JP2602174B2 - Tires and auxiliary tires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a tire and an auxiliary tire.

[0002]

2. Description of the Related Art Conventionally, when driving on a snowy road by driving a vehicle equipped with normal tires, a tire chain must be wound around the normal tires, which is extremely complicated.

[0003] If a spiked tire is mounted in advance, traveling on snowy roads becomes easy. However, when traveling on a paved road or the like without snow, dust due to spikes is rolled up, which is unfavorable for environmental hygiene. There is a tendency to prohibit tire mounting.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a tire that normally functions as a normal tire and, if necessary, functions as a spike tire. It is intended to do so.

[0005] Another object of the present invention is to provide an auxiliary tire that is mounted on a normal tire and, if necessary, exhibits a function as a spike tire.

[0006]

According to the first aspect of the present invention,
A tire having a tire body mounted on a wheel and a side tire portion integrally disposed on a side portion of the tire body, wherein the side tire portion has the same diameter as a main body tread of the tire body. A side tread in which pin holes are formed in a staggered arrangement over the entire circumference, a side air chamber located on the side of the air chamber of the tire body, and an outer periphery of the side air chamber inside the side tread A displacement body projecting a staggered projecting pin arranged along the staggered arrangement, and a slide band body provided with a staggered arrangement of elongated holes arranged along the inner circumference of the side tread over the entire circumference. An elastic body for sliding, which is connected to the displacement body and the slide band and slides the slide band by displacement of the displacement body according to an increase or decrease in air pressure of the side air chamber, wherein the side air chamber In the outer peripheral direction of the displacement body with the increase of air pressure In accordance with the position, the elongated holes of the slide band are staggered so as to face the pin holes in the staggered arrangement, and the projecting pins in the staggered arrangement are projected to the outer periphery of the side tread, and the side air is In accordance with the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure of the chamber, the elongated holes of the slide band are staggered from the pin holes of the staggered arrangement so that the inside of the side tire portion is set to the outside. It is designed to be shielded from.

The amount of protrusion of the protruding pin from the side tread is changed in accordance with various conditions of the snowy road by adjusting the air pressure of the side air chamber.

According to a third aspect of the present invention, there is provided an auxiliary tire attached to the outside of a tire mounted on a wheel that can be fitted to a wheel disc, wherein the pin holes have the same diameter as the main body tread of the tire and are arranged in a staggered arrangement. An auxiliary tire main body provided with a tread formed over the entire circumference, an auxiliary air chamber provided in the auxiliary tire main body, and a staggered protrusion disposed along the outer periphery of the auxiliary air chamber inside the tread. A displacement body having a pin protruding therefrom, a slide band provided with a staggered slot arranged along the inner circumference of the tread over the entire circumference, and the displacement body and the slide band being connected to the slide body. An elastic body for sliding, which slides the slide band by displacement of the displacement body in accordance with an increase or decrease in air pressure of an auxiliary air chamber, and a wheel supporting the auxiliary tire body and mounting the tire An auxiliary wheel that can be fitted to a wheel disc from outside of the sliding band, and the elongated holes of the slide band are arranged in a staggered manner in accordance with the displacement of the displacement body in the outer peripheral direction accompanying an increase in the air pressure of the auxiliary air chamber. In a staggered arrangement facing a pin hole, and projecting the staggered projection pins to the outer periphery of the tread, according to the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure of the auxiliary air chamber. The elongated holes of the slide band are staggered from the pin holes of the staggered arrangement so as to shield the inside of the auxiliary tire main body from the outside.

According to a fourth aspect of the present invention, the amount of protrusion of the protruding pin from the side tread is changed according to various conditions of the snowy road by adjusting the air pressure of the auxiliary air chamber.

[0010]

According to the tire of the present invention described above, the side tire portion integral with the tire main body is displaced by a change in the air pressure of the side tread, the side air chamber, the slide band, and the slide member. It is constituted by an elastic body.

