JPH0669772B2 - Non-metal tire slipper - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-metal tire anti-skid device to be attached to an automobile tire.

[0002]

2. Description of the Related Art Metal chain tire anti-skid devices have various drawbacks such as dust due to road surface damage, noise and poor riding comfort. Many rubber tire slippers have been proposed. For example, Japanese Utility Model Publication 48-53003 and Japanese Utility Model Publication 57-
No. 161504 and No. 59-14247 discloses a mesh type anti-skid related to a net type, and No. 60-160212 discloses an anti-skid related to a ladder type or ladder type. There is. All of the anti-skid devices are considerably improved in riding comfort, noise and suppression of road surface damage as compared with a metal chain.

[0003]

However, the rudder type has strong anti-slip in the traveling direction and is excellent in braking and driving force, but weak in side skid restraint and intermittent in the circumferential direction, resulting in a comfortable ride. The points are insufficient. Further, since the straight-shaped members are arranged at right angles to the traveling direction, there is a drawback that if the mounting force is weak, it is easy to twist.

On the other hand, the net type is excellent in riding comfort and skid suppressing force because it is a continuous single pattern, but conversely is not sufficient in terms of braking force, driving force and climbing force. Therefore, the present invention provides a non-metal tire anti-skid device, which essentially belongs to the net type, but incorporates a ladder portion in the net type and fully utilizes the advantages of the net type and the ladder type without diminishing their advantages. That is the purpose.

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a non-metallic tire antiskid comprising a rubber net formed by stretching a rubber coating 13 having a core material 12 embedded therein in a mesh shape.
The following technical measures are taken to achieve the above-mentioned object. That is, according to the first aspect of the present invention, in the anti-slip area 9 located on the tread surface of the tire when the tire is mounted, the axial direction portion 14 perpendicular to the traveling direction and the inclined portion 16 inclined to the traveling direction. And hexagonal space 15
Ladder portions formed with are arranged regularly in the traveling direction, and the space 15 has a flat shape in which the traveling direction is short and the direction perpendicular to the traveling direction is long, and the axial portion 1
The width of No. 4 is wider than that of the inclined portion 16.

The present invention according to claim 2 is the same as the invention according to claim 1, further comprising a spike tool 26 embedded near an intersection 16B between the axial portion 14 and the inclined portion 16, The point is to add a point characterized in that the protruding reinforcing portion is formed integrally with the intersecting portion 16B on the outer side in the axial direction of the spike tool 26.

[0007]

Therefore, the axial portion 14 which is perpendicular to the traveling direction is subject to the suppression of slipping in the traveling direction (advantage of the ladder),
The inclined portion 16 inclined with respect to the traveling direction suppresses lateral slippage (advantage of net). In addition, the wide width of the axial portion 14 enhances the rigidity of the entire anti-skid device, and suppresses behavior such as deformation and twisting due to stress during braking, driving, and climbing, and significantly reduces transmission loss and damage of driving force. Can be made.

Since it has a more regular continuous pattern,
Since it comes in contact with the road surface as a continuous line, it has the net-type characteristic of good riding comfort. Therefore, it is possible to safely and comfortably drive a vehicle on a snowy road that changes every moment such as snowy, iced, wet, and dry roads.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 3, reference numeral 1 denotes a tire, which has a tread portion 2, both shoulder portions 3, both sidewall portions 4 and both bead portions 5 and has a toroidal cross-section, and both bead portions 5 are bead seats of a rim 6. It is fitted.

Reference numeral 7 indicates a disk. Figure 1
In (A), reference numeral 8 denotes a non-slip member according to the present invention, which is formed into a band shape in a deployed state, and is a main body portion 9 located on (corresponding to) the tread portion 2 in FIG. Both side edges 1 located on the part 4 respectively
It has 0 and 11.

As shown in FIGS. 1 (B) and 1 (C), the anti-skid 8 is covered with a rubber coating 13 made of a non-metallic material having elasticity on the core material 12, and the core material 12 extends in a net shape. ing. The core material 12 is made of a synthetic fiber such as polyester, nylon or rayon or a natural fiber in a mesh shape, and the covering material 13 coated on the core material 12 is made of rubber, synthetic resin or other non-metallic material having elasticity. It may be a mixture of short fibers (glass fiber etc.) if necessary. The core material 12 may be a rubber-coated cord, and in any case, it is desirable that the core material 12 has little stretchability (non-stretchability).

