JPH03182817A - Tire slip stopper winding body manufacturing and winding body - Google Patents

Abstract

PURPOSE:To locate core materials at a prescribed position regardless of thermal contraction at the time of curing by inserting the inner periphery of bent parts in non- cured linear members inserted where the core materials are inserted into side recess parts while winding them around pins protrudingly provided inside the side recess parts of a mold. CONSTITUTION:A forming mold 2 is provided with recess parts 11 in a large number of parallel ladders which form a ladder part of a winding body 1, and side recess parts 12 which communicate with the ladder recess parts 11 which form both sides parts. Besides, pins 14 which form pin holes for striking-in spike pins are protrudingly provided on the respective ladder recess parts 11. With this constitution, pins 17 for molding holes are disposed at the bent parts in linear recess parts 12a of the side recess parts 12. Namely, the pins 17 are disposed more deeply inside the pin parts 11 than lineal members 15 where core materials 8A, 8B are inserted to come into contact with the inner peripheries of the bent parts in the lineal members 15, by which the pins are used for both positioning and guiding. Then the lineal members 15 are inserted into the ladder recess parts 11 and the side recess parts 12 respectively while winding them around the respective pins 14, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a tire skid device that is wrapped and attached to a tire of a passenger car or the like when driving in a snowy waterway, and a wrapped body.

(Prior art) A tire skid device consists of one or more winding bodies wrapped around the outer circumferential surface of the tire in the circumferential direction, and elastic rings and traction such as fastening traction are attached to both sides of the winding body through metal fittings. It is configured to connect the rings and be attached to the tire.

In the wrapped body, ladder portions are arranged in the center in the width direction at regular intervals in the circumferential direction, and there is a space between the ladder portions, and the ladder portion is placed at the outermost end in the width direction of the ladder portion and the space. ! ! A sticky mesh-like side portion is formed, and these are integrally molded with a non-metallic material 11 such as rubber or synthetic resin, and a string-like reinforcing core material made of synthetic resin or the like is provided on the ladder portion and the side portion. is buried.

The production of this wound body is as shown in Fig. 7.8 (1.
(See Figure 5), ladder recess 11, side four parts 12 and 12 on both sides.
and in the mold 2 with the bin 14 in the ladder quadrant 11,
An unvulcanized filament 15 through which the core material 8 has been inserted is inserted, the mold 2 is closed, and vulcanization is performed.

The wire material 15 is spirally wound to form a loop portion R, and this loop portion R is inserted into the two four ladder parts 11 and the side four parts 12 on both sides sandwiching the space 1 or 2, and vice versa. A core material 8 is embedded over the entire length of the wound body by forming a loop portion R wound in the same direction and combining a second grained wire material 15 with the loop portion R shifted by half a pitch.

(Problem to be Solved by the Invention) In the prior art shown in FIG. When the core material 8 contracts due to heat, the core material 8 is displaced to take the shortest distance as shown by the two-dot chain line in FIG. 7, and the cross section of the manufactured wound body becomes as shown in FIG. , core material 8
may move from its original position (solid line position) to a position close to the four-part wall (double-dashed line position) and be exposed.

This may occur at most of the bent portions of the filament 15, especially at the outermost end in the width direction where the element ring retainer 6
When a load is applied to the wrapped body while running, the exposed core material 8 of the hook portion may rub against the heavy ring engagement fitting 6, or the core may become damaged due to slight wear. The material 8 may become sheathed, causing wear and peeling of the core material, which may progress from cutting of the core material to cutting of the wound body. In addition, the exposure of the core material 8 at the bent portions of the core material other than the hooking portions also reduces the durability of the winding (four bodies).

The first object of the present invention is to provide a bin I7 for positioning the filament +, 1' 15 at the bent portion of the linear concave portion 12a of the side concave portion 12 of the mold 2, and to insert the filament material I5. When inserting into the side recess 12, by wrapping the inner circumferential side of the bent part around this positioning pin 17, the core material 8 can be positioned at approximately the center of the cross section of the linear recess 12a even after vulcanization. To provide a method for manufacturing a wrapped body of a tire anti-slip device that can be positioned.