Then, air is introduced into the side air chamber, and the elongated holes of the slide band are arranged in the staggered arrangement with the pin holes in accordance with the displacement of the displacement body accompanying an increase in the air pressure. In this case, the staggered projecting pins are projected to the outer periphery of the side tread through the elongated holes and the pin holes. In this case, the side tire portion of the tire functions as a spike tire. Can be done.

The air in the side air chamber is evacuated, and the projecting pins in a staggered arrangement are buried in the side tire portion in accordance with the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure. And, since the elongated holes of the slide band are staggered from the pin holes of the staggered arrangement so as to shield the inside of the side tire portion from the outside, in this case, the side in this tire The side tread of the partial tire portion comes into direct contact with the ground together with the main body tread of the tire main body in a state where the protruding pins do not protrude, so that the entire tire can function as a normal tire. And
Since the pin hole is covered by the slide band, rainwater and the like do not enter the side tire portion.

By adjusting the air pressure of the side air chamber, the amount of protrusion of the protruding pin from the side tread is changed in accordance with various conditions of the snowy road. Applicable to heavy snowy roads, snowy roads with fresh snow on frozen snow, etc.

Further, the auxiliary tire of the present invention described above,
If necessary, it is attached to the outside of the tire attached to the wheel that can be fitted to the wheel disc.

[0015] Then, air is introduced into the side air chamber, and the elongated holes of the slide band are stuck to the pin holes in the staggered arrangement in accordance with the displacement of the displacement body accompanying the increase in the air pressure. However, this makes the projecting pins in a staggered arrangement project to the outer periphery of the tread via the elongated holes and the pin holes. In this case, the auxiliary tire functions as a spike tire outside the normal tire. be able to.

The air in the side air chamber is evacuated, and the projecting pins in a staggered arrangement are buried in the auxiliary tire main body in accordance with the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure. Further, since the elongated holes of the staggered arrangement of the slide band are shifted from the pin holes of the staggered arrangement to shield the inside of the auxiliary tire main body from the outside, in this case, the tread of the auxiliary tire main body is used. The tire comes into direct contact with the ground together with the main body tread of the tire without the protruding pin protruding, so that this auxiliary tire can function as a normal tire.

Since the pin holes are shielded by the slide band, rainwater or the like does not enter the auxiliary tire.

Further, by adjusting the air pressure of the side air chamber, the amount of protrusion of the protruding pin from the tread is changed in accordance with various conditions of the snowy road, so that an ice burn, a snowy snowy road, and heavy snowfall can be obtained. Applicable to roads, snowy roads with fresh snow on frozen snow, etc.

[0019]

Embodiments of the present invention will be described below in detail.

The tire 1 of the present embodiment shown in FIGS. 1 to 3, 3, 5, and 6 has a tire body 3 mounted on a circular wheel 2 and integrally disposed on a side portion of the tire body 3. And a side tire portion 4.

The tire main body 3 includes a main body tread 3a,
Both side portions 3b and 3c are integrally formed of rubber and mounted on the wheel 2 to form an air chamber 5 therein.

The wheel 2 has a wheel disc 2
0 is fitted to a protruding bolt 21 protruding from
Is fastened to the protruding bolt 21 so as to be integrally attached to the wheel disc 20.

Further, an engaging pin 2a provided on the wheel 2
The wheel cap 23 is put on the wheel 2 by fitting a claw portion 24 provided on the wheel cap 23 into the wheel 2.

A first valve 25 is connected to the air chamber 5 from the inner peripheral side of the wheel 2. The first valve 25 supplies air to the air chamber 5.

