JPS63125412A - Snow tire with movable spike - Google Patents

Abstract

PURPOSE:To facilitate the retraction of a spike at the time of traveling on a non-frozen road and prevent dust pollution by connecting said spike which is embedded under the tread face of tire to an operated part and operating said operated part via an operating member to project and retract said spike. CONSTITUTION:Each of a number of spikes 2 which are embedded under the tread face of a snow tire 7 is normally held in a position in which the spike 2 is not projected out of the traveling face of the tire 7 by means of a spring 4 and via a bendalbe and flexible connecting metal fitting 3. Also, an operated lever 5 is rotatably supported by the end part on the opposite side to the spike 2 installing side end part of the metal fitting 3 being positioned on the outer part of tire, and a operated roller 8 is provided on he end part of the level 5. And, when the operated roller 8 is retained by a power device 12 of hydraulic pressure or magnet, etc. due to an external, the spike 2 is projected out of the tread face against the spring 4 and via a pin 10 and the connecting metal fittings 3, to function as an antiskid member.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the improvement of snow tires with spikes for automobiles, and by using the tire of the present invention, the present invention in which snow tires with spikes are used on roads can be improved. Relates to eliminating damage and eliminating urban dust pollution during winter.

PRIOR TECHNOLOGY Since conventional spiked tires simply have spikes embedded in their outer peripheries, it would be ideal to drive the car on both frozen and non-frozen roads while changing tires. However, in practice, it is nearly impossible to change tires frequently, so even on normal roads that are not icy, it is customary to drive with spiked tires on for driving safety.

Problems to be Solved by the Invention Due to the above reasons, the present invention attempts to break away from the current state of road damage and dust pollution, and to run with spiked tires only on frozen roads, that is, roads that require spiked tires. This makes it possible to solve the problem of dust generation.

Means for Solving the Problem The present invention allows the driver to check the road condition while driving and, if the road is frozen, to operate from inside the vehicle.
This is a method to immediately change the tires to ones with spikes so that you can safely pass through the frozen road, and after passing the frozen road, you can drive again as the original rubber tires. The main point is that the switch can be made at the will of the person.

The spikes provided on the working tire are connected to the side surface of the tire using a connecting fitting, etc., and the actuated part is provided in this part, while the actuating tool is
By activating the actuated part by the driver's operation, the spikes can be freely extended or retracted while the vehicle is running by forming a structure that causes the spikes to protrude or retract. .

Embodiment 1 FIG. 1 is a detailed diagram of the spike unit 1. It consists of a spike 2, a connecting fitting 3, a spring 4, an actuated lever 5, and a guide tube 6, and the rest except the actuated lever 5 is embedded inside the tire 7. Normally, the spikes 2 are held by the springs 4 via the connecting fittings 3 at a position where they do not protrude from the running surface of the tire 7. An actuated roller 8 is attached to the end of the actuated lever 5, and an actuated roller 8 is attached to the end of the actuated lever 5.
1 is an instruction from the outside and when the driven roller 8 is pressed by a power device 12 such as hydraulic pressure or a magnet, the spike 2 protrudes against the spring 4 through the pin 10 and the connecting fitting 3, and the spike tire It is effective as a.

FIG. 2 shows a state in which the spike unit 1 is attached to the tire 7, and an example of the actuator 11. In order to project the spike 2, the power unit 12 pulls the lever 15, and the striker 16 pushes the roller 8 of the actuated lever 5, causing the spike 2 to project. Stopper 17
is a stopper that touches the lever 15 to prevent the spike 2 from jumping out excessively, and is adjustable.

The number of spike units 1 to be provided on the tire 7 is preferably such that one or more spikes 2 are in contact with the ground when the tire 7 is in contact with the ground.

FIG. 3 shows another embodiment, in which the actuated part 18 is made up of an actuated roller 19, a pawl 20, a ratchet 21, a ratchet release fitting 22, and a spring 4. When the spikes 2 are made to protrude, by pushing the actuated roller 19, the spikes 2 protrude and the pawls 20 are caught on the ratchets 21, preventing them from returning. This operation can be performed with the spikes 2 not in contact with the ground, so it can be operated with a small force. Another feature is that the protruding state can be maintained without contact after the first operation. The length of the connecting fitting 3 is adjusted using the adjusting fitting 14.

When returning the spike 2, the ratchet is released by pushing the ratchet release fitting 22, and the spring 4 allows the spike 2 to be retracted, and the force required at this time is small.

A further feature of this method is that the entire actuated part 18 can be closed with the external cover 23, and the only protruding parts from the cover are the actuated roller mounting shaft 24 and the ratchet release roller mounting shaft. 25, and all of them operate vertically, so they can be constructed to prevent dust from entering.

As yet another example, a method can be considered in which a strong electromagnetic force is generated in the actuating section to move the actuated roller attachment shaft 24 and the ratchet release roller attachment shaft 25. The feature of this case is that the spike 2 can be operated completely without contact, which simplifies the structure of the operating tool and is advantageous in terms of longevity.

Effects of the Invention The present invention has the above-mentioned structure, and can switch between spiked tires and tires without spikes by an operation that has not been possible until now, so it can be used as a spiked tire only when necessary, reducing road damage. This will help prevent urban dust pollution.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and are sectional views of FIGS. 1, 2, and 3. 1...Spike unit 2...Spike 3...Connecting metal fitting 4...Spring 5...Actuated lever 6...Guide cylinder 7...Tire 8...Actuated roller 9...Tire wheel 10...Actuated tool pin 11...Actuation tool 12...Power unit 13... Axle 14... Adjustment fitting 15... Lever 16... Striker 17... Stopper 18... Actuated part 19... Actuated roller 20... Pawl 21... Ratchet
22... Ratchet release fitting 23... External cover 24... Actuated roller mounting shaft

Claims (1)

[Claims] In snow tires with spikes that can run on frozen roads, the spikes are connected to the operated part through a connecting fitting,
A snow tire with spikes in which the spikes can be protruded or retracted by actuating the actuated part via an actuation tool.