A second object of the present invention is to provide a reinforcing material 0 that engages the core material 8 and the element ring engagement fitting 6 in the tensile direction on the hooking portion 5b of the mesh side portion 5 of the wrapped body l. To provide a wrapped body of a tire slip 1L tool which can prevent a core material 8 from being damaged by a heavy ring engagement tool 6.

(Means for Solving the Problems) A specific configuration for solving the problems in the method of the present invention is such that both side ends of a large number of parallel hollow recesses 11 are connected to mesh-like side recesses 12.
The unvulcanized non-metallic wire material 15 with the core material 8 inserted is inserted into the mold 2 which is in communication with the ladder recess 11 and the four side parts 12 on both sides of the ladder recess 11 while being bent. In the method for manufacturing a wrapped body of a tire non-slip device, in which the non-metallic material is filled into 11 and 12, the mold 2 is closed, and vulcanization is performed, the unvulcanized wire material 15 is placed on the inner peripheral side of the bent portion. can be wrapped around a bottle 17 protruding into the side recess 12.

A specific aspect of the present invention to solve the problem is a non-metallic material wrapped body 1 that is circumferentially wrapped around the outer circumferential surface of the tire.
has a ladder part 3 arranged in the center in the width direction at regular intervals in the circumferential direction, and connects both ends of the ladder part 3 in the width direction, and has a hook part 5b for the ring retainer 6 at the outermost end. A reinforcing core material 8 is provided on the ladder portion 3 and both side portions 5.
In the wrapped body of the tire anti-skid tool, the ladder portion 34 of the embedded core material B is attached to the hooking portion 5h of the mesh side portion 5! '
A hole 9 is formed in the direction across the core material 8, and a reinforcing material 1 is formed in the hole 9 to engage the core material 8 and the ring-engaging metal fitting 6 in the tensile direction.
0 is the installation number or point.

(Function) The linear recess 12 of the side recess 12 of the mold 2. A positioning bin 17 is protruded from the bent portion of J, and the wire material 15 into which the core material 8 has been inserted is looped and inserted into the ladder recess 11.
When inserting into the ladder recess 11 and the side recess 12, the wire material 15 is wound around the positioning bin 17 and placed along the bent part of the linear recess 12a and at approximately the center position in cross section. 12 is filled with a non-metallic material that fills the space around the wire material 15, and then the mold 2 is closed and vulcanized.

When the wound body 1 formed by the above manufacturing method is taken out from the mold 2, a hole 9 is formed in a portion corresponding to the positioning bin I7. When a bottle-shaped reinforcing material IO is buried in the hole 9 formed in the hooking portion 5b located at the sidemost end, this reinforcing material IO is inserted into the hooking portion 5.
It is located between the core member 8 and the ring-engaging metal fitting 6 hooked to b, and protects the core member 8 from the ring-engaging metal fitting 6.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 5, reference numeral 1 denotes a wrapping body placed in a mold 2, and one or more wrapping bodies 1 are wound around the outer peripheral surface of the tire in the circumferential direction. The circumferential ends are connected via a connecting fitting, and both widthwise ends are pulled radially inward by an elastic ring and a fastener ring through a ring or hook-shaped heavy ring retainer 6, and the tire is attached to the tire. It is mounted against the

The wrapped body I is mainly composed of a non-metallic material such as rubber or synthetic resin, and has ladder portions 3 arranged at regular intervals in the circumferential direction at the center in the width direction, and spaces 4 are formed between the ladder portions 3. There are linear parts 5a on both sides of the ladder part 3 and the space 4 in the width direction.
A side portion 3 is formed in which the left and right side portions 5A and 5B are encircled in a mesh pattern, and the linear portions 5a of the left and right side portions 5A and 5B connect the ladder portion 3, and the outermost end is a heavy ring retainer fitting for hooking an elastic ring and a fastening traction device. 6, the part where the hook part 5b is formed has a diamond shape, and one side part 5A
A triangular portion is formed between the diamond-shaped portions.

