Method of tire surface fitting for contact with road surface and device to this end

FIELD: process engineering.

SUBSTANCE: invention relates to pneumatic tire tread. Antiskid stud has base and head. Stud with base is fitted in and glued in stud bore surface. Preliminary, first component of two-component glue is injected into stud bore. After injection, stud coated with second component of two-component glue in fitted in stud bore so that said second glue component gets in active contact with first flue component to get cured. Antiskid stud is glued to bore walls.

EFFECT: higher reliability of stud attachment, lower wear of equipment.

7 cl, 9 dwg

 

The invention relates to a method of equipping the surface of rubber articles intended for contact with the road surface - in particular the profile of the tread of the pneumatic tires of the vehicle in which the anti-skid spike, made with a base of anti-skid spike and head of the anti-skid spike, set its base in made in the surface of the hole for the spike anti-skid and are fixed with glue, as well as to a device for installing studs into the rubber product is made to contact with the surface of the road surface, in particular the profile of the tread pneumatic tires of a vehicle in which the anti-skid spike, made with a base of anti-skid spike and head the anti-skid spike, set its base in performed on the surface of the hole for the cleat snow and stuck.

As is known, the profile of the tread of the pneumatic tires of vehicles equipped with studded and spike skid performed, as a rule, with the enlarged base of the spike anti-skid and installed in the hole of the tread profile, where is fixed flush. For the introduction of the anti-skid spike holes for the anti-skid spike first, how great the ILO widen. After this spike snow starts in an enlarged hole for the cleat snow. The anti-skid spike is retained in the tire using a geometric circuit is made between the elastic rubber material and the specially made thorn snow. With increasing service life and resulting wear of the tire holding force geometric circuit becomes insufficient, and studded can be lost. Along with this, when this situation occurs when driving, during which there is high load holding force geometric circuit under the influence of the forces is overcome, and this, in turn, also leads to the loss of studs. Acting while driving at high loads on the anti-skid spike and the surrounding rubber material forces can in addition reduce the geometric action of the circuit, so that the threshold of the net force holding the spike pressure is achieved before, and separate studded undesirable early can be lost. To overcome these effects studded performed with the basis of studs is a special form, and use only special, especially suitable rubber materials for Costigan what I particularly reliable geometric circuit.

In some cases, studded offered to secure in the hole for the cleat snow by gluing. With this purpose, one-component liquid adhesive is filled from the outside into the hole for the anti-skid spike, and spike skid was installed in the usual way in the completed liquid adhesive hole for the cleat snow. After this happened the hardening of the liquid adhesive. Additional fastening by gluing allows you to increase resistance of the anti-skid spike in the tread profile. Failure at peak loads or additional reduction of the load forces the geometric circuit between the rubber material and studded as a result of additional exposure to the forces of adhesion, thus, do not lead to the loss of studs. In the result, it is possible to reduce the loss of studs. Achieved using adhesive bonding higher resistance allows a great flexibility in the design of the anti-skid spike and rubber compound used for the material of the tread. Of course, that during the installation of studs is exciting to expand in the stud holes protivoskol the Oia tools can also stick because of fill outside of the liquid adhesive. The head of the anti-skid spike to equip the dowel holes for the anti-skid spike, which is supplied at least to the hole, when the filling liquid adhesive with the introduction of tools for the expansion of holes in the hole for the cleat snow or at the beginning of the introduction of the anti-skid spike in the hole for the cleat snow can stick protruding remnants of adhesive, which is undesirable. Such bonding has a negative impact on the implementation process. It's already after short-term use may have a negative impact on functional ability. This breaks the process quick and accurate installation of a large number of studs. For this reason, there arises a need for additional cleaning steps and devices that also complicate and slow the process of installation of studs.

Therefore, the present of the invention is to provide a simple and reliable manner, providing studded surface of the rubber products made for contact with the road surface - in particular the profile of the tread of the pneumatic tires of the vehicle when using the advantages of adhesive connected to the I without gluing fixture for installation of studs and without the resulting negative impact on the process.

According to the invention the task is solved by the method of equipping the surface of rubber articles made contact with the road surface, in particular the profile of the tread of the pneumatic tires of the vehicle in which the anti-skid spike, made with anti-skid base and head of the anti-skid, set its base is made in the surface of the hole for the anti-skid spike and fix it with adhesive according to the signs of paragraph 1 of the claims, in which the first component of a two-component adhesive is injected into the hole for the cleat snow, and then the injection is covered with a second component of a two-component adhesive anti-skid spike is injected into the hole for the anti-skid spike so the second component of the adhesive is in active contact hole for the cleat snow with the first component adhesives and bonded during curing, sticks a thorn in the snow in the hole for the cleat snow.

