WO2022190789A1

WO2022190789A1 - Tire non-skid device

Info

Publication number: WO2022190789A1
Application number: PCT/JP2022/006021
Authority: WO
Inventors: 茂田辺
Original assignee: 株式会社カーメイト
Priority date: 2021-03-08
Filing date: 2022-02-15
Publication date: 2022-09-15
Also published as: JP2022136456A; JP7558089B2

Abstract

[Problem] To provide a tire non-skid device that is compatible for mounting on a wide range of tire sizes and has a structure that readily secures mounting stability. [Solution] A tire non-skid device 10 has a structure which includes tread sections 12 that are placed on the tread surface of a tire 50, and inner-side leg sections 14 and outer-side leg sections 16 disposed at predetermined intervals in pluralities along the lengthwise direction of the tread sections 12 and provided extending in the width direction, and in which by the take-up winding of a cable 22, the tread sections 12, inner-side leg sections 14, and outer-side leg sections 16 are brought into tight contact with the tire 50. The tire non-skid device is characterized in that: the tip-end portions 14a of the plurality of inner-side leg sections 14 are disposed spaced apart at preset intervals with respect to a cable 20 having a preset length; and the tip-end portions 16a of the plurality of outer-side leg sections 16 have insertion pieces 16a2 through which the cable 22, which can be take-up wound by a winding means 18, can be inserted.

Description

tire anti-skid device

The present invention relates to a tire anti-slip device, and more particularly to a tire anti-slip device that is versatile and suitable for use with a wire tightening structure.

The applicant of the present application has proposed structures such as those disclosed in Patent Document 1 and Patent Document 2 as a tire anti-slip device having a wire tightening structure. The tire anti-slip devices disclosed in Patent Documents 1 and 2 have a tread portion that contacts the tread surface of the tire and leg portions that extend from the tread portion and contact the side portions of the tire. It has a basic form of being equipped. In the tire anti-skid device having such a basic configuration, the legs that are located inside and outside the tire are provided with wires having a predetermined length, and the wires are provided at the ends of the tread portion. By winding up, the tire anti-slip device is configured to be in close contact with the tire.

JP 2015-112982 A JP 2019-77284 A

Certainly, with the structure disclosed in Patent Document 1 and Patent Document 2, it is believed that the tire anti-skid device can be brought into close contact with the tire to exert its effect. However, in the tire antiskid device having such a tightening structure, the mounting state is adjusted by the gap at the end of the tread portion. For this reason, depending on the size of the tire, there may be a large gap at one point when the tire is mounted. In addition, since the wire is wound by the winding means provided on the outside of the tire, both the inside and outside of the tire are tightened. may be difficult to secure.

Therefore, it is an object of the present invention to provide a tire anti-slip device that has a structure that allows for a wide range of tire sizes that can be mounted, realizes equalization of gaps in the tread portion, and easily secures mounting stability.

A tire anti-slip device according to the present invention for achieving the above object comprises a tread portion arranged on a tire tread surface of a vehicle; A tire anti-slip device having an inner leg portion and an outer leg portion extending to the tire, and having a structure in which the tread portion, the inner leg portion, and the outer leg portion are brought into close contact with the tire by winding a wire wherein the distal ends of the plurality of inner legs are arranged with a predetermined spacing from a wire having a predetermined length, and the distal ends of the plurality of outer legs are wound. It is characterized by having a wire insertion part through which a wire that can be wound by means can be inserted.

Further, in the tire antiskid device having the above characteristics, the wire for fixing the tip of the inner leg and the wire for inserting the tip of the outer leg are attached to the portions located between the legs. A tubular member is disposed, and the length of the tubular member disposed on the wire passing through the distal end of the outer leg is the length of the tubular member disposed on the wire fixing the distal end of the inner leg. It is better to set it shorter than the By having such characteristics, it is possible to install the tire antiskid device even on a tire having a size smaller than the standard size.

Furthermore, in the tire anti-slip device having the above characteristics, the length of the tubular member attached to the wire passing through the tip of the outer leg is set to the smallest tire size among the tire sizes assumed to be attached. It is desirable to determine the distance between the distal ends of the outer leg portions when worn. By having such characteristics, it is possible to determine the lower limit of the tire size that can be properly mounted.