Spike bins 7 are provided on both sides of the ladder portion 3 of the wrapped body 1 in the width direction.
is buried. This spike bottle 7 is either driven in after the winding body is formed or embedded during the molding of the winding body, and is made of metal or reinforced synthetic resin.

A reinforcing core material 8 made of nylon or other synthetic resin formed into a string shape is embedded in the ladder part 3 and side part 5 of the wrapped body l.
There is. Two core materials 8 are used for one wound body L, and one core material 8A is spirally wound clockwise to form a large number of loop portions R in the circumferential direction. , each loop portion R surrounds every other space 4, and the other core material 8B
is spirally wound counterclockwise to form a large number of loop portions R in the circumferential direction, and each loop portion R surrounds a space 4 that is not surrounded by the loop portion R. Therefore, in one ladder part 3, the loop parts RA and R of the two core materials 8A and 8B are
B exists.

Loop parts RA and R surrounding the space 4 of each core material 8A and 8B
B surrounds the spike bin 7 around each space 4, and thus the loop portion RA surrounding one space 4
and a loop portion R0 surrounding the space 4 adjacent to the space 4.
are parallel between the spike bins 7 in the ladder section 3,
The spike pins 7 intersect S on both sides in the width direction of the wound body, and when a tensile force is applied to the loop portion RARB, it is canceled out through the spike pins 7.

Each core material 8A, 8B is bent between the loop portions R and buried in the linear portion 5a of the left and right side portions 5, and in the bent portions such as the hanging portions 5b of the linear portion 5a, the core materials 8A and 8B are The material 8 is also located along it, and the cross-sectional shape of the linear portion 5a is as shown in FIG.
It is located almost in the center.

At each bent portion of the linear portion 5a, the ladder portion 3 is lower than the core material 8.
A hole 9 is formed on the side. This hole 9 is provided with a bottle-shaped reinforcing member 10 made of synthetic resin or rubber harder than the material constituting the wrapped body 1. This reinforcement material 10
is arranged in a direction transverse to the core material 8, that is, in a direction substantially parallel to the axis of the spike bin 7 when the wound body 1 is unfolded, and is in contact with the core material 8. Therefore, even if the hook part 5b is pulled through the heavy ring protector fitting 6, the reinforcement 1Al is not applied in the pulling direction.
O engages with the core abutment 8. This reinforcing material 10 may be placed on the entire bent portion, but may also be placed only on the hooking portion 5b.

Next, a method of manufacturing the wound body 1 will be explained.

The molding die 2 has a large number of parallel hollow recesses 11 forming the ladder section 3 of the wrapped body 1, and side recesses 12 communicating with all four ladder sections 11 and forming both side sections 5A and 5B. 2, and the side Ul11 portion 12 has four rod-like portions 12. corresponding to the linear portions 5a. 1 is formed in a mesh shape. In each of the two recesses 11 in the width direction (+!
4 (stay 1.) is provided protrudingly. In addition, if the spike bin 7 is included for moldability, the spike bin 14 itself becomes the spike bin 7, and it is attached to the mold so that it can be released.
j.

Core t I8 constitutes the winding body 1 +KFJ,,! -same-
V, is the same quality 42 vulcanized rf jacket, and is made of synthetic resin.
1. The wire material 15 is inserted into one of the four ladder parts 1 from the linear recess 12a of one side part 12.
1, then insert it into the adjacent ladder recess 11 through the linear recess 12a of the other side part 12 while winding it in a spiral shape, and then insert the loop part RA surrounding one space 4.
7, and then insert the first and third rudders into the rudder recess 11 in one side part 12, and then repeat the sequence of inserting the rudder into the rudder recess 11 one in front.

