JPS5919601Y2 - spike tires - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a spiked tire, and more particularly, to a spiked tire in which spike rivets can be inserted and removed freely and instantaneously.

When it snows or the roads are frozen, wrap tire chains or
You cannot drive safely unless you replace normal tires with spiked tires, and once you change to spiked tires, it is extremely troublesome to remove and replace them, and you cannot guarantee that you will encounter snowfall at any time, so you will not be able to drive safely. It is normal to always wear spiked tires.

For this reason, when driving on completely plowed roads where spiked tires are unnecessary or on regular roads that are not covered with snow or ice, not only do they make noise and the bundle is heavy when driving, but they also cause damage to the roads and roads. Because the upper markings are scraped off with sharp spikes, the path is seriously damaged and road repair costs are enormous.

Moreover, when using spiked tires, fuel efficiency deteriorates, which is not desirable from an energy saving perspective.Furthermore, it is difficult to change tires with spiked tires smoothly, so slip accidents and traffic jams occur frequently during sudden snowfall, and snowfall season In the near future, drivers will have a hard time deciding when to change their tires.

However, if you can freely protrude the spike studs from the tire at the moment of need to make it a spiked tire, drive safely in snowy conditions, and retract the spike studs when the spikes are not needed, all of these problems can be solved. solve.

This idea was made in view of the above points, and it is a spiked tire that can instantly cause spikes to protrude by injecting air into a flat tube placed inside the partitioned outer peripheral wall of the tire. with the purpose of providing
The feature is that a partition plate made of steel is installed close to the inner surface of the tire along the inner surface of the tire to divide the inside of the tire into an outer circumferential chamber and an inner circumferential chamber. A flat tube with directional spikes planted therein is provided, and holes are formed in the ground contact surface of the tire corresponding to the spikes,
An air inlet communicating with the outside of the tire extends from the flat tube.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In the cross-sectional view of the tire 10 shown in FIG. 1, a tube 12 is provided inside the tire, and a carcass (not shown) with little elongation in the circumferential direction and width direction is provided on the bottom surface of the outer skin 14 of the tire 10 as usual. Make it internal.

Avoiding this carcass, a hole 18 for a spike rivet and a spike rivet 20 are provided that communicate from the ground contact surface 16 of the tire 10 to the inside of the tire 10, and the end of the spike rivet 20 inside the tire 10 is connected to a flat surface in contact with the inner surface of the tube 12. It is fixed to the bottom surface of the tube 22.

A partition plate 24 made of a steel plate is provided to cover the upper surface of the flat tube 22 and go around inside the tube 12, and the partition plate 24 is engaged with a protrusion 26 formed on the inner surface of the tube 12 in an airtight manner.

An air injection pipe (not shown) is provided in the flat tube 22, and this pipe is passed through the partition plate 24 to connect the tube 12.
The inner surface communicates with the outside of the tire to form an air inlet, and this air inlet is disposed close to the air inlet 28 of the tube 12.

Next, a method of using the spiked tire according to the present invention will be described.

First, as usual, enough air is filled into the tube 12 through the air inlet 28 for driving the vehicle, and the flat tube 22 is also filled with air to the extent that the spike studs 20 do not protrude from the ground contact surface 16 of the tire 10.

This air pressure can prevent the flat tube 22 from shifting or moving in the left-right direction, and also provides double cushioning and tire puncture prevention effects.

The partition plate 24 also acts as reinforcement for the tire and prevents the pressure inside the tube 12 from directly reaching the flat tube 22.

When it becomes necessary to use spiked tires during a sudden snowfall, a short insulated hose is used to send the air inside the tube 12 into the flat tube 22.

The flat tube 22 is sufficiently expanded by this air pressure,
The spike rivets 20 are protruded from the ground contact surface 18 of the tire to provide the effect of a spiked tire.

When the spike rivet is no longer needed, the spike rivet 20 is housed in the tire 10 by immediately draining the air inside the flat tube 22 to a certain extent to reduce the air pressure.

Another embodiment is shown in FIG. 2 in an enlarged view of the relationship between the spike stud 30 and the tire 10.

A truncated cone-shaped spike stud 30 convexing downward is inserted into an inverted cone-shaped hole 32 bored in the ground contact surface 16 of the tire.

A urethane sponge 36 is attached between the flat tube 34 in which the spike rivet 30 is implanted and the inner surface of the tire to provide a retracting force when the spike rivet 30 is pulled in.

38 is a steel plate for preventing the rubber of the flat tube 30 from escaping from the spike rivet 30.

In this way, according to the present invention, a flat tube with spikes is simply inflated in order to make the spikes protrude from the tire, and a normal tire can be instantly changed to a spiked tire, and a spiked tire can be changed to a normal tire. It is also easy to change.

By adjusting the degree of expansion of the flat tube with spikes, it is possible to select and use the optimal spike condition according to the road conditions, such as the first snowfall, mid-winter, and thaw season, reducing the loss of spikes. It can also be decreased.

It can also improve fuel efficiency, noise, and drivability.

Furthermore, the protrusion of the spike studs can be done reliably, and the tire is
Due to the layered structure, the cushioning properties are good and it has great effects such as being able to prevent punctures.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view of a spiked tire, and FIG. 2 is a partially enlarged sectional view of a spiked tire showing another embodiment. 10... Tire, 12... Tube,
14... Outer skin, 16... Ground plane, 18
...Hole, 20...Spike rivet, 22
...Flat tube, 24 ... Division plate,
26... protrusion, 28... air inlet,
30...Spike stud, 32...Hole part,
34... Flat tube, 36... Urethane sponge, 38... Steel plate.

Claims (1)

[Scope of utility model registration request] A partition plate made of a steel plate is disposed adjacent to the inner surface of the tire along the inner surface of the tire to divide the inside of the tire into an outer circumferential chamber and an inner circumferential chamber, and spikes in the outer circumferential chamber are directed toward the ground contact surface of the tire. A flat tube with studs embedded therein is provided, a hole is formed in the ground contact surface of the tire corresponding to the spike stud, and an air inlet leading to the outside of the tire extends from the flat tube. Spiked tires.