According to the tire anti-slip device having the features described above, it is possible to increase the range of tire sizes that can be mounted. Moreover, the tightening force is not dispersed, and it is easy to secure mounting stability.

It is a perspective view of the outside side which shows the state where the tire skid prevention device concerning an embodiment was attached to a tire. It is a perspective view of an inside side which shows a state where a tire was equipped with a tire antiskid device concerning an embodiment. It is a figure which shows the state which temporarily attached the tire anti-slip apparatus which concerns on embodiment to the tire. It is a figure which shows the state which mounted|wore the tire smaller than a reference size with the tire anti-slip apparatus which concerns on embodiment. It is a figure which shows the state which mounted the tire antiskid apparatus which concerns on embodiment on the tire larger than a reference size. FIG. 5 is a partial cross-sectional view showing changes in the positions of the tread portion, the inner leg portion, and the outer leg portion that occur when the tire antiskid device is mounted on tires of different sizes.

Hereinafter, embodiments of the tire anti-slip device of the present invention will be described in detail with reference to the drawings. First, with reference to FIGS. 1 and 2, the basic configuration of the tire antiskid device according to this embodiment will be described. In the drawings, FIG. 1 is a perspective view showing the outer (front) side of a tire equipped with a tire antiskid device, and FIG. 2 is a perspective view showing the inner (back) side of the tire.

[Constitution]
The tire anti-skid device 10 according to this embodiment is basically composed of a tread portion 12, an inner leg portion 14, an outer leg portion 16, a winding means 18,

wires

20 and 22, and

tubular members

24 and 26. there is The tread portion 12 is a portion that is arranged on the tread surface of the tire 50 when the tire antiskid device 10 is mounted on the tire 50 of the vehicle. The tread portion 12 of the tire antiskid device 10 of the example shown in FIGS. 1 and 2 has a mesh pattern surface, and is configured to have a plurality of studs 12a for exerting an antiskid effect on the outer surface.

In the tire anti-slip device 10, a plurality of tread portions 12 having such a configuration are arranged so as to be wound around the tread surface of the tire. The adjacent tread portions 12 are engaged via an inner leg portion 14, an outer leg portion 16, and

wires

20, 22, which will be described later in detail.

The inner leg portion 14 has a belt-like pattern extending in the width direction of the tire 50 (the direction intersecting the winding direction of the tire anti-slip device 10) with the tread portion 12 as a base point, and the tire anti-slip device 10 is mounted on the vehicle. It is a portion that is arranged so as to wrap around the inner side surface of the tire 50 when mounted on the tire 50 .

Like the inner leg portion 14, the outer leg portion 16 has a belt-like pattern extending in the width direction of the tire 50 with the tread portion 12 as a base point. It is a part arranged so as to wrap around the outer side surface of the tire 50 .

In the example shown in FIGS. 1 and 2, two tread portions 12 are connected as a pair of non-slip patterns 30 via the inner leg portion 14 and the outer leg portion 16, and two pairs of the non-slip patterns 30 are One tire antiskid device 10 is configured by combining a total of four pairs. When connecting consecutively arranged non-slip patterns 30, the inner leg portions 14 and the outer leg portions 16 of the adjacently arranged non-slip patterns 30 are engaged.

Wires

20 and 22 are passed through the inner leg portion 14 and the outer leg portion 16 along the circumferential direction of the tire 50 , that is, along the longitudinal direction of the tire antiskid device 10 .

Wires 20 inserted through the inner leg portions 14 are inserted through the distal end portions 14a of the respective inner leg portions 14, and the wires 20 positioned between the distal end portions 14a of the inner leg portions 14 are each provided with a tubular member. 24 are arranged. The tubular member 24 through which the wire 20 is passed is configured to define the distance between adjacently disposed distal ends 14a. The end of the wire 20 inserted through the distal end portion 14a of the inner leg portion 14 is engaged via the engaging means 20a, so that the wire 20 as a whole forms a ring shape. Here, the tubular member 24 through which the wire 20 is inserted is made of resin or the like, and also serves as a protective member for preventing the wire 20 from coming into contact with the wheel 52 or the like.

