JPS6215105A

JPS6215105A - Movable spike for snow tire

Info

Publication number: JPS6215105A
Application number: JP60153382A
Authority: JP
Inventors: Masato Kusaka; 日下　正登
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-07-13
Filing date: 1985-07-13
Publication date: 1987-01-23

Abstract

PURPOSE:To reduce the dust pollution caused by spikes by composing the contained spike in such a way that it is pulled inside or projected out depending on the condition. CONSTITUTION:A holder which holds a spike 4 within a tire, is composed of a movable section 3 which is made of a metal having a high thermal expansion coefficient, and the movable metal section 3 is heated up and expands due to heat generated while a car is running. Thus, this configuration enables the spike, which comes in contact with the surface of a road before the car starts, to be pulled inside the tire acting as a normal tire when the car is running. And as the tire is cooled while being on a snowy road and the like, the spike is projected out functioning as a spike tire. Accordingly, this configuration is capable of reducing the dust pollution caused by the spike.

Description

【発明の詳細な説明】この発明はタイヤのスパイクを可動出来る様にしたもの
である。従来のスパイクタイヤはスパイクが固定されて
おり、凍結また積雪道路での走行は制動性能が優れてい
るが、無凍結の道路ではアスファルト粉塵公害の先見と
して社会問題となっている。そこで本発明では凍結、積
雪路ではスパイクタイヤ、無凍結路ではノーマルタイヤ
として使用出来る様にし、タイヤの履き替え、またタイ
ヤチェーン脱着の煩わしさを解消し、更にこのようなア
スファルト粉塵公害を一気に解決するものである。これ
は熱膨張を利用してスパイクを昇降させるもので、走行
前にはスパイクが道路面に接触しているが、走行によっ
てタイヤが加熱し、スパイクを支える熱膨張率の高い金
属が膨張してスパイクを道路面から引き離してノーマル
タイヤとなる。また、積雪路、凍結路では膨張した金属
が元に戻りスパイクタイヤとして安定した走行性が得ら
れる。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a movable tire spike. Conventional spiked tires have fixed spikes and have excellent braking performance when driving on frozen or snow-covered roads, but on roads without ice, asphalt dust pollution has become a social issue. Therefore, in the present invention, it is possible to use spiked tires on frozen and snowy roads, and normal tires on non-frozen roads, eliminating the trouble of changing tires and attaching and detaching tire chains, and also solving such asphalt dust pollution at once. It is something to do. This uses thermal expansion to raise and lower the spikes. Before driving, the spikes are in contact with the road surface, but as the tire heats up while driving, the metal with a high coefficient of thermal expansion that supports the spikes expands. The spikes are pulled away from the road surface and become normal tires. In addition, on snowy or frozen roads, the expanded metal returns to its original state and provides stable driving performance as a spiked tire.

[Brief explanation of the drawing]

第１図は凍結路を走行中のスパイク第２図は無凍結路を走行中のスパイク第３図は本発明の斜視図１はタイヤ２は本体３は熱膨張率の高い金属で作られた可動部分４はスパイ
ク図　　　　面第２図第３図Figure 1 shows spikes while driving on an icy road. Figure 2 shows spikes while driving on an ice-free road. Figure 3 is a perspective view of the present invention. The movable part 4 is spiked in Figure 2 and Figure 3.

Claims

[Claims] Built-in spikes move up and down depending on the situation to bring the tires into contact with the road contact surface. The spike movable tire configured as described above.