The main body 9 is a tire 1 as shown in FIG.
By arranging the axial direction portions 14 parallel to the axial direction of the tire 1 at intervals in the circumferential direction, the mesh portion (space) 15 is provided continuously in the circumferential direction (longitudinal direction of the belt). There is. On both side edge portions 10 and 11, an inclined portion 16 and an axial portion 16A, which are connected to the axial portion 14 in an oblique direction, are provided with an intersecting portion 16.
In this example, the hexagonal (game shell) mesh-like portions (spaces) 17 and 18 correspond to the shoulder portion 3 and the sidewall portion 4 by arranging in a row through B.
It is provided as a continuous structure (in the longitudinal direction of the belt).

That is, the anti-skid device of the present invention is a non-metallic tire anti-skid device comprising a rubber net formed by stretching a rubber coating 13 in which a core material 12 is embedded in a mesh shape.
When the tire is mounted, a non-slip region 9 located on the tread portion of the tire is joined to an axial direction portion 14 perpendicular to the traveling direction and an inclined portion 16 inclined to the traveling direction to form a substantially hexagonal shape. Ladder portions forming the space 15 are regularly arranged in the traveling direction, and the space 15 has a flat shape in which the traveling direction is short and the direction perpendicular to the traveling direction is long, and the width of the axial direction portion 14 is an inclined portion. It is formed wider than the width of 16.

Further, a spike tool 26 is embedded in the vicinity of the intersection 16B between the axial portion 14 and the inclined portion 16, and a protruding reinforcing portion is formed integrally with the intersection portion 16B outward of the spike tool 26 in the axial direction. ing. In the axial direction portion 14, the core materials 12 are parallel to each other and in a non-contact state, and are covered and stretched by the rubber coating 13 as shown in FIG. 1 (B).
6B is stretched without crossing, and the spike tool 26 is embedded in the cover 13 between the core members 12 of the anti-skid tool body 9.

Here, each mesh portion 1
5, 17 and 18 crossing angle A in the tire axial direction,
In B and C, the angle A of the main body 9 is the smallest, and the relationship of A <B <C is established. Each hexagonal mesh part 1
5, 17 and 18 are the largest in the main body portion 9 to increase the circumferential deformation amount, and the mesh portion 17 on the shoulder portion 3 is enlarged next to suppress the circumferential deformation amount to some extent. Even when the vehicle is curving, the deviation from the tire 1 is suppressed to prevent slippage, and the outermost mesh-like portion 18 is minimized to reduce the circumferential deformation amount. Disengagement is prevented.

The cross-sectional shape of the axial portion and the like described above is a substantially trapezoidal shape in which the tire surface side is wide and the non-tire surface side is narrow. Reference numeral 19 denotes a connecting lug, which has a trapezoidal cross section, has a connecting hole 20 as shown in FIG. 1, and is connected to each other by a connecting metal fitting 21 having a hook which can be engaged with and disengaged from the connecting hole 20. The connection hole 20 and the connection fitting 21 form a connection means 22.

Although the connecting means 22 is provided corresponding to both the shoulder portions of the tire, it may be provided corresponding to the tread portion. 23 is a side rope,
As shown in FIG. 3, the rope ends on the both outer sides of the rim 6 are detachably connected by the connecting tool 24 shown in FIG. And this side rope 23 and both side edge parts 10, 1
The non-slip member 8 is attached to the tire 1 by being connected to the mesh portion 18 in 1 by the connecting member 25 inside and outside in the radial direction.

In addition, as shown in FIG. 1 (C), the spike tool 26 has a collar portion 27, a body portion 28 having a smaller diameter than this, and an insertion portion 29. As shown in FIG. 14
It is provided at the intersection 16B and the like at the end of the. Further, 30 is a mounting hole, which is penetrated by the connection lug 19 and which is capable of detachably mounting one end of the connecting tool 25.