Similarly, the wire material 15 of the second day is attached to the other side part 12.
- put it into the rudder recess 1.1, counterclockwise +i so as to surround the space 4 that is not surrounded by the single-ended wire material 15.
1) Wrap it spirally to form a loop part RB, push it from one side part 12 into the rudder recess 11 of the V4, return it to the other (n) recess 12, and turn it back 1. When the wire material 15 is inserted into the ladder recess 11, its loop portion R
Hang and tension the bottle 14 so that the inner circumferential surface of the O-loop contacts the beads 14a and 2, draw a straight line between the bottles 14, and place it in the center of the concave part 11. The filament of the book +415.15 is from the external force Noda Gate 11 from Bi/14
It intersects I on both sides of the ladder recess 11 and overlaps (intersects S) at the - part of the other side part 12. Taking these into consideration, the auxiliary filling material 16 is inserted into the ladder recess 11 and the side part at -. Fill to 12.

A pin 17 for forming the hole 9 is provided at the bent portion of the bent linear recess 12a of the side portion 12 of the mold 2.

This bin 17 has an axis parallel to the bin 14 by one axis,
When viewed from the cross section of the linear concave portion 12a, the bottle 17 is placed over approximately medium heat (1'1 and wrapped between the loop portions R of each wire material 15, i.e., L'), and the bottle 17 is connected to the four ladder parts 11 from the wire material 15. Side 0. It is located at the second position and comes into contact with the inner periphery of the bent portion of the wire material 15, and also serves as positioning, winding Z, and first guide, and the wire material 15? is bottle 17. It is inserted into the four rudder parts 11 and the lateral parts 12 while wrapping around +4 ↓J.

Before and after pushing the filament 15 into each of the four parts 11 and 12, the auxiliary filling material 16 is filled, and then the mold 2 is closed and heated and pressurized to perform vulcanization molding. At this time, the core material 8 tries to shrink due to heat, but since it is hooked on the bottle 14 in the four ladder parts 11, and hooked on the bottle 17 in the side part 12, its position is different from the bottle. 17, but never away from it, and is arranged closer to the center of the ladder recess 11 and the linear recess 12a.

Rolling after vulcanization;] When the body 1 is not removed from the mold 2,
4.17, and the pin holes 13 and 9 are now drilled. A spike bottle 7 is driven into the bottle hole 13, and the hole 9 may be left alone or a reinforcing material 10 may be inserted. However, even when the reinforcing material 10 is not inserted, it is preferable to fill the hole 9 with rubber, etc. to prevent stones and sand from entering the hole 9.

FIG. 6 shows a second embodiment of the present invention, in which, in addition to the diamond-shaped portions, tortoise-shell-shaped portions that are continuous with the upper portion 3 are formed on the side portions 5 on both sides of the 31 body 1. A core material 8 is also embedded in this hexagonal shaped portion.

2 wooden core materials 8A, 8 [1 is a 2 wooden core material 8A which extends in the opposite direction from the connecting band 19 at the end of the winding body 1'' and is wound in a reverse spiral shape. , 8B each loop part RA, RB
surrounds the two spaces 4 and one hexagonal hole 20 on both sides 5, and is wrapped around the spike bin 7 of the ladder section 3 on the inner peripheral surface of each loop section RA, RB.

Further, holes 9 are formed in each bent portion of the linear portions 5a of the both side portions 5. This hole 9 is a hole formed by a bottle (bottle 17 in the first embodiment) provided in the mold in order to arrange the core material 8 approximately at the center of the cross section of the cotton-like portions 5, 1, and the hole 9 remains as it is. There are cases in which the reinforcing +J' 10 is inserted into at least the hole 9 of the hooking part 5b. This hook part 5b
is a folded db portion with a larger radius of curvature than in the first embodiment, the core material 8 is guided by a plurality of bottles, and a reinforcing material 10 is embedded in each of the plurality of holes 9.

