JPH08332816A - Tire antiskid device - Google Patents

Abstract

PURPOSE: To quickly use a slip preventing means as required by converting the reciprocating motion of a cylinder shaft into the rocking of a rocking arm, and protruding the circular bodies of a rotor ring into the gap between a tire and the road surface via the rocking. CONSTITUTION: When a cylinder shaft 12 is protruded, an arm 16 is rotated, and a rocking arm 20 is rocked and displaced by about 90 deg.. Since a rotor ring A is fitted to the end of the rocking arm 20, a circular body located at the end section of a flexible cord-like body fixed to the rotor ring A starts rotating in contact with the side face of the tire inside, and a circular body at the adjacent location is inserted between the tire and the road surface by this rotation. A load is applied to the circular bodies, the contact area between the road surface and the circular bodies is smaller than the contact area between the normal tire and the road surface, larger frictional force can be obtained, and the slip of the tire can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a tire from slipping when an automobile runs on a snow-covered road.

[0002]

2. Description of the Related Art Conventionally, a tire chain mounted on a tire is often used as a means for stabilizing the running on a snow-covered road surface of an automobile. There is no means of moving the slip ring in and out of the loop.

[0003]

Conventionally, winter tires have been used in the snowy regions for stable running of automobiles in winter. Previously, spiked tires with spike pins embedded in the tire tread were used a lot, but due to dust pollution, the use of them has been banned in many areas. Currently, studless tires are widely used as an alternative to the spiked tires. But,
This studless tire does not generate dust because it does not use pins, but it cannot obtain the braking force of spike tires. Also, in high traffic areas such as cities, the studless tires result in polishing the snow-covered road surface. Especially at intersections and when waiting for traffic lights, the brakes cause some slip between the tires and the road surface, causing the road surface to become a mirror surface phenomenon, and when the vehicle is suddenly braked, the tires are locked and the braking effect is minimal. There is a risk of a rear-end collision. Therefore, careful movement is required for both the driver and the pedestrian, and the movement of the pedestrian and the progress of the vehicle become slow, which is also a cause of traffic congestion. It is also practiced to attach a chain to the tire surface, but if you feel that it is necessary to hook the chain while driving, the car will be stopped and the driver etc. will get off the chain, but on a smooth road surface Due to this, injuries due to falls during work occur every year. The present invention has been invented to solve the above-mentioned problems relating to the conventional tire slip prevention method, and an annular body for slip prevention is provided between the tire and the road surface by turning the switch ON / OFF. By doing so, it is an object of the present invention to provide a device which can promptly use the slip prevention means when necessary.

[0004]

As a means for solving the problems, the present invention uses a system in which a rotatably supported rotor ring is moved in and out between a tire and a road surface by a swing actuator. That is, around the plate-shaped center plate, a plurality of flexible cord-shaped members each having a ring-shaped body fixed to the tip thereof are radially fixed, and the rotor ring having the above configuration is provided, while the cylinder shaft is included. In the casing attached to the cylinder,
An oscillating shaft whose both ends are axially supported is provided in the upper and lower parts of the casing, and an arm whose end is fixed is provided on the oscillating shaft, and the cylinder shaft end of the cylinder and the arm are rotatably connected to each other. A crank is provided to provide the actuator having the above-mentioned configuration, and a swing arm end that is orthogonal to the lower end of the swing shaft exposed from the lower portion of the casing is rotatably mounted in the center plate,
The above rotor ring and actuator are installed in the vicinity of the drive wheels of the automobile, and the reciprocating motion of the cylinder shaft that moves in and out due to the increase or decrease of the fluid pressure injected into the cylinder from the separately installed fluid supply device is converted into the swing of the swing arm. ,
This swing causes the annular body of the rotor ring to move in and out of the gap between the tire and the road surface. The present invention is a tire anti-slip device having the above-mentioned configuration.