A fixed portion 16a1 and an insertion portion 16a2 are defined at the distal end portion 16a of the outer leg portion 16. As shown in FIG. The fixed portion 16a1 is defined at least one (two in the example shown in FIG. 1) of the distal end portions 16a of the outer leg portion 16, and fixes one end portion of the wire 22 used for tightening. play a role. The insertion portion 16a2 is a distal end portion 16a other than the fixed portion 16a1, and has a through hole 17 having a diameter larger than the diameter of the wire 22 inserted along the circumferential direction of the tire 50, that is, along the longitudinal direction of the tire antiskid device 10. (see FIG. 6). With such a configuration, the wire 22 inserted through the through hole 17 can be freely moved.

A winding means 18 is provided on the fixing portion 16a1. The winding means 18 is a device capable of winding a wire (winding wire 18a) pulled out from a winding drum (not shown). In the example shown in FIG. 16a2) is inserted so that the winding wire 18a is pulled out in the direction opposite to the extending direction of the wire 22. As shown in FIG. The winding wire 18 a pulled out from the winding means 18 is engaged with the engaging means 22 a provided at the end of the wire 22 . As a result, the wire 22 passing through the distal end portion 16a (insertion portion 16a2) of the outer leg portion 16 also has a ring-like overall shape, similar to the wire 20 passing through the distal end portion 14a of the inner leg portion 14. Become. With such a configuration, the winding wire 18a is wound by the winding device 18, so that the total length of the wire 22 (the total length of the wire 22 and the winding wire 18a) passing through the distal end portion 16a is shortened. , the diameter of the ring formed by the wire 22 and the winding wire 18a is reduced. Therefore, the outer leg portion 16 narrows so as to be pulled toward the inner peripheral side of the tire 50, the tire anti-slip device 10 is attracted to the tire 50, and the mounted state is stabilized.

The wires 22 located between the distal ends 16a of the outer legs 16 are each provided with a tubular member 26. As shown in FIG. As a member constituting the tubular member 26, resin or the like may be used as in the case of the tubular member 24 disposed on the wire 20 passing through the inner leg portion 14. As shown in FIG. The length of each tubular member 26 is the length of tubular member 24 located on wire 20 of inner leg 14 .
designed to be shorter than With such a configuration, even if the diameter of the tire on which the tire anti-skid device 10 is mounted is smaller than the reference size, the outer leg portions 16 (tip portions 16a) are evenly arranged. It is possible to tighten by winding the wire 22 while maintaining it.

[Action/effect]
The tire anti-skid device 10 having the features described above is attached to the tire 50 in the following manner. First, in a state in which the

wires

20 and 22 are disengaged by the respective

engaging means

20a and 22a provided on the

wires

20 and 22 passing through the inner leg portion 14 and the outer leg portion 16, the tire skid prevention is performed. The device 10 is placed around the outer circumference of the tire 50 and the wire 20 is engaged by the engaging means 20a provided at the end of the wire 20 passing through the inner leg 14. As shown in FIG. Next, the other end of the wire 22 passing through the outer leg 16 is engaged with the tip of the winding wire 18a via the engaging means 22a. As a result, the tire anti-skid device 10 is temporarily attached as shown in FIG.

By winding up the winding wire 18a by the winding means 18 from the temporarily mounted state, the tire anti-skid device 10 is tightened and the mounted state to the tire 50 is stabilized.

In the tire antiskid device 10 having such a configuration, the position of the inner leg portion 14 (tip portion 14a) is fixed by the length of the wire 20. As shown in FIG. Therefore, compared with the tire tightening device disclosed in Patent Document 2, where the tire tightening is performed simultaneously on the inner and outer sides of the tire, dispersion of the tightening force is less likely to occur. Therefore, it becomes easier to apply a tightening force when winding the winding wire 18a on the outer leg portion 16 side, and mounting stability can be improved.

In addition, the tire anti-slip device 10 having such a configuration can be easily mounted even when the size of the tire 50 is larger or smaller than the standard size by changing the tightening amount by winding the winding wire 18a. becomes possible.