The side tire portion 4 is provided on the tire main body 3.
And a tube formed on the side of the air chamber 5 of the tire body 3 having pin holes 6 formed in a staggered arrangement over the entire circumference and having the same diameter as the body tread 3a. As shown in FIG. 5, a side stylus-shaped metal protrusion arranged at a predetermined interval G1 along the outer periphery of the tube 8a inside the side tread 7 as shown in FIG. The pin 9 is disposed so as to be covered with, for example, a metal displacement body 10 protruding outward, and a rubber covering 11b formed in a belt shape along the inner periphery of the side tread 7, for example. And a metal slide strip 1 having a staggered slot 11a provided over the entire circumference.
1, the displacement body 10, and the hole 1 provided in the covering body 11b.
1c, the slide band 11 is connected to the slide band 11 by displacement of the displacement body 10 in the outer circumferential direction or the inner circumferential direction in accordance with an increase or decrease in the air pressure of the side air chamber 8.
4 is disposed in a space between the sliding elastic body (for example, a leaf spring) 12 for sliding in the direction of arrow a shown in FIG. 4 and the displacement body 10 and the covering body 11b, and constantly presses the displacement body 10 in the center direction. A plurality of springs (for example, coil springs) 13
And

A second valve 26 is connected to the side air chamber 8 from the inner peripheral side of the wheel 2, and the second valve 26 supplies air to the side air chamber 8. I have.

Next, the operation of the tire 1 having the above configuration will be described with reference to FIGS.

When air is supplied to the side air chamber 8 by the second valve 26 as necessary, the displacement body 10 is moved upward by the expansion of the tube 8a accompanying the increase in the air pressure of the side air chamber 8, as shown in the upper part of FIG. , FIG. 6 and FIG. 8 to the states shown in the lower part of FIG. 4, FIG. 7 and FIG. At this time, the gap G2 between the displacement bodies 10 is larger than the initial gap G1 (G2> G1).

That is, the displacement body 10 is displaced toward the outer periphery as a whole, and the protruding pin 9 is also displaced from the initial position toward the outer periphery. At this time, the elastic body for sliding 1
The elastic force of 2 acts on the slide band 11, and the slide band 11 slides, so that the elongated holes 11a of the staggered arrangement also slide to face the pin holes 6 of the side treads 7. Become.

As a result, the elongated hole 11a and the pin hole 6 are in a penetrating state, and the projecting pin 9 displaced to the outer peripheral side projects outward from the pin hole 6 of the side tread 7, as shown in the lower part of FIG. . In this case, the side tire portion 4 of the tire 1 can function as a protruding pin tire that can cope with a snowy road or the like. Also, by adjusting the amount of air supplied to the side air chamber 8 and adjusting the displacement of the displacement body 10,
The amount of protrusion of the protruding pin 9 from the surface of the side tread 7 can be adjusted.

Conversely, when the air in the side air chamber 8 is evacuated,
With the decrease in the air pressure, the displacement body 10 is displaced inward as a whole, and the projecting pin 9 is also displaced from the projecting position to the original position. Then, the elastic force of the slide elastic body 12 on the slide band 11 becomes weaker in accordance with the displacement of the displacement body 10,
The slide band 11 slides to its original position, whereby the staggered elongated holes 11a also slide to the original position and the lower side of the pin hole 6 of the side tread 7 is shielded by the slide band 11. State.

In this case, the side tread 7 of the side tire portion 4 of the tire 1 comes into direct contact with the ground together with the main body tread 3a of the tire main body 3 without the protruding pin 9 protruding. 1 can function as a normal tire. Since the pin hole 6 is shielded by the slide band 11, rainwater or the like does not enter the side tire portion 4.

The projecting state of the projecting pin 9 from the surface of the side tread 7 will be described in further detail. As shown in FIG. 10, the projecting amount is minimized to, for example, about 2 mm and used for ice burn. As shown in FIG. 12, the protrusion amount is, for example, about 4 mm, which is used for snowy roads in urban areas with a lot of moisture, as shown in FIG. 12, the protrusion amount is, for example, about 6 mm, for use on roads in heavy snowy areas, or as shown in FIG. The maximum amount of protrusion, for example, about 8 mm, and the use on snowy roads where fresh snow falls on frozen snow makes it possible to appropriately cope with various types of snowy roads.