Regardless of this task is also solved by a device for equipping a studded rubber products on the surface, is made to contact with the road surface, in particular profile is rotector pneumatic tires of the vehicle, in which the anti-skid spike, made with a base of anti-skid spike and head of the anti-skid spike, set its base in made in the surface of the hole for the spike anti-skid and are fixed using adhesive, according to the signs of paragraph 5 of the claims due to the fact that the device for injection are performed for, in particular controlled injection of the first component of a two-component adhesive in the hole for installation of anti-skid spike and that the device for the supply and installation made for, in particular, managed supply is covered by the second component of the adhesive of the anti-skid spike to the hole for installation of studs.

This provides the opportunity for dosed supply of adhesive to the bottom of the hole for the cleat snow without gluing the outer surface of the rubber products in the surrounding area of the hole for the cleat snow and without sealing hole channel for the anti-skid spike. The extension of the channel holes for installation of anti-skid spike with the purpose of introducing the anti-skid spike can be made reliably using the normal expansion of the instruments and, at the same time, avoid direct contact and sticking whom were located in the hole for the cleat snow-curable adhesive. Also the introduction of the anti-skid spike with known devices for installation is made so that the anti-skid spike is introduced into the channel holes for dowel snow and only after the first, already injected component adhesive and the second applied to the anti-skid spike component adhesives, will come together in active contact hole for the cleat snow, solidification begins in the hole for the anti-skid spike, that is, where should happen bonding. In addition, the injected first adhesive penetrates when installing the anti-skid spike into the hole for the cleat snow under the action of pressure on the first component of the adhesive between the anti-skid spike and the bottom of the groove between the tongue and the walls of the hole for the cleat snow along the anti-skid spike upward and envelops the anti-skid spike depending on the dosage of injection required for bonding the height of the passage in the hole for the cleat snow. Thus, it is possible to prevent the undesirable adhesion of devices for installation of thorns and tools for the expansion of the hole and the surface of the rubber products. The benefits of bonding with increased resistance of the spike counter is calgene in the rubber product with greater flexibility in the design of forms of anti-skid spike and rubber compound used can be widely used. Used instruments and apparatus for installation can be used without additional costs to prevent contamination due to adhesion and to eliminate the resulting plots gluing. This allows a great flexibility in the use of materials and devices for equipment rubber products-studded and faster and more accurate flow of the installation process spikes in the rubber product.

Especially preferred is a method according to the signs, paragraph 2, of the claims, and the first component of the adhesive injected in the first stage of the installation in the lower part of the stud holes of the skid, and the anti-skid spike only after this second stage of the installation enter first before contact with the first component adhesive and then to the position of the seat of the anti-skid spike in the hole for the cleat snow, the first component of the adhesive is extruded radially outward between the hole for the anti-skid spike and spike snow covered along the second component adhesive cleat snow and also covers it. The result of this is an easy way to reliably prevent unwanted adhesion. The contact between the fixture for installation lipopolysaccharide and the first component of the adhesive is reliably prevented due to the injection in the lower portion of the hole for the cleat snow, so is prevented largely erroneous premature contact of both components of adhesive outside holes of studs and gluing.

Especially preferred is a method according featured item 3 claims, in the exercise of which before injection of the first component adhesive first, the anti-skid spike, at least, one designed for mounting by gluing the surface area covered by the second component of the adhesive. The result of this is an easy way with greater reliability to prevent unwanted adhesion. Possible contact between the second and the first component adhesive securely confined in the hole for the anti-skid spike, resulting in reliably prevented that the outside holes for the anti-skid spike can occur erroneous solidification, and you can eliminate the bonding of structural elements.

Especially preferred is a method according to the signs of paragraph 4 of the claims, and the anti-skid spike on its surface that is dipped into the hole for the cleat snow cover, at least half, in particular completely, the second component of the adhesive veshestva a result, it is possible to provide a particularly reliable landing of the anti-skid spike in the bonding to the greater surface area of the hole for the cleat snow.

Especially preferred is the implementation of the device according to the signs of paragraph 6 of the claims, and a device for injection is reported with the aim of supplying with spare tank for the first component of the adhesive substance from which the first component adhesive is supplied by the device for injection into the hole for the cleat snow. It provides continuous and due to the necessity of replenishing the device for injection. The process of equipping the anti-skid spikes can be made without interruption of continuous replenishment device for injection.