[0005]

In order to use the present invention, first, the device is attached to the drive wheel side of the automobile at an appropriate position such as an axle fixing tube. A fluid supply device for driving the cylinder is required as an accessory to this device, and this supply device is also installed in a proper place of the vehicle and connected to the cylinder by a hose. Also, this supply device is connected to a power source such as a battery via a switch. By providing this switch near the driver's seat, the operation of this device can be performed quickly. When the preparation is completed and the tire slips or the danger of slipping is felt, the working fluid is supplied to the cylinder by the switch ON and the cylinder shaft projects. The cylinder shaft is connected to the arm via a crank, and the swing arm is attached to the lower end of the swing shaft that fixes the arm. Therefore, as shown in FIG. 4, when the cylinder shaft projects, the arm rotates, and the swing arm swings to change its position by about 90 °. Since the rotor ring is attached to the end of the swing arm, the annular body located at the end of the flexible string-like body fixed to the rotor ring first comes into contact with the inner side surface of the tire to start rotation, By this rotation, the annular body located at the adjacent position is inserted between the tire and the road surface. Therefore, the load from the tire is applied to this annular body, and the contact area between the road surface and the annular body is smaller than the contact area between the normal tire and the road surface, so that a larger friction force can be obtained. It is possible to prevent tire slip. As the tire rotates, the annular body also rotates and enters the lower surface of the tire one after another, so that tire slip can be continuously prevented. Since the center plate and the annular body are connected by the flexible string-like body, the frictional force acting between the tire ground contact surface and the road surface does not act on the center plate via the annular body. In other words, the rotor ring makes a rotational movement, but when the annular body is sandwiched between the tire and the road surface, the annular body moves linearly, so the distance between the center plate and the annular body changes, but It is possible to flexibly deal with deformation of the body. When releasing the operation, the switch is turned off to reduce the fluid pressure in the cylinder, and the spring built into the cylinder pulls the cylinder shaft into the cylinder. Return to the state. As described above, the slip of the tire can be prevented by freely changing the position of the rotor ring by turning the switch on and off.

[0006]

Embodiments of the present invention will be described below. FIG. 1 shows a rotor ring. Reference numeral 1 denotes a center plate formed by processing a metal disc, and a step portion is provided inside the center plate, and a radial bearing 2 is fitted in the step portion. A retaining ring 3 is for retaining the bearing, and is a donut-shaped ring fitted in the center plate step portion. The stepped portion and the retaining ring may be provided with screw portions and screwed together. Reference numeral 4 denotes a fixed ring, which is a cylindrical body fixed to the lower surface in the vicinity of the outer periphery of the center plate in an equal distribution. The end of the wire rope 5 as a flexible string is inserted and fixed in the fixed ring. ing. Also, a similar tubular body is fixed to the other end of the wire rope, one end of the chain ring 6 as an annular body is fixed to the side surface of the tubular body, and another chain ring is combined with this chain ring. There is. A swing arm, which will be described later, is fitted and held in the bearing at the center of the rotor ring.

4 to 5 show a crank type swing actuator for swinging the rotor ring. Reference numeral 10 is a box-shaped split casing, and an air cylinder 11 is screwed to one end of the casing. This air cylinder is a self-resetting type, and when the air pressure is lowered, the cylinder shaft 1
2 is drawn in, and this shaft is projected by the air pressure supply. Then, the air hose 13 is attached through a connecting fitting attached to the rear end of the cylinder. Further, a pair of bearings 14, 14 are provided inside the casing, and the swing shaft 15 is rotatably supported by both bearings. A flat plate-shaped arm 16 is fixed at an intermediate position of the swing shaft. Reference numeral 17 denotes a crank having a U-shaped cross section, which penetrates the upper and lower surfaces of the crank to form two sets of pins 1.
8 and 18 are provided, one end of which is supported by a cylinder shaft end, and the other end of which is supported by a swing arm end by pins. The pin end is screwed with a nut and fixed to the crank. An arm stopper 19 is erected on the lower surface of the lower casing and regulates the movable range of the arm. And the lower end of the swing shaft penetrates the lower surface of the casing and is exposed,
An L-shaped swing arm 20 is screwed to the exposed end, and the tip of the swing arm is fitted and fixed to the bearing in the rotor ring.