FIGS. 14 and 15 show a modified example of the side tire portion 4. The side tire portion 4 A substantially matches the displacement body 10 instead of the protruding pin 9. A box-shaped protruding pin 18 is attached so as to protrude and retract from each hole provided in the side tread 7. In this case, by providing the protruding pin 18 with the groove 18a,
The side tire portion 4A that can cope with a sandy land or a wetland can be configured.

FIG. 16 shows an example in which a larger number of the projecting pins 9 are provided than in the case described above, and the projecting pins 9 having twice the number of the projecting pins 9 as shown in FIG. It is protruding. In this case, by forming the tip of the protruding pin 9 sharply in the shape of a triangular pyramid, it can surely bite into a snowy road or the like in actual use, and exhibit a function as a more effective spike tire.

Next, the auxiliary tire 30 of this embodiment will be described with reference to FIGS.

The auxiliary tire 30 shown in FIGS.
Is constructed separately from the normal tire 31 and can be attached to the outside of the tire 31.

This auxiliary tire 20 is mounted on the outside of a tire 31 mounted on a wheel 2 which can be fitted on a normal wheel disc 20. Like the side tire portion 4, the main body of the tire 31 is An auxiliary tire main body 32 having a tread 33 having the same diameter as the tread 31a and having pin holes 34 formed in a staggered shape over the entire circumference, and auxiliary air provided in the auxiliary tire main body 32 using a tube 35a. A chamber 35 and an auxiliary air chamber 3 inside the tread 33
5, a displacement body 37 protruding from a staggered protruding pin 36 disposed along the outer circumference of the tread 5, and a staggered long hole disposed along the inner circumference of the tread 33 over the entire circumference. A slide band 38 similar to the slide band 11, and the slide band 38 connected to the displacement body 37 and the slide band 38 by the displacement of the displacement body 37 in accordance with an increase or decrease in the air pressure of the auxiliary air chamber 35. , A plurality of coil springs 50, and an auxiliary wheel 40 which supports the auxiliary tire main body 32 and can be fitted to the wheel disc 20 from outside the wheel 2 on which the tire 21 is mounted. And

As shown in FIG. 19, the auxiliary wheel 40 has a bottomed cylindrical fitting projection 41 which can be fitted to the outside of the wheel 2. A center hole 42 through which the shaft 20a of the wheel disc 20 can be inserted and a hole 43 through which the protruding bolt 21 can be inserted are provided. Further, the auxiliary wheel 40 is provided with a cutout portion 40a through which the first valve 25 for the tire 31 can be inserted, a second valve 26 for supplying air, and a claw portion 40b.

According to the auxiliary tire 30, as shown in FIGS. 20 and 21, the fitting projection 41 is fitted to the shaft 20a from the outside of the tire 31, and the nut 45 is fitted to the projecting bolt 21 projecting from the hole 43. The auxiliary tire 30 is fixed to the outside of the tire 31 by screwing the
Performs the same function as

That is, from the second valve 26 to the side air chamber 3
In the situation shown in FIG. 21 in which air is supplied to the side air chamber 35 to increase the air pressure in the side air chamber 5, the sliding member 37 is moved in accordance with the displacement of the displacement body 37 in the outer peripheral direction accompanying the increase in the air pressure in the auxiliary air chamber 35. The projecting pins 36 protrude to the outer periphery of the tread 33 in a staggered arrangement through the elongated holes of the band body 38 and the pin holes 34.

Thus, the auxiliary tire 30 can function as a spike tire as in the case of the side tire portion 4. At this time, the protrusion of the protruding pin 36 is adjusted by adjusting the air pressure of the auxiliary air chamber 35 in the same manner as in the case shown in FIGS. 10 to 13, so that an ice burn, a snowy road in an urban area, a snowy road in a heavy snowy area, It can respond to various snowy roads such as roads with lots of snow.