Especially preferred is the implementation of the device according to the signs of paragraph 7 of the claims, and a device for the supply and installation of studs with the purpose of supply of studs is reported with a spare tank of studs from which the spikes of the anti-skid device for the supply and installation served in the hole of studs. This allows the installation of studs when using conventional installations for installation of studs without full conversion of the industrial installation.

Hereinafter the invention is explained in more detail on the basis schematically shows the military in Fig. 1-6 embodiments of the invention for installation of studs in the tread profile of the pneumatic tires of the vehicle. They show:

Fig. 1 is a top view of the coupling element profile profile tread pneumatic tires of a vehicle with a hole for the cleat snow.

Fig. 2 - the picture in terms of the coupling element of the profile in Fig. 1 in section along II-II in Fig. 1.

Fig. 3 is a side view of the anti-skid spike uncoated.

Fig. 4 is a schematic representation of the installation process shown in Fig. 2 hole for the anti-skid spike shown in Fig. 4A partially covered with thorn-skid presented in Fig. 4b-4d stages of installation of studs.

Fig. 5 is a schematic illustration of the device for installation of studs for installation of studs according to Fig. 4 method.

Fig. 6 is a side view of the fully covered with thorn-skid alternatively.

In Fig. 1 and 2 is shown rising in the radial direction R of the pneumatic tire clutch element 13 of the tread profile of a vehicle passing in the axial direction And pneumatic tyres of a vehicle and arranged one after another in the circumferential direction U of the bus transport cf is DSTV thin sections 14 and hole 1 for the anti-skid spike a known type. Hole 1 for the anti-skid spike made known to host schematically shown in Fig. 3 thorn 2 anti-skid known type. Spike 2 snow made with located for use in the pneumatic tire in the radial direction R of the pneumatic tire from the inside out on top of each other by the base 15, an intermediate portion 11, a head 9 and a radially outer top 12 of the anti-skid spike. Hole 1 for the anti-skid spike made to accommodate the cleat 2 anti-skid respectively performed in a radially inner lengthy segment holes 1 for the anti-skid spike hole 7 to the base and passing from the opening 7 to the base to a radially outer side surface of the clutch element 13 of the profile channel 6 holes for insertion of a stud 2 anti-skid. However, as seen in Fig. 3, the stud 2 snow made rotationally symmetrical about the axis of a stud snow, in the base 10, and a lengthy segment of the head 9 of the anti-skid spike made accordingly cylindrical with a diameter that is approximately two times more than its intermediate portion 11. Hole 1 for the anti-skid spike, as his longest stretch of the canal, 6 holes, and in its extended participants of the e holes 7 for the base is made with a cylindrical lateral surface, the diameter of the holes in the plot holes 7 for the base less than the diameter of the cylinder base 10 of the anti-skid spike, however, compared with the cylinder diameter of the intermediate portion 11 of the spike 2 anti-skid. Formed in the radial direction R in the pneumatic tire, the height of the openings 7 for a selected smaller than the height of the base 10 of the anti-skid spike, passing along the axis of the length of the cleat 2 anti-skid. Channel 6 holes are made with a diameter that is slightly less than the diameter of a stud 2 snow in the intermediate portion 11. Presented on Fig. 2 the total height HLholes 1 thorn of snow, which when viewed and measured in the radial direction R pneumatic tires, runs from bounding the hole 1 of the anti-skid spike radially inward of the bottom of the 8 holes for the anti-skid spike to restrict the profile of the blocking element 13 radially outward side surface, in a minor extent less than that measured along the axis of the anti-skid spike height Hsthorn 2 anti-skid, which represents the value of the length along the axis of the spike anti-skid between the lower end surface, which limits the spike 2 anti-skid at the base of the cleat snow, and tor the Eva surface, which limits the spike 2 snow head 9 of the anti-skid spike.

To supply the first liquid component 3 known two-component adhesive, which is suitable for rubber compounds, is stored in the reserve tank 23, as shown in Fig. 5.

In the spare tank 21 is stored pre-coated spikes 2 anti-skid. Spikes 2-skid, as shown in Fig. 4A is covered with the second withstanding efforts when installing studs component 28 two-component adhesives. The coating is deposited on the entire lower section of the length of the cleat snow, at least up to half the height HSthorn snow. The coating is applied, for example, the known processes dipping.

