to leak out. Therefore, configuring high-quality tires is a general concern of locomotive factories.

The purpose of this utility model is to design a locomotive safety tire with an improved structure, which can slow down the gas leakage speed of the nylon layer after the tire is pierced by foreign matter, increase the tightening force of the tire and strengthen the friction force of the tread, and prevent the tire from Start slippery, improve the durability, skid resistance and tread wear resistance of the tire when driving at high speed.

The locomotive safety tire with improved structure of the utility model comprises a waterproof and airtight rubber layer, a nylon curtain layer and a rubber cortex, and is characterized in that:

The nylon curtain layer includes an oblique nylon mesh layer laid on the waterproof and air-tight adhesive layer, and another oblique nylon mesh layer laid on the oblique nylon mesh layer in a relatively oblique direction. The mesh layers are superimposed to form a cross-shaped nylon curtain layer;

It also includes a steel cord layer, which is laid between the nylon cord layer and the rubber skin layer. The steel cord layer includes a steel mesh layer laid obliquely on the nylon cord layer and another layer laid on the steel mesh layer in a relatively oblique direction. The steel mesh layer on the first layer, and the two steel mesh layers form a cross-shaped steel wire curtain layer.

The locomotive tire of the utility model lays two layers of obliquely intersecting nylon layers on the waterproof and air-tight rubber layer, and lays two layers of obliquely intersecting steel wire layers on the tread contacting the ground, and finally lays a rubber cortex layer for fixing. , completed after sulfur treatment. Under normal use conditions, the nylon curtain will be damaged and will not recover when foreign matter penetrates, but the steel curtain can return to its original shape, so the speed of gas leakage can be slowed down.

Further illustrate the technology of the present utility model below in conjunction with embodiment and accompanying drawing:

Fig. 1, the cross-sectional exploded schematic diagram of this improved structure tire;

Fig. 2, the sectional structure schematic diagram of this improved structure tire;

Figure 3. Schematic diagram when a foreign matter pierces the tire with the improved structure;

Fig. 4, the schematic diagram of the tire with the improved structure after the foreign matter is pulled out;

Fig. 5 is a schematic diagram of the state of the steel cord layer of the tire with the improved structure after the foreign matter is penetrated and pulled out.

Referring to Fig. 1, Fig. 2, the locomotive safety tire of this improved structure is shown among the figure. On the innermost waterproof and air-tight adhesive layer 1, an oblique nylon mesh layer 21 is first laid, and then an oblique nylon mesh layer 22 is laid in the other direction and coated with the nylon mesh layer 21, so that the two Nylon mesh layers 21 and 22 are adhered to the waterproof and air-tight adhesive layer in a cross-shaped nylon curtain layer. Then, lay a layer of oblique steel wire mesh layer 31 on the part of the tire tread layer, and lay the same steel wire mesh layer 32 obliquely in another direction, so that the two steel wire mesh layers 31, 32 Also in a cross shape. Finally, a rubber skin layer 4 is completely coated thereon, so that the steel wire curtain layer and the nylon curtain layer coated therein are tightly fixed, and the outermost tread 5 is formed through a vulcanization heating procedure.

Referring to Fig. 3 to Fig. 5, when a foreign matter is penetrated, the nylon ply layers 21, 22 and steel wire ply layers 31, 32 coated in the carcass have different reactions due to the penetration of foreign matter. Both the rubber cortex 4 and the waterproof and air-tight adhesive layer 1 are damaged and cannot be restored. Nylon curtains 21,22 are easily damaged due to the penetration of foreign matter, but steel wire curtains 31,32 are not prone to damage, but the mesh slits of steel wire curtains 31,32 are stretched by the foreign matter pierced. Because the steel wire itself has a tightening force, even if there is a foreign matter pierced, it can still prevent the gas from leaking out. After the foreign matter is pulled out, as shown in Figure 5, the waterproof and air-tight adhesive layer 1, the nylon curtain layers 21, 22 and the rubber cortex 4 are all It cannot be recovered, and the gas in the tire will leak out from this place, but the steel wire curtain can generate a restoring force after the foreign matter is pulled out, blocking the leak and slowing down the speed of gas leakage.

The locomotive safety tire of the improved structure is assembled on the locomotive, and the weight of the locomotive itself is pressed on the tire. Since the steel cord layers 31, 32 themselves have a tightening force, it can completely eliminate the tension generated by the nylon cord layers 21, 22 when they are under heavy pressure. The expansion of the mesh of the ply layer strengthens the friction of the tread on the ground, prevents the tire from slipping at the start, improves the durability and skid resistance of the tire when driving at high speed, and the wear resistance of the tread.

When sharp foreign objects such as nails, glass, and iron pieces penetrate the tire from the bottom, the nylon curtain layer will be damaged and cannot be restored, and the steel curtain layer will not be damaged, but will only expand. Therefore, after the foreign object is pulled out, it has a tightening force The steel curtain layer can be restored to its original shape, slowing down the gas leakage speed of the nylon curtain layer, so that the owner has time to drive the locomotive to the tire repair station for maintenance before the gas leaks out. Another function of the coated steel curtain is to strengthen the tightening force of the nylon curtain, which can still provide a good tightening effect under the rolling of the locomotive and enhance the friction of the tread. And the coated steel cord layer can completely eliminate the mesh expansion phenomenon of the cord layer produced by the nylon cord layer under heavy pressure, so as to strengthen the friction force of the tread on the ground and prevent the tire from slipping when starting.

Claims (1)

1. A motorcycle safety tire with an improved structure, comprising a waterproof and airtight rubber layer, a nylon curtain layer and a rubber skin layer, characterized in that: The nylon curtain layer includes an oblique nylon mesh layer laid on the waterproof and air-tight adhesive layer, and another oblique nylon mesh layer laid on the oblique nylon mesh layer in a relatively oblique direction. The mesh layers are superimposed to form a cross-shaped nylon curtain layer; It also includes a steel cord layer, which is laid between the nylon cord layer and the rubber skin layer. The steel cord layer includes a steel mesh layer laid obliquely on the nylon cord layer and another layer laid on the steel mesh layer in a relatively oblique direction. The steel mesh layer on the first layer, and the two steel mesh layers form a cross-shaped steel wire curtain layer.

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