Further, the air pressure of the auxiliary air chamber 35 is reduced, and the elongated holes of the slide band 38 are staggered in accordance with the displacement of the displacement body 37 in the inner circumferential direction as shown in FIG. The interior of the auxiliary tire main body 32 can be shielded from the outside by being displaced from the pin holes 34 arranged in a zigzag arrangement, and the tire 31 can be kept attached to the auxiliary tire main body 30 without intrusion of rainwater or the like into the interior of the auxiliary tire main body 32. The vehicle can be driven normally.

[0044]

According to the present invention described in detail above, by supplying or extracting air to the side tires, it functions as a spike tire that can be used on snowy roads or the like or a normal tire that can be used on ordinary roads. Can be provided.

Further, according to the present invention, it is possible to provide a tire which can appropriately cope with various snowy roads by adjusting the projecting state of the projecting pin from the side tread surface.

Further, according to the present invention, it is possible to provide an auxiliary tire that is attached to a normal tire to function as a spike tire and that does not hinder running by the normal tire. Further, by adjusting the protruding state of the protruding pin from the tread surface, it is possible to provide an auxiliary tire that can appropriately cope with various snowy roads.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tire according to an embodiment.

FIG. 2 is a front view of the tire according to the embodiment.

FIG. 3 is a cross-sectional view of the tire of the present embodiment.

FIG. 4 is an explanatory diagram showing a positional relationship among a protruding pin, a sliding elastic body, and a side tread of the tire according to the present embodiment.

FIG. 5 is a perspective view of a displacement body disposed on a tube according to the present embodiment.

FIG. 6 is a cross-sectional view showing a state in which a protruding pin of the tire of the present embodiment does not protrude from a side tread.

FIG. 7 is a cross-sectional view showing a state in which a protruding pin of the tire of the present embodiment protrudes from a side tread.

FIG. 8 is a cross-sectional view showing a state in which a protruding pin of the tire of the present embodiment does not protrude from a side tread.

FIG. 9 is a cross-sectional view showing a state in which a protruding pin of the tire of this embodiment protrudes from a side tread.

FIG. 10 is an explanatory diagram showing a protruding state of a protruding pin of a tire of the present embodiment from a side tread.

FIG. 11 is an explanatory diagram showing a protruding state of a protruding pin of the tire of the present embodiment from a side tread.

FIG. 12 is an explanatory view showing a state in which a protruding pin of the tire of this embodiment protrudes from a side tread.

FIG. 13 is an explanatory diagram showing a protruding state of a protruding pin of the tire of the present embodiment from a side tread.

FIG. 14 is a partial cross-sectional view showing a modification of the side tire portion in the tire of the present embodiment.

FIG. 15 is a partial perspective view showing a modification of the side tire portion in the tire of the present embodiment.

FIG. 16 is a perspective view of another example of the displacement body and the protruding pin arranged on the tube of the present embodiment.

FIG. 17 is a perspective view showing an auxiliary tire of the present embodiment.

FIG. 18 is a front view showing an auxiliary tire of the present embodiment.

FIG. 19 is a sectional view showing an auxiliary tire of the present embodiment.

FIG. 20 is a sectional view showing an auxiliary tire and a tire according to the present embodiment before being mounted.

FIG. 21 is a cross-sectional view showing the auxiliary tire and the tire according to the present embodiment after attachment.

