JPH0444403Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) This invention is related to spiked tires, which are essential for cars in snowy areas, and is based on a new structure to deal with dust pollution caused by their use. The present invention aims to provide a cover for spiked tires.

(Prior Art) Nowadays, we have become a fully motorized society, and spiked tires play an extremely important role as a safety measure for cars in winter in snowy areas. However, as snow removal measures have become more effective in urban areas and surrounding areas, snow has disappeared from roads even in snowy areas, and drivers are now driving in dry conditions no different from normal roads, causing spikes. This inevitably scrapes the road surface and damages it in a short period of time, and the scraped dust flies up into the air and is attached to or inhaled.
Trees are beginning to have a negative impact not only on trees but also on the human body, and are becoming a major social problem.

As a result, some local governments have recently begun to ban the installation of spiked tires, and some are even offering incentives for people to change to stud-less tires.

Under these circumstances, the industry is actively working to develop tires with new structures that have performance comparable to spiked tires, and research to increase braking force without using spike pins at all, such as Part 1.
For example, developing and putting into practical use a studless tire made of the above-mentioned special material with a unique tread pattern, or emphasizing the braking force of the spike pins so that the spike pins move in and out as needed. Research into tires with special structures, for example, although they have not yet reached the point of being commercially available, we are making use of shape memory alloys to automatically move the pins in and out by sensing the road surface temperature. Various proposals have been made, such as incorporating a tube for pushing out the pin in the tread and adjusting the air pressure in the tube as necessary to make it easy to insert and remove the pin. Ta.

All of these previous development directions rejected the spiked tires that had been on the market so far and sought to find tires with a new structure to replace them, and they were aimed at changing tires from snow-free roads to snow-covered roads. It all depended on how the problem was set: how to increase the braking force of tires at the time, and it would be difficult to reach the goal unless breakthroughs were made that fundamentally changed the structure of tires up until then. However, it also had the disadvantage that it took too much time and money to develop, making it difficult to implement current countermeasures.

This idea replaces the previously difficult development method and allows drivers to use the spike pins of spiked tires installed on snowy roads to repair the road surface when going from a snow-covered road to a snow-free road. We have proceeded with development to deal with the problem of how to prevent damage, and have finally succeeded in realizing a cover for spiked tires with a novel structure having the structure described in detail below.

(Structure of the invention) As clearly understood from the representative embodiment shown in the drawings, the spiked tire cover of this invention has a length and width that can exactly cover the outer circumferential surface of the spiked tire S. A cover main body 1 made of rubber or synthetic rubber, with both edges along the longitudinal direction formed into rising edges 11 of an appropriate height;
The outer surface has a tread pattern 13 for normal tires, and the inner surface has at least spike pins S.
1 is the pin point absorption surface 14, and the rising edge 11 of the cover main body 1 has metal fitting attachment portions 12, 12 at appropriate intervals, and the engaging joint portions 15, 16 are provided at both ends in the longitudinal direction. It consists of a structure provided respectively.

The cover main body 1 is shown in the overall perspective view in FIG.
As can be understood from the overall perspective view of the spiked tire shown in the figure, it is approximately rectangular with a width and length that correspond to the tire size, and its longitudinal side edges are designed so that it can be wrapped around the outer periphery of the spiked tire S. Rising portions 11, 11 are formed to give a gutter-like appearance.

The metal fitting attachment parts 12, 12, . , it may be formed separately from the rising edge 11, and may be integrated with appropriate metal fittings (for example, eyelets, etc.), sewing, or other means.

A band fitting 2, such as an S tube or a ring, for hooking or passing the tightening band 3 through is attached near the tip thereof.

As shown in FIG. 2, the ground contact surface 13 on the outer surface of the cover main body 1 is formed in a tread pattern that is commonly adopted as a normal tire, and does not interfere with normal driving.

On the other hand, the pin tip absorbing surface 14 on the inner surface has a structure capable of absorbing at least the tips of the spike pins S1 of the spiked tire S to be mounted, for example, as in the embodiment shown in FIG. or use a soft material such as an elastic rubber material for the part where the tip of the spike pin S1 may come into contact (in reality, the driving arrangement of the spike pin S1 varies depending on the manufacturer, The tip of the spike pin S1 may bite into the inside of the cover main body 1 during installation and running, causing cracks in the cover main body 1. The structure must be such that it will not cause damage.

The interlocking joints 15 and 16 formed on both longitudinal edges of the cover main body 1 have a concave groove on one side and a convex strip on the other side, as in the embodiment shown in FIG. 1, and are overlapped and joined when installed. In addition to having a structure that does not create any steps, the edges of each other have a zigzag structure similar to the interlocking structure of fasteners, so that they are interlocked and prevented from disengaging. It is possible to adopt various types of interlocking structures, such as a structure in which a stopper bar is inserted in a comb-like manner from the side.