For example, the first liquid component 3 adhesive is an injected component-based epoxy resin, for example on the basis of bisphenol a, phenol-novolak, resorcinol diglycidylether ether, and the second component 28 of adhesive is a suitable for this purpose curing component known type on the basis of the acid anhydride, amine or phenolic compounds. Alternatively, a two-component adhesive is an adhesive-based cyanacrylate or on the basis of polychlor prana, and one of the two components represents the first liquid injected component 3 adhesive, and the second component 28 of adhesive made of powdered and dissolved or dispergirovannom form is deposited on the anti-skid spike by coating by dipping.

To supply the first inject a metered quantity of the first component 3 of adhesive through the channel 6 holes 1 for the anti-skid spike to the hole 7 to the base of the device 22 for injection and cover the hole 7 for the base, as shown in Fig. 4b, the bottom of the 8 holes. After that, as shown in Fig. 4C, the channel 6 holes extend in a known manner by overcoming the current in the reverse direction by the elastic force of the rubber material of the profile of the locking element 13. In the expanded condition, as shown in Fig. 4C, spike 2 snow its forward end surface 15 is introduced from the outside into the hole 1 for the anti-skid spike up until the end surface 15 is in contact with the first component 3 of adhesive, and then moves further inward until then, until the base 10 of the anti-skid spike will not enter further into the hole 7 of the base. Located between the end surface 15 of the spike 2 anti-skid bottom and 8 on which verste 1 for the anti-skid spike metered quantity of the first component 3 adhesive is compressed in the same way liquid component 3 adhesive extends under the thorn 2 across the end surface 15. While spike 2 anti-skid is inserted to its end position landing in the hole 1 for the anti-skid spike, component 3 adhesive is distributed between the end surface 15 and the bottom 8 across the bottom 8 and then is extruded along a side surface of a stud 2 anti-skid upward. As soon as spike 2 snow reaches its end position landing in the hole 1 for the anti-skid spike, hole extended through the retaining means in diameter is released by removing the retaining contact, resulting in the rubber material of the profile of the locking element under the current in the opposite direction (return) by the elastic force in the plot holes 1 for the anti-skid spike fits flush around the cleat 2 anti-skid.

When this liquid adhesive 5 as shown in Fig. 4d, is extruded along the covered second component 28 of adhesive-side surface of a stud 2 skid to the bottom portion of the length of the head 2 of the anti-skid spike and solidifies with the formation of adhesive joints together with the second component 28 of adhesive and, thus, sleeve the t thorn 2 snow with the surrounding rubber material around the section length of the adhesive 5, formed from the first component 3 of adhesive and the second component 28 of adhesive. After this spike 2 anti-skid is fixed in the hole 1 for the anti-skid spike using geometric closures and adhesive bonding.

Installation of studs (Osipovna") is performed by means schematically shown in Fig. 5 device, in which a pneumatic tire 18 of the vehicle with holes 1 of studs in a known manner fixed on the rotary output device 17, is placed rotatably on the frame 16 and driven by electric motor 19 through a block 24 of the control. The first liquid component 3 adhesive from the reserve tank 23 to the inlet line 26 using tool 22 for respectively managed by the Manager computing device 24, is injected is metered in to be coating the hole 1 of studs. For this purpose, the device for injection is made known, is not described in more detail by way with a controlled pump, which is in connection with the management computing machine 24 and generates the injection pressure. Then the injection device in a known manner by using a managed Manager computing device 24 gun 20 for the thorns against whom algenia shoots coming from the auxiliary reservoir 21 for anti-skid spikes on the supply line 27 for of studs in the gun 20 is covered with thorn 2 snow into the hole 1 for the anti-skid spike.

For control and regulation of the process of installing studs on the profile of the tread of a pneumatic tire of a vehicle is the camera 25, which detects the position of the hole 1 for the anti-skid spike for installation of anti-skid spike. Using these registered data control computer 24 for injection and installation of anti-skid spike manages device 22 for injection, and the engine 19 - gun 20 of studs, and the driving movement of the tire 18.

The dosing amount injected to the first component 3 adhesive is chosen so that it corresponds to the desired height of the coating of adhesive on the anti-skid spike in the already established position of the spike, as shown in Fig. 4d.

In case of necessity of thorns 2 snow can in a known manner previously subjected to appropriate surface treatment. For example, in one embodiment, the implementation of them previously known cause priming coating to enhance adhesion of adhesive to the surface of the anti-skid spike. When using the spike 2 anti-skid aluminum is used, for example, in a known manner, a primer coating of polyurethane.

