CN86203605U - Air-free tyre - Google Patents

Abstract

The utility model discloses an air-free tyre, belonging to a vehicle accessory. The air-free tyre is composed of a rubber tyre cover, a foam tyre tube and a rubber tyre flap which are stuck as an entity. Since the foam tyre tube has no expansion force, the cord layer of the tyre cover can be reduced. The tyre tube is made of foam with hairlike holes which are communicated with each other. The air-free tyre has anti-puncturing performance, no crack, long continuous service life and reliable use.

Description

Air-free tyre

The utility model belongs to vehicle body fittings

Present automobile tyre and bicycle.Manual tricycle.Unpowered vehicle tires such as ground row's car all are inflatable tires.The common drawback of this tire is to be afraid of puncture; Be afraid of to split cruelly.In order to overcome the phenomenon that tire leaks gas rapidly because of puncture, some miniature car adopts inner tube free tire, and self-adhesive layer or sealing layer are arranged in this tire.Little and when being retained in the tire that is punctured at the puncture thing, because the adhesive effect voluntarily of self-adhesive layer or sealing layer or wrap tightly effect, tire pressure can be kept a period of time, but for bigger puncture thing or bigger puncture wound, self-adhesive layer or sealing layer just are difficult to keep its normal barometric pressure.The shortcoming of this tubeless tires is: repair difficulty; The inflation difficulty; Sealing difficulty between tyre bead and the wheel rim.And under the megathermal climate condition, self-adhesive layer often flows downward voluntarily, thereby has destroyed balancing of tyre.So tubeless tires though have the advantage of anti-puncture to a certain extent, because of its existing various shortcoming, also is difficult to be adopted by wide model.In case situation is split in generation cruelly, all types of inflatable tires all can lose efficacy at once simultaneously.

The purpose of this utility model is to provide a kind of and is not afraid of puncture and is difficult for splitting cruelly and not needing gas filed air-free tyre.This air-free tyre is as long as on its wheel rim after the fixation, even till its crown decorative pattern part thoroughly polished.In its whole long-term use life time, do not need to repair, for general puncture with to scratch its mode of operation unaffected, and there is not the generation of splitting situation cruelly.

The structure of air-free tyre sees also the figure (1) of accompanying drawing:

Figure (1) is the part drawing in side sectional elevation of air-free tyre, the 2nd, and crown, the 1st, cushion layer, the 3rd, carcass plies, the 4th, the foamed plastic inner tube of a tyre, the 5th, tyre bead, the 6th, lining band layer, the 7th, sidewall.Wherein, the corresponding site of cushion layer, crown, tyre bead, sidewall and conventional tyre is as good as.Its main characteristics is to have replaced traditional inflatable glue system inner tube of a tyre with the foamed plastic inner tube of a tyre 4, (4) be to be processed into cross-sectional plane to be oval ring bodies, its oval major semiaxis is laterally, semi-minor axis is in vertical (radially), the difference 3-4cm of two semiaxis, the whole foamed plastic inner tube of a tyre 4 fillings are among rubbery cover tyre, and 4 inside is near the position of wheel rim, the strong rubber manufacturing of one lining band layer, 6,6 usefulness compressibi1ity and flexibility is arranged.The foamed plastic inner tube of a tyre 4.Lining band layer 6 and cover tire three should be glued and be one.Used glue should have humidity.Heat-resisting, and the performance of anti-distortion.Also can adopt premium-quality leather shoes glue to replace.

The material that the foamed plastic inner tube of a tyre 4 is used should be selected the open cell type that abscess interconnects and the aperture is trickle for use, requires it to have outstanding resiliency and high resiliency.And its pressure deformation ratio is unlikely to the requirement of undue deformation also must conform to the vehicle load full load time.

The foamed plastic inner tube of a tyre does not resemble the swelling force the inflatable inner tube of a tyre, so the level of the carcass plies of the cover tire of this kind air-free tyre part can significantly reduce---and by 10 original levels: can be kept to 5 levels, can select caprone for use.Fibers such as nylon are woven into orthogonal radial structure, to guarantee that the intensity of carcass plies is constant under the situation that reduces level.

Why the foamed plastic inner tube of a tyre will be processed into the cross-sectional plane ovalize, is in the wheel rim of packing into after the extrusion of special tool tire pincers, after fixing with back-up ring and retainer again, and firm being embedded in the wheel rim of energy, the inner tube of a tyre cross-sectional plane after inlaying is rounded basically.

For motor bike.Ground row's car.Manual tricycle.When bicycle used the utility model, its cross-sectional structure was identical with figure (1) fully, and just physical dimension is dwindled and cushion layer accordingly.Carcass plies suitably reduces, and for bicycle and manual tricycle tire, can remove cushion layer fully from.

Great advantage of the present utility model is not to be afraid of puncture and not have to split phenomenon cruelly, does not need inflation and maintenance, and the long-term use life-span is long, good reliability.

Claims (1)

1. A kind of by cover tire, the inner tube of a tyre.The air-free tyre that the lining band layer is formed, the interior bow that it is characterized in that said cover tire partly has the inner tube of a tyre of being made by the abscess aperture withstand voltage foamed plastic of trickle high resiliency (4) along the circumferencial direction of tire, the inner tube of a tyre (4) has lining band layer (6) near the wheel rim place between cover tire two tyre beads (5).

Images