The manufacturing method of this wrapped body 1'' is as follows:
The process can be carried out in the same manner as in the first embodiment, except that the space 4 surrounded by the hole 9 and the number of bottles for forming the holes 9 are different.

Incidentally, in the above embodiment, two wooden core materials 8 [and filament materials 15] were used for one wrapped body 1, but one
The core material 8 of the book may be used by U-turning the core material 8 at one end of the connecting band 19, or a plurality of core materials 8 may be bundled together.

(Effect of the invention) According to the method of the present invention detailed above, the unvulcanized wire material 15
Since the inner circumferential side of the bent portion is wrapped around the bottle 17 protruding from the linear recess 12a of the side ear part 12 and inserted into the side ear part 12, the core material 8 undergoes heat shrinkage during vulcanization. Even if the linear recess 12a is bent, it can be positioned at approximately the center of the cross section, and it is possible to prevent displacement such as hitting the wall surface of the bent portion of the linear recess 12a.
The core material 8 can be prevented from being exposed from the linear portion 5a.

Further, the wrapped body 1 of the present invention has a hook portion 5b of the mesh side portion 5.
In addition, a hole 9 is formed on the side of the ladder portion 3 from the core 8 and in a direction across the core material 8, and a reinforcing material 10 is embedded in this hole 9, so that a thread ring engagement tool is attached to the hook portion 5b. Even when the core material 8 is engaged and pulled, the core material 8 does not come into contact with the thread ring engagement fitting 6 and come off, and the core material 8 is connected to the linear portion 5a.
can be held at approximately the center position of the cross section, which makes it possible to improve durability.

[Brief explanation of drawings]

1 to 5 show a first embodiment of the present invention, FIG. 1 is a cross-sectional plan view of the wound body in the mold, and FIG. 2 is a plan view of the wire material inserted into the mold. Figure 3 is a sectional view taken along the line ■-■ in Figure 1, Figure 4 is a sectional view of the hooking part of the winding body, and Figure 5 is a sectional view taken along the line ■-■ in Figure 1.
Figure 6 is a plan view of the wound body of the second embodiment, Figure 7.8 shows the prior art, and Figure 7 shows the wire material inside the mold. FIG. 8 is a sectional view taken along the line ■--■ in FIG. 7. 1- Wrapping body, 2- Mold, 3- Ladder part, 4- Space, 5
- Side part, 5a - Linear part, 5b - Hanging part, 6 - Thread ring engaging fitting, 8 - Core material, 9 - Hole, 10 - Reinforcement material, 11 Ladder recessed part, 12 - Side part, 12a - Linear recess, ■5 wire material,
16 - auxiliary filling material, 17 = bottle. 6

Claims (2)

[Claims] (1) A core material (
While bending the unvulcanized non-metallic material wire material (15) inserted through the ladder recess (11) and the side recesses (
12) and then insert it through all the recesses (11) and (12).
) is filled with a nonmetallic material, the mold (2) is closed, and vulcanization is performed. A method for producing a wrapped body of a tire anti-slip device, characterized in that the side thereof is wound around a pin (17) that protrudes into a side recess (12). (2) A non-metallic material wrapping body (1) that is circumferentially wrapped around the outer circumferential surface of the tire includes a ladder part (3) arranged at a constant interval in the circumferential direction at the center in the width direction, and a ladder part (3) arranged at regular intervals in the circumferential direction at the center in the width direction. and a mesh-like side part (5) which connects both ends in the width direction and has a hook part (5b) for the ring-carrying fitting (6) at the most side end, and includes a ladder part (3) and both sides. In the wrapped body of the tire anti-slip device in which the reinforcing core material (8) is embedded in the portion (5), the embedded core material (
A hole (9) is formed in the ladder part (3) side of 8) in a direction that crosses the core material (8), and the core material (8) and the ring engagement fitting (6) are inserted into this hole (9) in the tensile direction. A wrapped body of a tire anti-slip device, characterized in that it is provided with an engaging reinforcing member (10).