FIG. 7 shows a connection system diagram when the device of the present invention is used. In the figure, reference numeral 30 denotes an air supply device, which has an air pump, an air tank, a solenoid valve, etc. built-in. The air in the air tank is kept at a substantially constant pressure by the air supply from the air pump, and the current is supplied to the solenoid valve. The air in the air tank is supplied to the air cylinder via the air hose by the stop and the air in the cylinder is discharged. Although the function of the present invention has been described above, in this example, the center plate and the casing are provided with bearings so that the rotor ring and the swing shaft can be smoothly moved. In addition, a flexible rope-like body is used in combination with a wire rope, and an annular body is used in combination with a metal chain ring, which is highly durable. The cylinder used for the actuator can be either hydraulic or pneumatic, but in this example, an air cylinder is used to reduce the size and weight of the device. It should be noted that the device of the present invention is used by mounting one on each side of the left and right drive wheels, and is adjusted so that both of them operate in synchronization. FIG. 10 shows another embodiment of the present invention in which the chainring at the end of the rotor ring is one each.
The number of chainrings that are used between the tires and the road surface has been increased by using a single piece and combining a plurality of chainrings between adjacent chainrings in four equal distributions. The same effect as that of the rotor ring can be obtained. As described above, according to the present invention, the slip prevention means can be quickly obtained when necessary.

[0009]

According to the present invention, since a rotatable annular body can be freely moved in and out of the lower surface of a tire by fluid pressure, a useful article in which slip prevention means can be quickly taken when necessary. Can be provided.
INDUSTRIAL APPLICABILITY The present invention is particularly effective when traveling at a low speed in a crowded urban area.

[Brief description of drawings]

FIG. 1 is a plan view of a rotor ring of the present invention.

FIG. 2 is an enlarged explanatory view of the cross section of the main part of the center plate of the present invention.

FIG. 3 is an enlarged view of a chain ring portion of the present invention.

FIG. 4 is a plan view in which a main part of an actuator portion of the present invention is cut away.

FIG. 5 is a front view in which a main part of an actuator portion of the present invention is cut away.

FIG. 6 is a front view of the rotor ring of the present invention.

FIG. 7 is a device connection system diagram when the present invention is used.

FIG. 8 is an operation explanatory view of the present invention.

FIG. 9 is an operation explanatory view of the present invention.

FIG. 10 is a plan view of a rotor ring according to another embodiment of the present invention.

[Explanation of symbols]

 1 Center Plate 2 Bearing 3 Retaining Ring 4 Fixed Ring 5 Wire Rope 6 Chain Ring 7 Multiple Chain Ring 10 Casing 11 Air Cylinder 12 Cylinder Shaft 13 Air Hose 14 Bearing 15 Swing Shaft 16 Arm 17 Crank 18 Pin 19 Arm Stopper 20 Swing Arm 30 Air supply device 31 Battery 32 Switch 33 Mounting bracket A Rotor ring B Actuator

Claims (1)

[Claims] 1. A plurality of flexible cords, each having a ring-shaped body fixed to its tip, are radially fixed around a plate-shaped center plate to provide a rotor ring having the above-described structure, and a cylinder shaft. In a casing attached to the cylinder, a swing shaft whose both ends are supported vertically is provided in the casing attached to the cylinder, and an arm having its end fixed to the swing shaft is provided. Is provided with a crank for rotatably connecting the cylinder shaft end and the arm to each other, and the actuator having the above-described structure is provided, and the swing arm end mounted orthogonally to the lower end of the swing shaft exposed from the lower part of the casing is It is mounted rotatably in the center plate, and the above rotor ring and actuator are installed in the vicinity of the drive wheels of the automobile to provide a separate fluid supply. The reciprocating motion of the cylinder shaft that moves in and out due to the increase or decrease in the fluid pressure injected from the device to the cylinder is converted into the swing of the swing arm, and this swing causes the annular body of the rotor ring to move in and out of the gap between the tire and the road surface. Characteristic anti-skid device.