For example, as shown in FIG. 4, when the tire anti-skid device 10 is mounted on a tire 50a smaller than the reference size, the tread portion 12 is positioned slightly above the center of the tread surface of the tire 50a as shown in FIG. 6(B). It will be closer to the outside (left side in the figure). For this reason, the distance between the distal end portions 16a (fixed portion 16a1, insertion portion 16a2) of the outer leg portion 16 becomes closer, and the gap between the tubular member 26 and the distal end portion 16a becomes smaller (in the example shown in FIG. 4, the gap almost no). Here, the length of the tubular member 26 is set to match the distance at which the tip portion 16a is positioned when the tire having the smallest size among the tire sizes on which the tire anti-skid device 10 is supposed to be mounted is mounted. In this case, the length of the tubular member 26 can determine the lower limit of the tire size that can be properly mounted.

In FIG. 6, FIG. 6A is a partial cross-sectional view showing a state in which the tire antiskid device 10 is mounted on a tire 50 of a standard size, and the range indicated by the pair of broken lines in the figure is the tread portion 12. width.

On the other hand, when the tire anti-skid device 10 is mounted on a tire 50b larger than the standard size, as shown in FIG. ). Therefore, the distance between the distal end portions 16a (fixed portion 16a1, insertion portion 16a2) of the outer leg portion 16 is increased, and the gap between the tubular member 26 and the distal end portions 16a is increased.

As described above, although the mounting state slightly differs depending on the size of the

tires

50, 50a, 50b to be mounted, in any case, the tread portion 12 is the same as the

tires

50, 50a, 50b.
Since it is in contact with the tread surface of 50b, the effect of the anti-skid device 10 can still be achieved.

Further, by making the length of the tubular member 26 arranged on the wire 22 inserted through the outer leg portion 16 shorter than the length of the tubular member 24 arranged on the wire 20 inserted through the inner leg portion 14, The distance between the tip portions 16a of the outer leg portions 16 can be made smaller than the distance at the time of tightening when the tire 50 of the standard size is mounted. Therefore, it is possible to apply a sufficient tightening force even to the tire 50a having a size smaller than the tire 50 of the reference size.

The tire anti-skid device 10 according to the present embodiment is configured such that when the winding of the winding wire 18a changes the total length of the ring formed by the wire 22 and the winding wire 18a, the tips 16a of the plurality of outer legs 16 are The placement position changes so that it approaches evenly. Therefore, there is little change in the positional relationship with the inner leg portion 14 in the fixed position, and the tread portion 12, the inner leg portion 14, and the outer leg portion 16 are less likely to be twisted or otherwise distorted. Therefore, deterioration of the tire antiskid device 10 can be suppressed.

Reference Signs List 10 Tire anti-skid device 12 Tread portion 12a Stud 14 Inner leg 14a Tip 16 Outer leg 16a Tip Part 16a1 Fixed part 16a2 Insertion part 17 Through hole 18 Winding means

18a Winding wire

20, 22

Wire

20a, 22a ...... Engagement means 24, 26 Tubular member 30 Non-slip pattern 50 Tire 50a Small tire 50b Large tire 52 Wheel .

Claims

It has a tread portion arranged on the tire tread surface of a vehicle, and a plurality of inner leg portions and outer leg portions arranged at predetermined intervals along the longitudinal direction of the tread portion and extending in the width direction. , a tire anti-slip device having a structure in which the tread portion, the inner leg portion, and the outer leg portion are brought into close contact with the tire by winding a wire,
the tips of the plurality of inner legs are arranged at predetermined intervals with respect to a wire having a predetermined length;
A tire anti-slip device, wherein the distal end portions of the plurality of outer leg portions have wire insertion portions through which a wire that can be wound by a winding means can be inserted.
A tubular member is disposed between each of the wire for fixing the distal end of the inner leg and the wire for inserting the distal end of the outer leg, and
The length of the tubular member arranged on the wire passing through the distal end of the outer leg is set shorter than the length of the tubular member arranged on the wire fixing the distal end of the inner leg. The tire antiskid device according to claim 1, characterized in that:
The length of the tubular member attached to the wire passing through the tip of the outer leg is the length between the tip of the outer leg when attached to the smallest size tire among the tire sizes assumed to be attached. 3. The tire antiskid device according to claim 1 or 2, wherein the tire antiskid device is determined according to the distance of .