The anti-skid device 8 described above is manufactured as follows. In FIG. 4, reference numeral 31 is a preforming table, which has an engaging portion 32 for molding the hexagonal mesh portions 15, 17, 18 and the like. That is, in this embodiment, the engagement portion 32A corresponding to the axial portion 14, the engagement portion 32B corresponding to the inclined portion 16, the engagement portion 32C corresponding to the axial portion 16A, and the engagement corresponding to the connection lug 19. In this example, the portion 32D has a groove structure.
A string-shaped or rod-shaped net constituent material 33 covering the unvulcanized rubber coating 13 is stretched around the respective engaging portions 32A to 32D, and the mesh portions 15, 17, 18 of the anti-skid 8 are formed. A net 35 having a large number of mesh portions 34 corresponding to is formed on the forming table 31 in advance.

In this case, the engaging portion 32 is 2 as shown in FIG.
If the net constituent material 33 of the book is fitted into one groove and stretched around, or if each of the two net constituent materials 33 is fitted into the groove and stretched around as shown in FIG. In the cross portion of the reference numeral 35 ′ shown in FIG.
Alternatively, two net constituent materials 33 may be fitted in the groove in two steps and stretched in a crossed state.

In any case, one or a plurality of net constituent materials 33 are stretched around the engaging portion 32 shown by the groove of the preforming table 31 in the first embodiment, and at the appropriate positions of the parallel portion or the cross portion, For example, the tape 36 shown in FIG. 8, the adhesive agent 37 shown in FIG. 9, the fasteners 38 shown in FIG. 10 and the like are coupled to each other, and the nets 35 are molded on the preforming table 31 so as not to be separated from each other. To do.

In this case, the tape 36 may be only a rubber tape, but it may be a tape made by adhering a thin unvulcanized rubber sheet to a fiber such as nylon or polyester. A tool is prepared by applying an adhesive to a part of the covering material 13. It is also possible to press them together with each other and to bond them to each other. The point is that they can be molded by the preforming table 31 so that the mesh portions 34 of the net 35 stretched around the preforming table 31 do not come apart from each other. .

The engaging portion 32 of the preforming table 31 is shown in FIGS.
In the embodiment shown in FIG. 7, the groove shape is used.
As shown in FIG. 2, the engagement portion 32 may be formed by screwing or driving the projection 36 on the preforming table 31 so that the mesh portions 15, 17, 18 can be formed. In the case of the engaging portion 32 shown by the projection 36, the net constituent material 33 is stretched around to form the mesh portion 34 as shown in FIG. 11, and the parallel portion or the cross portion is exemplified in FIGS. 8 to 10. Combine in the same way.

The engaging portion 32 may be a combination of a groove and a protrusion as shown in FIG. In any case, the net forming material 33 is stretched around the preforming table 31 to form the net 35 having the mesh portion 34 corresponding to the shape of the antiskid 8, and after the net 35 is removed from the forming table 31. 14, the molding groove 3 of the heating press die 37 corresponding to the shape of the anti-skid 8 as shown in FIG.
8, the net 35 is loaded and set as shown in FIG.
Next, as shown in FIG. 16, the upper press die 39 is clamped, and heating and vulcanization are performed to integrally form each lug portion having a trapezoidal cross section as shown in FIG. The mounting holes 20, 30 and the like are formed by pins 39A formed on the upper mold 39.

After the press molding, it is removed from the press die as usual. In the above embodiment, the number and the cross-sectional shape of the net constituent material 33 are arbitrary, and therefore the cross-section may be trapezoidal, elliptical or quadrangle other than the circular shape in the drawing. Further, the shape of the groove 38 of the press die 37 is determined by the cross-sectional shape of each lug portion of the anti-skid 8, and the shape of the engaging portion 32 of the preforming table 31 is also determined by the shape of the slip to be manufactured. It is set according to the mesh shape of the stopper 8, and therefore the shape, arrangement, etc. of the mesh portion 34 may be other than those shown in the drawing.

[0026]

As described above, since the anti-skid device of the present invention has the axial direction portion which is perpendicular to the traveling direction in the net structure, the braking, driving (traction) and climbing slopes possessed by the conventional ladder-type anti-skid device. It exerts a force and, further, has an inclined portion that is inclined with respect to the traveling direction, and therefore exerts a restraint force against skidding. In addition, since it is basically a continuous net shape, it also has the original riding comfort of the net. Furthermore, since the axial part is designed to be wide, it has a highly rigid structure in which two rubber coatings with embedded cores are arranged. Therefore, it is possible to bite snow and ice into the hexagonal space. It has sufficient durability even when it is crowded, and the traction force is improved so that it can run smoothly. In addition to the high rigidity, the wide axial portion has a structure that is continuous with the adjacent inclined portions, so that it is difficult to deform or twist the stress acting in the traveling direction. Further, spikes can be fixed at arbitrary positions on the wide axial portion, and the arrangement of a plurality of rows can significantly improve the ability to traverse the icy road surface. This spike pin has good fixing stability, spike pin collapse,
No rubber cracks were generated from the spike pins.

