KR101528439B1

KR101528439B1 - Tire

Info

Publication number: KR101528439B1
Application number: KR1020140182073A
Authority: KR
Inventors: 전용남
Original assignee: 전용남
Priority date: 2014-12-17
Filing date: 2014-12-17
Publication date: 2015-06-16

Abstract

A method of manufacturing tires is provided. The method comprises: (a) preparing an outer surface in a ring shape having an open unit formed to the inner side thereof; (b) inserting an elastic member into the outer surface by interposing an adhesive agent; and (c) installing an adhering member in the inner side of the outer surface.

Description

Tire {TIRE}

The present invention relates to a tire.

Generally, a tire is a rubber material fitted around the outer periphery of a wheel of a vehicle or the like. Taking the wheel of the vehicle as an example, the tire is structured to be coupled to the rim. The cushioning or buffering action is effected by the pressure of the air injected into the inside of the tire.

Conventional tires have a problem of causing a large accident when a puncture occurs.

In addition, in the conventional tire, the inflow of air is inevitably caused by the injection of air. As a result, it was necessary to constantly check the pressure of the tire in order to maintain a constant pressure.

Therefore, it is necessary to develop a tire filled with a rubber composition having a ride feeling similar to that of conventional pneumatic tires.

Korean Patent Registration No. 10-1002990 relates to a no-punk tire, which is an open document in a technical field similar to the present invention.

The present invention seeks to provide a rubber composition that fills the interior of a non-punctured tire.

It is another object of the present invention to provide a method of manufacturing a tire which is not punctured.

It is another object of the present invention to provide a contact member for tire manufacturing.

It is another object of the present invention to provide a tire which is easy to attach and detach to various rims.

The present invention also provides a technique for adjusting the elastic force of a tire.

The present invention also provides a tire in which the elastic member is bonded to the outer skin in consideration of the shrinkage ratio of the elastic member according to the temperature.

According to an aspect of the present invention,

(a) preparing a shell in the form of a ring, the shell having an opening formed therein;

(c) inserting an elastic member into the inside of the shell via an adhesive;

(c) providing a contact member on the inside of the sheath so that the elastic member is in contact with the inner wall of the sheath.

Also,

And the tightening member is a spring.

Also,

Wherein the spring is in the form of a ring with an open section.

Also,

And a step of laminating a weight on an upper portion of the sheath.

Also,

Wherein the elastic member is provided with a groove on which the spring is seated.

According to another aspect of the present invention,

Some sections are open,

A tight fitting member for manufacturing a tire having an elastic ring-shaped body portion.

Also,

And a grip portion protruding toward an inner side of the body portion.

The present invention seeks to provide a method of manufacturing a tire which is not punctured.

In addition, the present invention provides a contact member for tire manufacturing.

Further, the present invention provides a tire which is easy to attach and detach to various rims.

Further, the present invention provides a technique capable of adjusting the elastic force of a tire.

Further, the present invention provides a tire in which the elastic member is bonded to the outer skin in consideration of the shrinkage ratio of the elastic member according to the temperature.

1 is a flowchart of a method of manufacturing a tire according to an embodiment of the present invention.
2 is a perspective view of a shell of a tire according to an embodiment of the present invention.
3 is a top view of the envelope of a tire according to an embodiment of the invention.
4 is a cross-sectional view taken along line A-A 'in Fig.
5 is a perspective view of the elastic member of the present invention.
6 is a plan view of the contact member of the present invention.
7 is a process diagram of a tire manufacturing method of the present invention.
8 is a perspective view showing a process of inserting the contact member of the present invention into the inside of the envelope.
9 is a cross-sectional view of a tire according to another embodiment of the present invention
10 is a side view of an elastic member according to another embodiment of the present invention.
11 is a side view of an elastic member according to another embodiment of the present invention.
12 is a flowchart of a tire manufacturing method according to another embodiment of the present invention.
13 is a view showing a tire manufacturing process according to still another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Those skilled in the art will appreciate that various modifications may be made by those skilled in the art without departing from the scope of the present invention. The embodiments are the best examples for understanding the present invention. Therefore, various modifications are possible within the technical scope of the present invention by those skilled in the art.

