CN100572114C - Anti-static tire - Google Patents

Abstract

The present invention relates to vehicle automobile antistatic technique, a kind of tire with anti-static electrification is disclosed, comprise tire lip, sidewall and crown, it is characterized in that extending to crown through the sidewall from the tire lip is provided with a conductive layer, the conductive layer of described tire lip portion is arranged at the outside face of tire lip, can with the wheel rim direct contact; The conductive layer of described crown is provided with grounding contact.The present invention with the ground connection of wheel rim, realizes the effect by the tire release electrostatic by increase conductive layer in tire.Advantages such as it is reliable and stable to have discharge performance, and sustainable discharge is durable in use, and favourable again vehicle is attractive in appearance.

Description

Antistatic wheel tyre

Technical field

The present invention relates to a kind of automobile antistatic technique, specifically by on tire, improving to realize the automobile electrostatic prevention.

Background technology

Control on vehicle generally has following several method for static: chain or other formula electric conductor that mops floor one, mop floor.Jolting during by vehicle ' causes the chain that mops floor to contact with ground static is directly imported the earth and discharges the electric charge that accumulates on the car body, be to use the most general vehicle anti-static method, but effect can shorten along with the wearing and tearing of the chain that mops floor, with the bad contact of car body connecting bridge, ground is smooth and make the appearance of problems such as it can not contact to earth for a long time and become bad even disappear.Can only discharge with it and be connected good body portion electric charge, the electric charge far away and that connect resistance major part of can not adjusting the distance thoroughly discharges; Two, air electrostatic device.Principle of work is transmitted to static in the car on the discharger by its in-to-in plain conductor exactly, passes to the Nature by air again, reaches the purpose of eliminating car body static.It is very big that this discharge mode is influenced by the conductive characteristic of air dielectric, and effect is very unstable; Three, electrostatic prevention car wax.By keeping vehicle body appearance metal part and the isolated friction of airborne dust to eliminate the generation of static, this method can only partly solve " completely cutting off " problem, does not have insulating effect for the ground disc portion, and therefore effect is very limited, and time length is not long yet.

Summary of the invention

What the present invention will solve is the existing above-mentioned deficiency of existing automobile antistatic technique, a kind of tire with electric conductivity is provided, be intended to improve the automobile anti-static effect, assemble the release electrostatic that this tire can be realized the automobile continuous and effective, thoroughly solve car body accumulation of static electricity problem.

Purpose of the present invention will be achieved through the following technical solutions: a kind of antistatic wheel tyre, comprise tire lip, sidewall and crown, it is characterized in that extending to crown through the sidewall from the tire lip is provided with a conductive layer, the conductive layer of described tire lip portion is arranged at the outside face of tire lip, can with the wheel rim direct contact; The conductive layer of described crown is provided with grounding contact.

Described conductive layer preferably adopts flexible conducting material, and this material can be conductive rubber, conductive fabric of non-metal kind etc., also can be filament, film of metal species etc.

The conductive layer of described tire lip portion is mainly used in to be realized and being electrically connected of wheel rim, and can be along the setting continuously ringwise of tire lip one circle, also can allow conductive material interrupted be evenly distributed on tire lip one circle.

The conductive layer of described sidewall part can be designed as the complete physical layer that is full of the side; Perhaps be designed to be some the buss that the curtain shape is distributed in the sidewall, described bus can rectangular distribution, the conductive layer of termination tire lip portion on it, the conductive layer of following termination crown; Interweave again or by the electric conductor that many two join with tire lip and crown conductive layer respectively and to form conductive mesh.Adopt first kind of structure, its electric conductivity the best, but waste conductive material.And second kind of structure is fit to cooperate with the interrupted tire lip conductive layer that distributes, and can save conductive material, but in use, because of the stretching and the flexural deformation on sidewall, may make the bus fracture.The third structure is the improvement to second kind of structure, and net structure can increase the electric conductivity of conductive layer.Because conductive grid radially becomes a drift angle with tire, can improve the anti-fracture performance of bus by actv. again.

Above-described tire lip and sidewall partially conductive layer can be good with the latter in the bilateral symmetry setting also only in the one-sided setting of tire.

The conductive layer of described crown should be arranged in the crown ground plane, keep certain distance with the crown ground plane, be preferably disposed between wearing layer and the wiring layer, its structure can be designed as the physical layer that is planar, also curtain shape or the netted conductive layer that can be made up of many conductive material that an end or two ends and sidewall conductive layer join.

