CN2040040U

CN2040040U - Froth core tyre

Info

Publication number: CN2040040U
Application number: CN 88217930
Authority: CN
Inventors: 刘兰森
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-11-14
Filing date: 1988-11-14
Publication date: 1989-06-28

Abstract

The utility model discloses a froth core tyre. The froth core tyre is glued together by a tyre cover made of rubber and an inner tyre core made of polyurethane froth or froth with similar mechanical properties with the polyurethane froth, the cross section of the froth core tyre approximates to a square, both sides of the froth core tyre are flat surfaces, the tread of the froth core tyre is flat, and the section embedded in the rim of the froth core tyre is interference fit. For adapting to the existing full drop center rims, a rim tape is arranged between the rims and the tyre. The tyre has favorable elasticity, large contact area, puncturing prevention, no explosion and no air leakage. Less rubber is used. The utility model has the advantages of light weight and low cost, and the froth core tyre is suitable for the wheels of various rubber-tyred vehicles.

Description

Froth core tyre

A kind of tire of transportation and communication wheel.

Used tire has to be inflated and solid two kinds, and band tyre weight is big, poor flexibility, so only be used for the micro-miniature wheel; Light, the good springiness of inflated wheel carcass is widely used in various wheels, slowly and loses heart but its shortcoming is a ubiquity, is stabbed disappointingly sometimes, and explosion sometimes results in hand cramps and endangers to utilization.Many people have set about studying a kind of novel tire in the recent period, for example, between Tire ﹠ Tube, set up the bike tyre (GG862-02820) of foam capable of preventing puncture, tire (GG86203911) in foam is solid, the complete light tire of foam (GG86205347) internal layer is pressed with the tire (GG86210130 of rubber grid, implementing) etc., these tires all exist certain defective or limitation.

The purpose of this utility model provides a kind of different novel tire.

Content of the present utility model: tire is bonded together by wheel outer casing (1) and tire inner core (2) and forms.The cross section shape of tire is bordering on square, and two sides are the plane, and tread is more flat, and the existing tire of its radius of curvature suitably increases (being increased to more than 1.5～2.5 by 0.5～1 of tyre width) to increase ground contact area.The material of wheel outer casing (1) is to make the used rubber of tire usually.Needs according to vehicle can be the full rubber of thin-wall, or paste the rubber of cord at inner face.The material of tire inner core is density polyurethane foam or the close with it foam of mechanical characteristics in the hard.Adhesion agent can be with being suitable for the bonding various adhesion agent of rubber and foam.For setting-in is firm, tire embeds drop center portion and is divided into interference fit.In order to adapt to existing some wheel rim (for example drop-center rim of integral type), between wheel rim and tire, set up rim strip (3) as the annex of tire, the bench section of rim strip is an oblong, material is identical with tire inner core (2).

Advantage of the present utility model and good effect are: 1. good springiness, and ground contact area is bigger; 2. be not afraid of and stab, do not have explosion and reveal the gas problem; 3. weight is lighter; 4. rubber consumption is less; 5. cost is lower; 6. applicability is wide, applicable to the wheel of various rubber-tyred vehicles.

Accompanying drawing is the drawing in side sectional elevation of foam core tire.1, wheel outer casing, 2, the tire inner core, 3, rim strip.

Realize that best way of the present utility model is, wheel outer casing (1) is made with rubber for tire, and tire inner core (2) is made with density polyurethane foam in the hard, and the two is bonded together, and embeds drop center portion and is divided into interference fit.The section shape of tire such as accompanying drawing, the wall thickness of wheel outer casing (1) is according to the needs decision of vehicle, and the decorative pattern of tread adopts used decorative pattern usually.For some existing drop-center rim, between wheel rim and tire, add rim strip (3), its material is identical with tire inner core (2).

Claims

1, a kind of foam core tire is characterized in that, tire is bonded together by wheel outer casing and tire inner core and forms, and the shape of bench section is bordering on square, and both sides are the plane, and tread is more flat.

2, foam core tire according to claim 1 is characterized in that, the outer field material of tire is a rubber, can be the rubber that full rubber or inner face paste cord.

3, foam core tire according to claim 1 is characterized in that, the material of tire inner core is density polyurethane foam or the close with it foam of mechanical characteristics in the hard.