FIG. 1 is a flow chart of a method of manufacturing a tire according to an embodiment of the present invention. FIG. 2 is a perspective view of a shell of a tire according to an embodiment of the present invention. 5 is a perspective view of the elastic member of the present invention, Fig. 6 is a plan view of the contact member of the present invention, and Fig. 7 is a plan view of the tire of the present invention. Fig. FIG. 8 is a perspective view showing a process of inserting the contact member of the present invention into the inside of the shell; FIG.

In the tire 100 of the present embodiment, the elastic member 30 is inserted into the inside of the outer shell 10, which is a cross-section of the "C" Therefore, the tire 100 puncture of the present embodiment does not occur. The jacket 10 is readily available and can be used alone as an air pressure tire. The tire 100 of this embodiment inserts the elastic member 30 instead of the tube.

The jacket 10 may be an air pressure tire. The envelope 10 may be made of a rubber material. A tread may be formed on the outer surface of the outer casing 10. The envelope 10 may be in the form of a ring and open in the direction of the center. The inner space of the envelope 10 is also ring-shaped.

The elastic member 30 may be made of foamed synthetic resin, natural rubber, synthetic rubber, or the like. Further, the elastic member 30 may be a non-foamed material. The elastic member 30 may be manufactured by extrusion or by injection molding. The elastic member 30 may be a flexible material. The elastic member 30 may be in the form of a string having a certain length.

Examples of the synthetic rubber include styrene butadiene rubber (SBR), polychloroprene rubber (CR), acrylonitrile-butadiene rubber (NBR), isoprene-isobutylene rubber (IIR), butadiene rubber butadiene rubber (BR), isoprene rubber (IR), ethylene propylene rubber (EPR), polysulfide rubber, fluororubber, acrylic rubber acrylic rubber, EPDM, etc. may be used.

The tin-phase member 30 can be produced by foaming a rubber composition containing 49 parts by weight of recycled rubber, 49 parts by weight of EPDM and a foaming agent.

When the elastic member 30 is inserted into the outer skin 10, it is preferable that the elastic member 30 can give a cushioning feeling similar to air. As shown in Fig. 5, a groove 31 is formed in the elastic member 30. As shown in Fig. The groove 31 allows the contact member 40 to be inserted in the manufacturing process of the tire 100 in the future. The contact member 40 can be stably positioned by the groove 31 as shown in Fig. 7 (c).

The elastic member 30 can be inserted into the inner space (ring shape) of the shell 10. The elastic member 3 is in the form of a wire. The elastic member 3) can be produced by extrusion. At this time, it is preferable that the length of the elastic member 30 is longer than the length of the inner space of the shell 10. After the elastic member 30 is cut long, it can be compressed and inserted into the inner space of the shell 10. Thus, the elasticity of the entire tire 100 can be adjusted. For example, when the elastic member 30 of 2,100 mm is inserted into the inner space of the shell 10 of the length of 2,000 mm (the ring-shaped space), the extra elastic member 30 of about 100 mm is compressed, 10). Therefore, the density of the elastic member 30 inserted into the outer skin 10 is increased. As a result, the tire 100 becomes hard. That is, the hardness of the tire 100 can be increased.

The inner space of the envelope 10 is in the form of a circle. The length of the inner space of the shell 10 is calculated as the diameter * [pi].

The elastic member 30 has a diameter of about 20 mm to 40 mm and a length of about 2,000 mm.

On the other hand, when the elastic member 30 is made of foamed material, shrinkage occurs over time. The shrinkage varies depending on the temperature, but varies from 2 to 3% depending on the summer and winter. In winter, the length of the elastic member 30 is shorter than in summer. Such shrinkage occurs when the elastic member 30 is made of foamed rubber (or foamed resin) and bubbles (air) inside the foamed rubber (or foamed resin) are shrunk at a low temperature. Also, the rubber material itself shrinks depending on the temperature. According to the experiment, the elastic member 30 having a length of 2,000 mm at a room temperature of 20 degrees contracted to 1,980 mm at a temperature of minus 20 degrees. In addition, the length increased to 2,020 mm at the image 40 degrees.

