JPH0411841Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a spiked tire.

BACKGROUND OF THE INVENTION Conventional spiked tires cannot freely adjust the protrusion of the spikes to expand or contract while driving.

Problems that the invention aims to solve When driving on a paved road without ice or snow using conventional spiked tires, the spikes scrape the pavement surface, making it rough and erasing the white and yellow lines on the road defined by traffic regulations. The paved road material that has been scraped off and scraped off causes dust pollution.Furthermore, even if you try to vary the spike action depending on the ice and snow conditions on the road surface, it is impossible to do so, resulting in the problem of having to change tires or install chains. It was hot.

Means for Solving the Problems Therefore, the present invention provides a magnetic force device whose polarity can be reversed along the rotation range of the tire, and also provides a magnetic force device within the base spike 2 driven into the tire, along one side wall of the magnetic force device. A fixing part 4 having a space 5 on the bottom side facing the opening is integrally provided, and a fixing part 4 having a space 5 on the bottom side facing the opening is provided on the other side wall. A spike 3 that protrudes and retracts due to the repulsive force of the magnetic force is provided to be movable up and down, while the spike 3 slides along the bottom of the base spike 2 from inside the space 5 in conjunction with the spike 3 due to the attractive force of the magnetic force. A stopper 6 that makes surface contact with the lower surface of the spike 3 in the protruding state of the spike 3 and evacuates into the space 5 by the repulsive force of magnetic force to retract the spike 3 to the bottom of the base spike 2. The present invention provides a spiked tire having magnetic extensible spikes.

Function When driving on a road with ice and snow, when the magnetic device is activated, the spike 3 protrudes along the fixed part 4 of the base spike 2 driven into the tire by the attraction force of the magnetic force. , the stopper 6, which had been retracted into the space 5 on the bottom side of the fixed part 4, slides along the bottom of the base spike 2, and when the spike 3 is in the protruding state, the stopper 6
Since the spikes 3 are placed in surface contact with the lower surface of the spikes, the protruding state of the spikes 3 can be maintained reliably to catch the road surface and prevent slips. The stopper 6 is retracted into the space 5 on the bottom side of the fixed part 4 by the repulsive force of the magnetic force, and at the same time the spike 3 is retracted to the bottom of the base spike 2. The distance between the protruding state and the retracted state of the spikes 2 can be set to be large depending on the size of the stopper 6, and the vehicle can travel while ensuring that the spikes do not act.

This magnetic force device can be operated easily by operating a switch in the driver's seat, so not only does it not require work outside the vehicle as in the past, but it can also be done while the vehicle is running without having to stop.

Embodiments The present invention will be described in detail with reference to embodiments shown below. Reference numeral 1 is a tire, and 2 is a base spike driven into the tire 1. Reference numeral 3 denotes a spike made of a magnetic material that is provided within the base spike 2 so as to be movable up and down by magnetic force. A protrusion 3a from the center of the tip of the spike can be provided as necessary. A fixed part 4 also serves as a guide frame for vertical movement of the spike 3, and is integrally provided along one side wall of the base spike 2 with a space 5 formed on the bottom side from the bottom toward the opening. The fixing part 4 and the space part 5 are attached to the other side wall of the base spike 2.
The spikes 3 according to the present invention are vertically movable so that they protrude from the bottom toward the opening along the sides of the opening due to the attractive force of the magnetic force, and are retracted due to the repulsive force of the magnetic force.

A stopper 6 made of a magnetic material is provided in a space 5 provided below the fixing part 4 and the bottom of the base spike 2 so as to be removable. As shown in the second figure, the stopper 6 slides along the bottom of the base spike 2 from within the space 5 in conjunction with the spike 3 due to magnetic attraction, and when the spike 3 is protruding, the stopper 6 slides onto the bottom surface of the spike 3. It is provided so that it is placed in surface contact with the base spike 3 and is retracted into the space 5 by the repulsive force of the magnetic force, so that the spike 3 is retracted to the bottom of the base spike 2.

In FIGS. 2 and 3, reference numerals 7 and 8 are magnetic devices configured so that the polarity can be reversed, including a state in which there is no polarity. When the magnetic devices are provided at two locations along the rotation range of the tire 1, they are constructed so that they each have opposite polarities, and when they are composed of permanent magnets, for example, magnets that have the same polarity toward the spikes 3 are used. If it is configured so that it can be moved linearly or rotationally to perform near and far operations in the rotation range, and it is composed of electromagnets, it can be excited or turned off by turning on and off the power supply, without providing a special mechanism for moving near and far. It can be configured to be in a non-magnetic state. Further, when a magnetic device is provided at one location, a permanent magnet is configured to change the polarity by reversing by rotational movement, and an electromagnet is configured to change the polarity by reversing the positive/negative of the power supply.