FIG. 22 is a cross-sectional view showing the auxiliary tire and the tire according to the present embodiment after attachment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tire 2 Wheel 3 Tire main body 4 Side tire part 5 Air chamber 6 Pin hole 7 Side tread 8 Side air chamber 9 Protruding pin 10 Displacement body 11 Slide band body 12 Elastic body for slide 30 Auxiliary tire 31 Tire 32 Auxiliary tire Body 35 Auxiliary air chambers 35 and 36 Protruding pin 37 Displacement body 38 Slide band 39 Elastic body for slide 40 Auxiliary wheel

 ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-4-201703 (JP, A) JP-A-3-7607 (JP, A) JP-A-63-255104 (JP, A) JP-A-1- 254408 (JP, A) JP-A-62-241713 (JP, A) JP-A-61-200011 (JP, A) JP-A-59-164208 (JP, A) JP-A-55-22580 (JP, A) JP-A-62-225409 (JP, A) JP-A-62-168903 (JP, U) JP-A-60-169005 (JP, U) JP-A-63-4803 (JP, U) JP-A-60-163103 (JP, U) JP 47-1003 (JP, U) JP 3-33523 (JP, B2) JP 7-12083 (JP, Y2)

Claims (4)

(57) [Claims] 1. A tire comprising: a tire main body mounted on a wheel; and a side tire portion integrally disposed on a side portion of the tire main body, wherein the side tire portion includes a tire main body. A side tread having pin holes formed in a staggered arrangement over the entire circumference in the same diameter as the main body tread, a side air chamber located on the side of the air chamber of the tire main body, and a side inside the side tread. A displacement body having a staggered projecting pin arranged along the outer periphery of the air chamber and a staggered elongated hole arranged along the inner periphery of the side tread are provided over the entire circumference. A slide band, and a sliding elastic body that is connected to the displacement body and the slide band, and slides the slide band by displacement of the displacement body according to an increase or decrease in air pressure of the side air chamber, The displacement body accompanying an increase in the air pressure of the side air chamber According to the displacement in the outer peripheral direction, the elongated holes of the slide band are staggered so as to face the pin holes in the staggered arrangement, and the projecting pins in the staggered arrangement are projected to the outer periphery of the side tread, In accordance with the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure of the side air chamber, the long holes of the slide band are staggered from the pin holes of the staggered arrangement to shift the slide band. A tire characterized in that the inside is shielded from the outside. 2. Adjusting the air pressure of the side air chamber,
The tire according to claim 1, wherein an amount of protrusion of the protruding pin from a side tread is changed according to various states of a snowy road. 3. An auxiliary tire attached to the outside of a tire mounted on a wheel that can be fitted to a wheel disc, wherein pin holes are formed in a staggered arrangement over the entire circumference with the same diameter as the main body tread of the tire. An auxiliary tire main body including the formed tread, an auxiliary air chamber provided in the auxiliary tire main body, and a displacement in which a staggered projecting pin disposed along the outer circumference of the auxiliary air chamber inside the tread is projected. Body, a slide band provided with a staggered slot arranged along the inner circumference of the tread over the entire circumference, and a displacement of the air pressure of the auxiliary air chamber connected to the displacement body and the slide band. An elastic body for sliding, which slides the slide band by displacement of the displacement body in accordance with increase and decrease, and a wheel that supports the auxiliary tire main body and is mounted on the outside of a wheel on which the tire is mounted. An auxiliary wheel that can be fitted to a disk, wherein the elongated holes of the slide band are arranged in a staggered manner in accordance with the displacement of the displacement body in the outer peripheral direction accompanying an increase in the air pressure of the auxiliary air chamber. The staggered projecting pins are projected toward the outer periphery of the tread so as to face the pin holes in the arrangement, and the slide band is moved in accordance with the displacement of the displacement body in the inner circumferential direction due to the decrease in the air pressure of the auxiliary air chamber. An auxiliary tire, wherein the elongated holes of the body are staggered from the pin holes of the staggered arrangement so as to shield the inside of the auxiliary tire body from the outside. 4. Adjusting the air pressure of the auxiliary air chamber,
The auxiliary tire according to claim 3, wherein an amount of protrusion of the protruding pin from the side tread is changed according to various states of a snowy road.