Therefore, when inserting the elastic member 30 into the envelope 10 at room temperature (20 degrees Celsius), the shrinkage factor at low temperature should be taken into consideration. It is preferable to insert the elastic member 30 longer than the inner space of the shell 10 in response to the change of the external temperature and the contraction of the elastic member 30. [

On the other hand, when the elastic member 30 of 2,020 mm is inserted into the inner space of the casing 10 having the length of 2,000 mm, the extra elastic member 30 of about 20 mm is compressed and inserted into the inner space of the casing 10 do. Therefore, the density of the elastic member 30 inserted into the outer casing 10 does not greatly increase.

It is necessary to vary the stretching force of the front tire and the rear tire of the bicycle. In this case as well, it is possible to adjust the length of the elastic member 30 inserted into the tire 100.

Usually, the air pressure of the rear tire of the bicycle is higher than that of the front tire. This is because the rear tires bear the weight of the passenger more. In the present embodiment, the pressure of the front tire and the rear tire can be adjusted by inserting the elastic member 30 longer than the front tire in the rear tire.

The contact member 40 may be a spring. As shown in the plan view of FIG. 6, a body portion 41 partially opened and a handle portion 42. The contact member 40 may be completely circular. The inside diameter can be narrowed when the pull tab 42 of the fastening member 40 is pulled toward each other (pulled close to each other). Then, when the handle 42 is placed, the contact member 40 has an elastic force to return to the home position as shown in Fig. 6 due to the restoring force. 8 shows a process of pulling the handle portion 42 of the contact member 40 in the opposite direction and inserting the handle portion 42 in the direction of the center of the envelope 10. FIG. When the pull tab 42 is pulled, the outer diameter of the contact member 40 can be made smaller than the inner diameter of the shell 10. Normally, the outer diameter of the contact member (40) is larger than the inner diameter of the shell (10).

The contact member 40 is a good example of the spring as shown in Fig. However, if the elastic member 30 is pushed to the inner wall of the shell 10 in the process of FIG. 7 (c), various modifications are possible. For example, it may be a ring member having a diameter that is increased or decreased by using a screw. Alternatively, the contact member 40 may be a wire. At this time, the envelope 10 and the elastic member 30 may be bundled using a wire. By using the contact member 40, the elastic member 30 can be brought into close contact with the inner wall of the outer shell 10 in the horizontal direction.

A device for applying a force to the contact member 40 may be added so that the diameter of the contact member 40 is increased.

The weight 50 may be in the form of a ring or in the form of a plate. The weight 50 closely adheres the envelope 10 and the elastic member 30 in the vertical direction. The weight 50 may be a rubber material. The weight 50 may be an elastic pipe. The weight 50 may be a metal pipe.

The adhesive 20 is used to adhere the skin 10 and the elastic member 30. All known adhesives can be used. The adhesive 20 may be applied to the interior of the envelope 10. [ Further, the adhesive 20 may be applied to the surface of the elastic member 30.

The manufacturing method of the tire 100 that is not punctured by using the sheath 10, the adhesive 20, the elastic member 30, the contact member 40, and the weight 50 will be described. This will be described with reference to FIG.

S11 is a ring-shaped step of preparing a shell 10 having an opening 11 formed inside. The jacket 10 may be a general pneumatic tire. A tread is formed on the outer surface of the outer casing (10). The opening 11 is formed entirely, and is directed toward the center of the envelope 10 (inward). A wire bead is embedded in the sheath 10 adjacent to the opening 11. In addition, the outer casing 10 may have a nylon cord inserted therein.

Step S12 is a step of inserting the elastic member 30 into the inside of the envelope 10 with the adhesive 20 interposed therebetween. The elastic member 30 is a flexible material and may be a foamed resin. The adhesive 20 may be applied to the outside of the elastic member 30 or the adhesive 20 may be applied to the inside of the envelope 10. [ The length of the elastic member 30 may be a suitable length to enter the space inside the envelope 10. [ The elastic member 30 may be in the form of a ring.