In the figure, 17 is the above-mentioned interlocking joint 15, 1
In order to ensure the meshing state of the parts 6 and 6, the end fitting attachment part is shown to have the effect of drawing the respective joint parts inward toward each other.

As shown in the overall perspective view in Figure 2 and the vertical cross-sectional view in Figure 3, the spiked tire cover of this invention, which has the structure as described above, is designed for use on snowy roads and is designed to be used with spiked tires at all times. In addition, when using on snow-free roads that are well-removed in and around urban areas, or even in rural areas, you should drive with the spiked tire cover of this invention installed, and drive on snowy roads. It is to be removed only when it is about to be removed.

(Effects) Even in snowy regions such as Tohoku, it can be said that the range of vehicles driving during normal economic activities is currently mostly on roads that are well-removed from snow.

Therefore, in practice, keeping spiked tires on at all times for snowy roads where there are few opportunities to drive is the most reliable way of braking for safety in case of snowy roads. No, it is inherently uneconomical and irrational, and in fact, many drivers are fully aware of this before installing and using it.

However, when it comes to the actual problem, it takes time and effort to drive with normal tires on and then change to spiked tires when you hit a snowy road. There is also the physical problem of having to keep it in place, making it almost impossible to implement. On the other hand, even when wearing a chain, it makes driving uncomfortable and the braking ability unstable, so once you learn about the performance of spiked tires, you will no longer use the chain.

In response to this reality, the outside of the spiked tire is always covered with the spiked tire cover of this invention, and the tire runs under exactly the same conditions as a normal tire.
If you easily remove the cover at a place where you absolutely need to run on spiked tires, you can run on spiked tires that are most resistant to snowy roads, so even if you are wearing spiked tires, you can still drive on the most frequently used urban areas. There is no risk of damaging the road surface when driving around the area, and there is no risk of causing dust pollution and making it uncomfortable.

Therefore, drivers no longer feel guilty about wearing spiked tires, and they can be said to be of great help in practicing safe driving during the winter, both in practice and mentally.

This idea, which allows for this kind of response, not only eliminates concerns about the safety of studless tires, which have recently been commercially available as an alternative to spiked tires, but is also currently being developed and researched and is expected to be put into practical use in the future. Even compared to tires with a structure in which spike pins can be moved in and out as needed, it is certainly cheaper to use, so it is more expensive as a tire aid in snowy regions. It is something that can be evaluated.

Moreover, it has a simple structure and is easy to manufacture, and the method of handling it does not lose its shape. Simply move the spike tire S between the rising edges 11, wrap it around it, and hang the tightening band 2. Therefore, it is easier to attach the chain than the conventional one, and since the pin tip absorbing surface 14 is formed on the inner surface and the pin tip is completely adhered, there is no discomfort like when attaching the chain. In addition, it is possible to prevent the wear of expensive spiked tires, which would normally lose their function as a spiked tire in about two years, but retain their function as a spiked tire for a considerable period of time. It has the unexpected feature of being able to continue to use spiked tires, and there is a high possibility that drivers themselves will adopt it even without administrative guidance or other regulations or incentives, and it will help eliminate the various negative effects caused by spiked tires. It will be very powerful.

As mentioned above, the spiked tire cover of this invention has excellent features that allow it to respond in an extremely timely manner to the problem of dust pollution, which has become an urgent issue in the motorized society, and it also has excellent safety features. There is nothing better in terms of economic efficiency, and it is expected that it will be highly evaluated from all quarters.

[Brief explanation of drawings]

The drawings are based on representative embodiments;
FIG. 1 is an overall perspective view, FIG. 2 is an overall perspective view in its installed state, and FIG. 3 is a longitudinal cross-sectional view showing its installed state on a spiked tire. 1... Tire main body, 11... Same rising edge, 12
...The same metal fitting attachment part, 13...The same ground plane, 14...
...Same pin tip absorption surface, 15 and 16...Same meshing joint, 17...Same end fitting attachment part, 2...Band metal fitting, 3...Tightening band, S...Spike tire, S1...Same... spike pin.

Claims (1)

[Scope of utility model registration request] An outer cover mainly made of rubber or synthetic rubber, which has a length and width that can cover the outer circumferential surface of a spiked tire, and has both longitudinal edges formed into rising edges of an appropriate height. The surface has a tread pattern for regular tires, the inner surface has at least the part that touches the spike pin as a pin tip absorbing surface, and the rising edge of the main cover has metal fittings at appropriate intervals, and both ends of the same longitudinal direction. A spike tire cover with interlocking joints on each edge.