In Fig. 4A thorn 2 FR is Voskresenie presents only partially caused by the coating. In an alternative embodiment, the spike 2 anti-skid, as shown in Fig. 6, on its entire surface covered with the second component of the adhesive and thus completely covered. The coating can be applied, for example, by dipping or coating in the drum for coating in the drum for coating or other suitable known method.

The list of reference positions

1 - hole of studs;

2 - the anti-skid spike;

3 - the first component adhesives;

5 - adhesive bonding;

6 - channel holes;

7 - hole base;

8 is a bottom openings;

9 - head;

10 - base;

11 - intermediate land;

12 - peak;

13 - shaped blocking element;

14 - slim cut;

15 is a bottom end surface;

16 - Rama;

17 - receiving fixture;

18 is a pneumatic tire of a vehicle;

19 - engine;

20 - gun of studs;

21 - spare tank.

22 - a device for injection;

23 - spare tank.

24 - managing computing unit;

25 - camcorder;

26 to the inlet line;

27 to the inlet line;

28 - floor.

1. The way equipment is made to contact with the road surface p of the surface (13) of rubber products, in particular the profile of the tread of the pneumatic tires of a vehicle, in which the spike (2) anti-skid, made with a base (10) of the anti-skid spike and head (9) of the anti-skid spike, set its base (10) is made in the surface of the hole (1) for the anti-skid spike and fix it by gluing, wherein the first hole (1) of studs inject the first component (3) two-component adhesives, after this injection is covered with the second component (28) two-component adhesives thorn (2) anti-skid injected into the hole (1) for the anti-skid spike, so that the second component (28) of adhesive in the hole (1) for the anti-skid spike enters into active contact with the first component (3) adhesive and is bonded during curing glues thorn (2) anti-skid in the hole (1) for the anti-skid spike.

2. The method according to claim 1, the first component of the adhesive injected in the first stage of the equipment in the lower part of the hole (1) for the anti-skid spike, and spike (2) anti-skid only then in the second stage equipment is introduced into the hole (1) for the anti-skid spike first before contact with the first component (3) adhesive and further to position the planting of thorn (2) against the slide in the hole (1) for the anti-skid spike, the first component (3) of adhesive is extruded radially outward along the covered second component (28) adhesive cleat (2) anti-skid, and also covers it.

3. The method according to claim 1 or 2, and before the injection of the first component (3) adhesive first spike (2) anti-skid on at least one portion of the surface, designed for fastening by gluing, is covered by the second component (28) adhesives.

4. The method according to claim 3, and thorn (2) anti-skid on it dip it into the hole (1) for the spike anti-skid surface cover at least half, in particular completely, the second component (28) adhesives.

5. Device for installation of studs in the rubber product (18) is made to contact with the surface of the road surface (13), in particular in the profile of the tread of a pneumatic tire of a vehicle, in which the spike (2) anti-skid, made with a base (10) of the anti-skid spike and head (9) of the anti-skid spike, its base (10) is made in the surface of the hole (1) for the anti-skid spike and secured by gluing, characterized in that the device (22) for injection are performed for, in particular controlled injection of the first component (3) two-what about the adhesives to be equipping the hole (1) for the anti-skid spike and that the device (20) for supply and equipment made for, in particular managed supply is covered by the second component (28) adhesive cleat (2) anti-skid to be equipping the hole (1) for the anti-skid spike.

6. The device according to claim 5, the device (22) for injection is reported with a spare tank (23) for the first component (3) adhesives, from which the first component (3) adhesive can be fed device (22) respectively to the hole (1) of studs.

7. The device according to claim 5 or 6, and the device (20) for supplying and equipping the purpose of supplying studs (2) anti-skid reported with a spare tank (21) stud (2) snow, from which the spikes (2) anti-skid can be supplied by the device (20) for supplying and equipping of the hole (1) of studs.



 

Same patents:

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Automotive wheel // 2495756

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to whatever wheels. Proposed wheel comprises rim with spokes fitted on the shaft and multiple grousers on periphery. Said rim is shaped to cylindrical drum with through opening for grousers arranged in cylindrical generatrix and has replaceable pliable element arranged in the side facing said shaft to press heads of said T-section grousers to drum inner cylindrical surface. Note here that said pliable element is composed of closed tape or shell. Note also that grousers can be made integral with pliable element of ring gear, including double-helical wheel.