When the elastic member 30 is inserted into the outer skin 10, there is a space S as shown in Fig. 7 (b). Therefore, the elastic member 30 and the sheath 10 are not completely in close contact with each other in the horizontal direction.

The space inside the shell 10 is ring-shaped. The elastic member 30 may be a foamed resin or a foamed rubber. The elastic member 30 is made of a flexible material so that it can be easily bent, and is elastic.

S13 is a step of providing a tight contact member 40 on the inner side of the shell so that the elastic member 30 is closely contacted with the inner wall of the shell. When the handle 42 of the contact member 40 shown in Fig. 6 is gripped and held inward, the inner diameter of the contact member 40 is narrowed. After the contact member 40 is positioned inside the outer casing 10, the knob 42 is restored. At this time, the resilient member 30 is pushed in the F1 direction with the restoring force as shown in Fig. As a result, the elastic member 30 and the envelope 10 are brought into close contact with each other, and the space S shown in Fig. 7 (b) disappears. Therefore, the elastic member 30 and the envelope 10 are bonded to each other in the horizontal direction F1 by the adhesive 20.

By the step S13, the envelope 10 pressed and deformed during transportation is fixed in the shape of a ring.

After step S12, the process of tightly attaching the outer skin 10 and the elastic member 30 can be performed. There are several methods for closely adhering the skin 10 and the elastic member 10 as follows.

First, the weight 50 can be placed on the outer surface of the shell 10. A force acts in the F2 direction (gravity direction) by the weight 50, and the envelope 10 and the elastic member 30 come into close contact with each other. The weight 50 may be in the form of a ring or in the form of a plate. In addition, the weight 50 may be formed by stacking a plurality of tires. After proceeding to steps S11 and S12, the step of placing the weight 50 may be performed.

It is preferable that the weight 50 is placed on the opening 11 of the shell 10. When the space between the openings 11 is narrow, it is easy to engage with the rim of the wheel.

The sheath 10 and the elastic member 30 are not adhered to each other by the adhesive 20 unless the weight 50 is placed on the outer surface 10. [

Second, the outer skin 10 and the elastic member 30 can be fixed with a forceps. The outer skin 10 and the elastic member 30 are brought into close contact with each other by the elastic forceps, and are adhered with an adhesive. Particularly, it is preferable to fix the opening portion 11 of the shell 10 with a forceps. The bead of the outer shell is coupled to the opening 11. [

Third, the envelope 10 and the elastic member 30 can be pressed and fixed by a press. The cover 10 and the elastic member 30 are brought into close contact with each other. Particularly, it is preferable to press the inlet portion of the envelope 10 with a press.

Fourthly, after step S12, the envelope 10 and the elastic member 30 can be wrapped and fixed in a band. The cover 10 and the elastic member 30 are brought into close contact with each other.

9 is a sectional view of a tire according to another embodiment of the present invention. The tire 200 of the present embodiment includes a casing 110 in which a ring-shaped inner space is formed; An elastic member (130) inserted into the inside of the shell (110); And a buffer space 132 formed between the distal end 111 of the shell 110 and the elastic member 130. The cushioning space 132 allows the distal end 111 of the shell 110 to move freely and to be removably attached to various rims. In addition, the outer covering 110 can be easily attached to and detached from the rim by the buffering space 132. The buffer space 132 may be formed by not applying the adhesive 120 between the outer skin 110 and the distal end 111 of the elastic member 130.

The rim of the bicycle varies from 16mm to 21mm in width where the tire is joined. The tire 200 of the present embodiment is filled with an elastic member 130 therein. Therefore, the fluidity (movement) of the end surface 111 of the envelope 110 and the attachment surface of the envelope 110 all on the surface of the elastic member 130 is limited. The tire 200 of the present embodiment has the buffer space 132 formed by preventing the distal end 111 of the shell 110 from being bonded to the elastic member 130.

Meanwhile, the elastic member 130 may be formed such that the groove 131 is exposed to the outside. The elasticity of the elastic member 130 is increased by the groove 131 when the tire 200 is joined to the rim of the bicycle. Thus, it is not only easy to bond to various width rims, but can also be applied to various sizes of rims.