Described grounding contact can be the ring that is provided with around one week of tire along crown.This ring inner ring and crown conductive layer join, and the outer ring extends to the crown ground plane.This annular grounding contact can be side by side a plurality of.The annular grounding contact can be realized the continuity of discharging over the ground.But this kind structure is separated the wearing layer of annular conductive material both sides, breaks the integraty that has encircled wearing layer, has reduced the bulk strength of crown.

As the improvement of above-mentioned annular grounding contact, described grounding contact is designed to needle-like, the root of each grounding contact connects the crown conductive layer, and the tip passes outwards through wearing layer and extends to the crown ground plane.This structure has kept the integraty of crown wearing layer under guaranteeing the little preceding topic of discharge effect influence, guaranteed its bulk strength.When cooperating with netted crown conductive layer, it is good that described needle-like grounding contact is arranged on crown conductive layer mesh node place.

As another kind of improvement the of the present invention, the rubber part of whole tire is all adopted the conductive rubber manufacturing.

Equip the vehicle of antistatic wheel tyre of the present invention, on its car body metal piece since a variety of causes produced electric charge and run up to when to a certain degree forming the voltage to ground difference, the metal car body can with this part charge guiding nearby wheel rim and import the earth by the conductive layer of being located on the tire, because wheel connected to chassis continuity, the electric charge that is produced can't roll up high potential, so effluve is contained in bud.

The present invention compared with prior art has the following advantages and effect: 1, the car body electric charge directly by the multiple spot release over the ground of each wheel, has continuity and the bad contact problem can not occur; 2, be not subjected to the influence of environmental change, release electrostatic is thorough.There are a plurality of wheels simultaneously the electric charge of different parts on the car body to be discharged along separate routes over the ground nearby, overcome the single-point grounding chain halfway problem of discharging, fundamentally eliminated the accumulation of electric charge and the charge difference that vehicle body resistance causes; 3, have electromagnetic shielding action, electromagnetic radiation energy that various electrical equipment produces in the car is played shielding action.Because wheel is a conductor, whole locomotive body is in ground state all the time, not only can not accumulate electrostatic charge continuously on the car body, can also shield electromagnetic radiation; 4, do not take any vehicle body space and do not influence any car body outward appearance yet.

Figure of description

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a tire conductive coating structure scheme drawing of the present invention.

Fig. 2 sidewall conductive layer is arranged on the sidewall wearing layer with interior embodiment structural representation.

Fig. 3 sees conductive coating structure scheme drawing of the present invention from the tyre side face.

Fig. 4 is a crown conductive coating structure scheme drawing of the present invention.

Fig. 5 sees that from the tyre side face conductive layer of the present invention adopts cancellated structural representation.

Fig. 6 is the netted crown conductive coating structure of a present invention scheme drawing.

Fig. 7 sees that from the tyre side face conductive layer of the present invention adopts the scheme drawing of planar physical layer structure.

Fig. 8 is the planar crown conductive coating structure of a present invention scheme drawing.

The specific embodiment

With reference to Fig. 1, antistatic wheel tyre of the present invention comprises a conductive layer that wheel rim 1 is electrically connected with tyre contact patch 10.Described conductive layer mainly divides three parts: the conductive layer 5 of the conductive layer 3 of tire lip 2 parts, sidewall 4 parts, the conductive layer 7 of crown 6 parts.Described tire lip conductive layer 3 is arranged on the outside face of described tire lip 2, after wheel rim 1 assembling, can with wheel rim 1 part surface direct contact.Its function is to realize being electrically connected of conductive layer and wheel rim 1.Described sidewall conductive layer 5 is positioned at the outside face on sidewall 4, and its function is equivalent to lead, and the static charge that tire lip conductive layer 3 is received is delivered to crown conductive layer 7.In this embodiment sidewall conductive layer 5 is arranged at the outside face on sidewall 4, when the tire side contacts with outer object, also can plays the auxiliary discharge effect.

Described crown conductive layer 7 and grounding contact 8 are key position of the present invention, are to realize that conductive layer is discharged into static charge the vitals of the earth.Described crown conductive layer 7 is positioned in the crown wearing layer 9, can avoid crown 6 to damage conductive layer like this in the normal wear phase.Described grounding contact 8 upper ends and crown conductive layer 7 join, and lower ends downward is passed crown wearing layer 9 and extended to crown ground plane 10.Adopt this structure, when grounding contact 8 shortens along with the wearing and tearing of crown surface, can keep an end points ground connection all the time.

With reference to Fig. 2, this embodiment is the improvement of doing on Fig. 1 basis, and sidewall conductive layer 5 is arranged in the sidewall skin 11.On the one hand because in tire makes, sidewall 4 and outer chance that contacts seldom, not exposing 5 pairs of discharge effect of sidewall conductive layer influences very little.On the other hand, the more important thing is sidewall conductive layer 5 hiddenly in the top layer, help protecting sidewall conductive layer 5 not to be damaged.In long-term use, further guaranteed the stability of conductive layer discharge.