EFFECT: ease of manufacture, better running properties.

3 cl, 1 dwg

Automotive wheel // 2494878

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to automotive wheels. Proposed wheel comprises rim and tread. Said tread is composed of revolving pair consisting of two rings. First ⊥-shape inner ring with crosswire grooves equidistant and parallel to rotational axis moves along said inner generatrix. Second "П"-shape fixed ring with closed guide groove for ⊥-shape inner ring. Tire is composed of elastically pliable rings of coiled spring embracing in fan-like manner the rim rings and engaging the moving ring crosswise grooves on the rim rotational axis side. Note here that endless spring outer peripheral part making the grousers can be gummed or coated with resilient elastomer materials.

EFFECT: ease of manufacture, better running properties.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. External drive mechanisms are temporary fitted at wheel discs at difficult terrain to transmit torque from driven wheels to nondriving wheels. Note here that all wheels with said drive mechanism are temporary connected to transmission.

EFFECT: improved cross country capacity.

FIELD: agriculture.

SUBSTANCE: wheel comprises a tire 12 with a rim 11, a hub 10 with lateral discs 5 and an axis 9, a drive ring 7, fasteners 2 to connect the drive ring 7 to the hub 10, a pusher 13, and an anti-recoil brake 16. On the drive ring 7 the stops 8 are mounted. The brake 16 interacts with the stops 8. The drive ring 7 has joint plates 15 with holes 14, mounted in the center plane and fixed on the inner surface of the drive ring 7. The drive ring 7 is mounted with the ability to change the axial position and fixation by the fasteners 2 on the pins 6 with screw 3, located parallel to the axis and rigidly attached to the lateral disc 5. The lateral disc diameter is made larger than the diameter of the hub 10. The pins 6 pass through the holes 14 in the joint plates 15 of the drive ring. In the pins 6 there is a set of radial holes 4 located in planes parallel to the center plane of the wheel. In the holes 4 of the pins 6 the removable thrust pins 1 are mounted.

EFFECT: constructive implementation enables to improve the control accuracy of the axial position of the drive ring relative to the tire of the rim.

4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to means and ways of increasing wheel tire bite. At the beginning of motion, skidding or braking, friction force in area of wheel contact with various surfaces is adjusted by varying direction and/or angle of transverse tread belts to retain the tire by rim and tread belts outside said contact area and by varying direction and/or shift in said contact area in crosswise wrap by transverse tread belts by adjusting pressure in tire from high to super low, flat tire.

EFFECT: higher efficiency and reliability.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to light off-road transport facilities and is intended for manufacturing pneumatic wheels for moving over marshlands, sandy grounds and loose (including snow-covered) terrains. The method consists in mounting meridional reinforcing belts on toroidal balloon made of gas-proof elastic material; connecting the belts with wheel hub by flexible spokes and filling balloon with gas to permissible pressure. Flexible spokes made as one-fourth of endless threads are fixed on wheel hub by kinking threads in halves and on balloon's reinforcing belts - by ends in V-shaped set.

EFFECT: reducing labour consumption and improving fabricability of rimless wheel manufacturing.

2 cl, 2 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises, at least, two drive oval wheels. Every oval wheel is formed by two unequal arcs. One larger arc is somewhat larger than wheel semicircle and connected with larger-radius arc with its center misaligned with rotational axis. Both oval wheels are arranged vertically and in parallel but with larger and smaller turned in symmetry in opposite sides to make integral surface of rotation equal to radius of larger arcs aligned partially (in parallel) with two points of circle. To eliminate unbalance caused by rotation, every wheel is furnished with counterweight while shape of every disc complies with that of wheel oval.

EFFECT: higher flotation, better traction.

5 dwg

FIELD: process engineering.

SUBSTANCE: set of invention relates to device for moulding or recovery of tire tread and to method of replacing groove plates. Proposed device has processing element with top surface in contact with tire tread and bottom surface. Note here that both said surfaces make first opening. Plate holder to be arranged in said first opening has top surface to get in contact with tire tread and case to make preset shape slot. Note here that plate holder has thrust ledge with top surface in contact with aforesaid processing element, and bottom surface. Groove plate has first part to form groove in tire tread and second part to clamp plate in said device, and thrust ledge with top and bottom surfaces. Note here that said first part features shape complements plate holder slot to allow accommodating groove plate in plate holder.

EFFECT: simplified replacement of groove plates and assembly of plate holder.

30 cl, 30 dwg

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