Further, since the substantially hexagonal space has a flat shape, the axial direction portion is lengthened as compared with a so-called regular hexagonal ladder portion to improve braking, driving and climbing force, while pitching in the same direction. Can be made finer and the riding comfort can be improved. Moreover, in the present invention according to claim 2, since the projecting reinforcing portion is provided at the intersection of the axial portion 1 and the inclined portion, the connecting reinforcement of the end portions of the two inclined portions connected to the axial portion is provided. It is possible to prevent the occurrence of cracks at the intersection due to tearing force, etc. Moreover, this protruding reinforcement absorbs almost all the impact acting on the spike tool inserted at the intersection, and the axial portion and the inclined portion. It is possible to prevent the impact on the like, and it is possible to improve the durability of the anti-skid when the spike is provided.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (A) is a developed plan view,
(B) is XX of FIG. 1 (A), (C) is Y- of FIG.
It is a Y sectional view.

FIG. 2 is a side view of a tire mounted state.

FIG. 3 is a sectional view taken along line S-S in FIG.

FIG. 4 is a plan view of a preforming table.

5 is a sectional view taken along line ZZ of FIG.

6 is a sectional view taken along line ZZ of FIG. 4, showing another first example.

FIG. 7 is a cross-sectional view of a portion 35 'of FIG.

FIG. 8 is a sectional view taken along line ZZ in FIG. 4, showing another second example.

9 is a sectional view taken along line ZZ of FIG. 4, showing another second example.

10 is a sectional view taken along line ZZ of FIG. 4, showing another second example.

11 is a plan view showing another example of FIG. 4. FIG.

12 is a sectional view taken along line ZZ of FIG.

FIG. 13 is a sectional view taken along line ZZ in FIG. 11, showing another example.

FIG. 14 is a plan view of a vulcanizing press.

FIG. 15 is a cross-sectional view before vulcanization.

FIG. 16 is a cross-sectional view during vulcanization.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tire 2 Tread part 8 Anti-slip tool 9 Anti-skid tool body part 12 Core material 13 Rubber coating body 14 Axial direction part 15 Space 16 Slope part 26 Spike tool

Claims (2)

[Claims] 1. A rubber coating body (1) in which a core material (12) is embedded.
A non-metallic tire anti-skid comprising a rubber net formed by stretching 3) in a mesh shape, in a non-slip region (9) located on the tread surface of the tire when the tire is mounted, with respect to the traveling direction. Ladder portions in which a vertical axial direction portion (14) and an inclined portion (16) inclined with respect to the traveling direction are joined to each other to form a substantially hexagonal space (15) are regularly arranged in the traveling direction. Further, the space (15) has a flat shape in which the traveling direction is short and the direction perpendicular to the traveling direction is long, and the width of the axial portion (14) is formed wider than the width of the inclined portion (16). Non-metal tire anti-skid device characterized by being. 2. A rubber coating body (1) in which a core material (12) is embedded.
A non-metallic tire anti-skid comprising a rubber net formed by stretching 3) in a mesh shape, in a non-slip region (9) located on the tread surface of the tire when the tire is mounted, with respect to the traveling direction. Ladder portions in which a vertical axial direction portion (14) and an inclined portion (16) inclined with respect to the traveling direction are joined to each other to form a substantially hexagonal space (15) are regularly arranged in the traveling direction. Further, the space (15) has a flat shape in which the traveling direction is short and the direction perpendicular to the traveling direction is long, and the width of the axial portion (14) is formed wider than the width of the inclined portion (16). Further, a spike tool (26) is embedded near the intersection (16B) of the axial portion (14) and the inclined portion (16), and the spike tool (2)
6) A non-metallic tire anti-skid device, characterized in that a protruding reinforcing portion is formed integrally with the intersecting portion (16B) outward in the axial direction of 6).