With reference to Fig. 3, Fig. 4, tire lip, sidewall, crown three partially conductive layers 3,5,7 all can adopt a variety of structures to realize its function among the present invention.In the present embodiment, described tire lip conductive layer 3 was provided with continuously along 2 one weeks of tire lip, in the form of a ring.Its advantage is and wheel rim 1 contact surface maximum.Described sidewall conductive layer 5 adopts curtain shape layout, rectangular distribution.Materials are less on the one hand to adopt this structure; Can guarantee the continuity between 4 ectonexines of sidewall on the other hand, improve the bulk strength of tire.

Described crown conductive layer 7 is net structure, wherein transverse grid line two ends connect sidewall, both sides conductive layer 5 respectively, the longitudinal network ruling along crown 6 around one week of tire, the continuous setting of longitudinal network ruling, the static charge that the sidewall conductive layer 5 of diverse location can be transmitted reaches the position nearest apart from ground; Described grounding contact 8 extends to the ring that crown ground plane 9 forms outward for the longitudinal grid alignment.The static charge that the continuity of ring earthing contact 8 can make crown conductive layer 7 carry discharges at any time nearby.

With reference to Fig. 5, Fig. 6, the following shortcoming that exists in view of Fig. 3, Fig. 4 embodiment: one, the bending that directly makes progress at tire of sidewall 4, stretch the place distortion and may make 5 fractures of strip conductive layer.Two, continuous tire lip conductive layer 3 structures, grounding contact 8 structures need more conductive material, are unfavorable for saving cost.Three, continuous grounding contact 8 structural failures the globality of crown wearing layer 9, reduced the bulk strength of tire.This embodiment has been done further improvement: one, tire lip conductive layer 3 intermittently is provided with.Tire lip conductive layer 3 is to captive joint with wheel rim 1, and it is little to the electric conductivity influence suitably to reduce contact surface.Two, sidewall conductive layer 5 is designed to net structure, each mesh lines and tire radially have certain drift angle r.The staggering path of sidewall conductive layer 5 conduct charges that makes of grid is abundanter, and when certain segment mesh thread breakage, the electric charge that conducts to this place can select other branch road to flow away.In addition, mesh lines and tire drift angle r radially can be alleviated the stressing influence of sidewall radial deformation to mesh lines.Three, grounding contact 8 is designed to needle-like.Needle-like grounding contact 8 has not only reduced the use of material, has also solved the problem that the globality of destroying crown wearing layer 9 is set continuously preferably.

With reference to Fig. 7, Fig. 8, in the present embodiment, described sidewall conductive layer 5 and crown conductive layer 7 all are designed to physical layer, are planar structure.The continuous tire lip of this respective outer side edges conductive layer 3 and ring earthing contact 8 can perform to the electric conductivity of conductive layer ultimate attainment.But need to use more conductive material.

The three kinds of embodiments in front are three kinds of array modes, all right alternate manner arbitrary combination in the actual implementation process, such as, continuous tire lip conductive layer and netted sidewall conductive layer, netted crown conductive layer, ring earthing contacts mates, perhaps interrupted tire lip conductive layer cooperates or the like with curtain shape sidewall conductive layer, curtain shape crown conductive layer, needle-like grounding contact.

What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.

Claims (4)

1. An antistatic tire, comprising a bead (2), a sidewall (4) and a crown (6), a conductive layer is set from the bead (2) to the crown (6) through the sidewall (4) , the conductive layer (3) of the bead (2) part is arranged on the outer surface of the bead (2), and can be in direct contact with the rim (1); the conductive layer (7) of the tire crown (6) part is set There is a ground contact (8), which is characterized in that the conductive layer (5) of the sidewall (4) and the conductive layer (7) of the crown (6) are distributed in a mesh shape, and the sidewall (4) ) part of the conductive layer (5) has an off-angle (r) with the radial direction of the tire. 2. The antistatic tire according to claim 1, characterized in that the grounding contact (8) is annular, the inner ring of which is in contact with the crown conductive layer (7), and the outer ring extends to the crown (6) ground plane (10). 3. The antistatic tire according to claim 1, characterized in that the crown conductive layer (7) is distributed inside the crown (6) in a net shape, and the ground contact (8) is needle-shaped, and its The root is connected with the crown conductive layer (7), and its tip extends to the grounding surface (10) of the crown (6). 4. The antistatic tire according to claim 3, characterized in that the root of the ground contact (8) is connected to the mesh node of the mesh crown conductive layer (7).

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