The cushioning space 132 may be formed at every position of the ring-shaped tire 200, or may be formed at only a part of the region.

On the other hand, as shown in Fig. 10 (side view), the elastic member 230 may be a strip of a flexible material. Inside the shell, it forms a ring as shown in Fig. 10 (b). At this time, when the distal end of the elastic member 230 is cut perpendicularly to the longitudinal direction, a space 231 is formed as shown in FIG. 10 (b). This is because the diameter of the inner side and the diameter of the outer side are different from each other in the form of a ring. Such a space 231 may reduce the ride feeling after the tire is completed in the future.

11 (a), at least one end portion of the elastic member 330 is cut so as to be inclined with respect to the longitudinal direction. When the inclined surface 332 is formed at the distal end of at least one of the elastic members 330, when the elastic member 330 is ring-shaped as shown in FIG. 11 (b) The ends of which are engaged with each other. As a result, the elastic member 330 has a complete ring shape as shown in FIG. 11 (b). An inclined surface may be formed on both end portions of the elastic member 330. [

FIG. 12 is a flowchart of a method of manufacturing a tire according to another embodiment of the present invention, and FIG. 13 is a manufacturing process diagram of a tire according to still another embodiment of the present invention.

S21 is a step of preparing a shell 410 having a ring shape and an opening 411 formed inside. The envelope 410 may be a general pneumatic tire. A tread is formed on the outer surface of the outer casing 410. The opening 411 is entirely formed, and is directed toward the center (inside) of the envelope 410. A wire bead is embedded in the outer envelope 410 adjacent to the opening 411. In addition, the outer cover 410 may have a nylon cord inserted therein.

Step S22 is a step of inserting the elastic member 430 into the inside of the envelope 410 with the adhesive 420 interposed therebetween. The elastic member 430 is a flexible material and may be a foamed resin. The adhesive 420 may be applied to the outside of the elastic member 430 or the adhesive 420 may be applied to the inside of the envelope 410. [ The length of the elastic member 430 may be a suitable length to enter the space inside the envelope 410. The elastic member 430 may be in the form of a ring.

When the elastic member 430 is inserted into the outer envelope 410, there is a space S as shown in FIG. 13E. Therefore, the elastic member 430 and the envelope 410 are not completely in close contact with each other in the horizontal direction.

S23 is a step of pulling the outer surface of the outer envelope 410 with the elastic forceps 440 so that the elastic member 430 and the outer envelope 210 are brought into close contact with each other. The elastic forceps 240 have elastic force. The elastic forceps 440 are coupled to the outer surface of the envelope 410 to increase the adhesion between the envelope 410 and the elastic member 430.

In particular, the elastic member 430 has the groove 431 formed in a ring shape in the outward direction. The groove 431 of the elastic member 230 should be aligned outward. The elastic member 440 does not come in contact with the outer surface 410 of the elastic member 430 until the elastic member 430 comes into close contact with the elastic member 430. Thus, the grooves 431 are aligned and fixed in the direction in which they are initially engaged. In addition, the adhesive 420 is adhered and cured between the elastic member 430 and the outer skin 410.

The embodiments of the present invention have been described in detail above. The foregoing description is only an example and does not limit the claims of the present invention as examples. But falls within the scope of the present invention to an equivalent range based on the present embodiment. Modifications and additions by those skilled in the art from the above embodiments are also within the scope of the present invention.

10: Sheath 20: Adhesive
30: elastic member 40: tight contact member
50: Weight

Claims

A shell having a ring-shaped inner space formed therein;
And an elastic member inserted in the outer sheath and engaged with the outer sheath,
The length of the elastic member is longer than the length of the inner space,
Wherein the elastic member is formed by foaming synthetic resin or rubber.

The method according to claim 1,
Wherein the rubber is synthetic rubber or natural rubber.

3. The method according to claim 1 or 2,
Wherein the length of the elastic member is longer than the length of the inner space of the shell at 20 degrees Celsius.

3. The method according to claim 1 or 2,
And a buffer space is formed between the elastic member and the distal end of the shell.