With this configuration, as shown in the second figure, the S of the magnetic force device 7 is
When the pole faces the spike 3, the tip of the spike 3 made of magnetic material becomes the N pole and is attracted and protrudes.
Since the rear end becomes the north pole, the rear end of the spike 3 becomes the south pole, and at the same time, the contact surface side of the stopper 6 made of magnetic material becomes the north pole and is dragged from the space 5 to the spike 3. The spike 3 slides to the bottom of the spike 3, makes surface contact with the spike 3, and becomes a stopper that prevents the spike 3 from retreating. Next, as shown in the third diagram, when the polarity of the magnetic device 8 is reversed and becomes N pole,
The tip of the spike 3, which had been the north pole, is repelled, and at the same time, the stopper 6, which is in contact with the north pole at the bottom of the spike 3, is also repelled by the north polarity of the magnetic device 8, and the lower space 5 of the fixed part 4 The base spike 3 slides inward and retracts, and the spike 3 also moves to the retracted position where it abuts the bottom of the base spike 2.

Incidentally, even if the spikes 3 and the stoppers 6 made of the magnetic material are permanent magnets with fixed polarity, the same operation is possible, so they may be configured in such a manner.

Effects As described above, according to the spiked tire according to the present invention, a magnetic device is provided so that the polarity can be reversed along the rotation range of the tire, and a magnetic device is provided in the base spike 2 driven into the tire along one side wall thereof. A fixing part 4 having a space 5 on the bottom side facing from the bottom to the opening is integrally provided, and a magnetic attraction is provided along the sides of the fixing part 4 and the space 5 from the bottom to the opening on the other side wall. The spikes 3 are provided so as to be movable up and down, and are protruded by force and retracted by the repulsive force of the magnetic force, while the spikes 3 are moved upwardly and downwardly by the attractive force of the magnetic force.
The base spike 2 is inserted from inside the space 5 in conjunction with the
The spike 3 slides along the bottom of the base spike 2 and comes into surface contact with the bottom surface of the spike 3 in the protruding state, and is retracted into the space 5 by the repulsive force of the magnetic force, causing the spike 3 to be attached to the base spike 2. Since the structure includes a stopper 6 that can be retracted to the bottom of the base spike 2, when the magnetic device is activated when driving on a road with ice and snow, the magnetic attraction force causes the stopper 6 to move along the fixed part 4 inside the base spike 2. At the same time as the spike 3 protrudes, the space 5 on the bottom side of the fixing part 4
The stopper 6, which had been retracted inside, slides along the bottom of the base spike 2 to the lower part of the spike 3, and serves as a stopper that prevents the retraction of the spike 3 by surface contact, and the spike 3 is in the protruding state. On the other hand, on roads without ice or snow, the polarity of the magnetic device is reversed and acts in the opposite direction when protruding, and the repulsive force of the magnetic force causes the stopper to stop. 6 into the space 5 on the bottom side of the fixing part 4, and at the same time, the spikes 3 are greatly evacuated to the bottom of the base spikes 2 to ensure that the spikes do not act and damage the paved surface. Furthermore, since the structure is simple, the spikes 3 can be easily removed and replaced, and the protruding distance of the spikes 3 can be replaced with a stopper 6 of a different height. This has the effect that it can be easily changed as needed.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing the main parts of the spiked tire according to the present invention, Fig. 2 is an explanatory view showing the operating mode thereof in a longitudinal cross-section, and Fig. 3 is a longitudinal cross-sectional view showing other operating modes. FIG. 1...Tire, 2...Base spike, 3...
Spike, 5... space section, 6... stopper,
7, 8... Magnetic device.

Claims (1)

[Scope of utility model registration request] A magnetic device is provided so that the polarity can be reversed along the rotation range of the tire, and a space 5 is provided in the base spike 2 driven into the tire from the bottom toward the opening along one side wall of the base spike 2. A fixing part 4 is integrally provided, and spikes 3 are attached to the side wall along the sides of the fixing part 4 and the space 5 from the bottom toward the opening, protruding due to the attractive force of the magnetic force and retracting due to the repulsive force of the magnetic force. While it is movable, it slides along the bottom of the base spike 2 from inside the space 5 in conjunction with the spike 3 due to magnetic attraction, and comes into flat surface contact with the bottom surface of the spike 3 when the spike 3 is protruding. This spike tire has a magnetic extensible spike, which is provided with a stopper 6 which is retracted into a space 5 by the repulsive force of the magnetic force to retract the spike 3 to the bottom of the base spike 2.