JPH0717225A - Non-slip device for tire - Google Patents

Abstract

PURPOSE:To embody the improvement of productivity and cost reduction, by making a pair of attaching discs applicable to plural kinds of pitch circle radii and pitches. CONSTITUTION:This device is a contileer type non-slip device for tire 1 in which an attaching disc 3 is mounted on the outside of a wheel concentrically through wheel nuts 11, and a rotating handle 6 for the attaching disc 3 and a moving-free stopper 7 are provided, and in the attaching disc 3 one set of fitting holes 13A, 15B and attaching holes 14A, 16B are provided on pitch circles PCA, PCB of two kinds of radii PA, PB. In addition to those, each one set of wheel nut fitting holes 13A4, 13A5, 13A6, 15B4, 15B5, 15B6 and attaching holes 14A4, 14A5, 14A6, 16B4, 16B5, 16B6 matching the numbers of wheel nuts (pitches) are arranged: Two holes among the attaching holes are engaged with a circumferential groove 12 by rotating the attaching disc 3 in one direction, and also the stopper 7 enters into one side fitting hole 13A or 15A, touches outer peripheral face of the wheel nut 11 and prevents rotation of the attaching disc 3, so that the attaching disc 3 may be fixed to a wheel shaft by the two wheel nuts 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cantilever type anti-skid device for a tire which is used by being mounted on a tire of an automobile on a snowy road or the like.

[0002]

2. Description of the Related Art As an anti-skid for tires of this type, there is one disclosed in Japanese Patent Laid-Open No. 3-197213. The anti-skid device has a mounting ring concentrically and relatively rotatably connected to a support ring to which a base end of a side belt connected to a tread belt is fixed. Fitting holes that fit into the wheel nuts that are arranged in a row, and mounting holes that engage with the circumferential grooves formed in the wheel nuts by rotating the mounting disc in one direction in the fitted state Then, the rotation handle is fixed to the mounting disc, and a stopper body that enters the fitting hole and abuts the outer peripheral surface of the wheel nut when the mounting hole is engaged with the circumferential groove is provided so as to be movable back and forth. It is a thing.

[0003]

Usually, wheel axle bolts for mounting tire wheels have different pitch circle radii even if the number of wheel bolts is the same. Therefore, in the above-mentioned conventional technology, even if the tire size is the same, the anti-skid tool must be prepared to fit each pitch circle radius of the wheel nut, so the number of anti-skid tools increases and the manufacturing cost increases. However, there is a problem that the cost is high and the productivity is reduced.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to cope with a plurality of types of pitch circle radii and pitches (number of wheel nuts) with one mounting disc. In addition, the present invention provides a non-skid tire that can be mounted on a wheel nut and that can improve productivity and reduce cost.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, according to the present invention, a mounting disc concentrically and removably mounted on the outer surface of a wheel of an automobile, a support ring rotatably mounted on the outer periphery of the disc, and a tire outer peripheral portion are covered. A ring-shaped tread belt to be mounted and a plurality of side belts connected to the belt and having a base end extending in the wheel center direction fixed to a support ring, and a handle for rotating the mounting disc. And a stopper body that can be moved back and forth, and is formed in the wheel nut by rotating the mounting disk in one direction with a fitting hole that fits the wheel nut in the mounting disk. A mounting hole that engages with the circumferential groove is formed, and when the mounting hole is engaged with the circumferential groove, the stopper body enters the fitting hole and contacts the outer peripheral surface of the wheel nut. In the stopper, the mounting circle The fitting holes and the mounting holes provided on each of the plurality of pitch circles having different radii are for fitting stopper bodies and wheel nuts, one set each, and at least one set for fitting wheel nuts at various pitches. The mounting disk is fixed by at least two wheel nuts.

[0006]

According to the present invention, the mounting disc of the anti-skid device for tires faces a wheel having wheel nuts arranged on a pitch circle of a kind radius, and at least one wheel nut is fitted with a fitting hole. At the same time, one wheel nut is fitted in the fitting hole into which the stopper body fitted in the turning handle is fitted, and then the turning handle is operated to turn the mounting disc in one direction. At the same time that the mounting holes are engaged with the circumferential grooves of the two wheel nuts, the stopper body enters the fitting holes facing the circumferential grooves and contacts the outer peripheral surface of the tip end of the wheel nut.

In this way, the mounting disc is fixed to the wheel (axle) via at least two wheel nuts. Therefore, when removing the anti-skid device from the tire, after the stopper body is removed from the fitting hole, the turning handle is turned in the opposite direction, and the turning handle is pulled forward to fit the wheel nut. It can be easily removed by disengaging the fitting hole.

It should be noted that, for wheel nuts having different pitches on a pitch circle having a radius of one kind, or for a wheel having wheel nuts arranged at respective pitches on pitch circles having different radii,
The anti-skid device for tires can be attached or detached by the same operation as described above.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawing, reference numeral 1 is a tire anti-skid, and a mounting disk 3 which is concentrically removable from an axle 2 of an automobile,
A support ring 4 mounted on the outer peripheral edge of the disk 3 so as to be rotatable relative to it, a ring-shaped tret belt 5A mounted on the outer peripheral portion of the tire T, and connected to the belt 5A and extended in the wheel center direction. A non-slip member (5) consisting of a number of side belts (5B) whose base ends are fixed to the outer periphery of the support ring (4), a turning handle (6) fixed to the mounting disc (3), and the handle
It consists of the stopper body 7 of the mounting disc 3 fitted in the inside of the body 6.

Four (or five or six) wheel bolts 8 are planted in the wheel mounting portion 2A of the axle 2, and the mounting holes 10 of the wheel (wheel) 9 are fitted into the bolts 8. The wheel 9 is detachably fastened with the wheel nut 11. The wheel nut 11 has a cylindrical tip, and a peripheral groove 12 is formed in the vicinity of the front surface of the end surface of the wheel nut 11. The mounting disk 3 is mounted using the peripheral groove 12.

An outer peripheral edge of the mounting disc 3 is engaged with an inner peripheral portion of the support ring 4 so as to be fitted on inner and outer surfaces thereof, and is relatively rotatable. In addition, the mounting disk 3 has a pitch circle radius P of a kind (large diameter) of the wheel nut 11A.
A kind of fitting holes 13A4,1 for four, five and six wheel bolts 8 arranged on the pitch circle PCA corresponding to A
3A5, 13A6, 13A and one type mounting hole 14A4, 14A5, 14A6, 14A,
Four, five and six wheel bolts 8 arranged on the pitch circle PCB corresponding to the pitch circle radius PB of the wheel nuts 11B of different types (small diameters). Each of the different fitting holes 15B4, 15B5,
15B6, 15B and different mounting holes 16B4, 16B5, 16B6 are provided.

The mounting hole 14A5, the fitting hole 15B4, and the mounting hole 16
B4 and fitting hole 15B5 partially overlap in the circumferential direction, but the mounting hole
14A5 and 16B4 have shapes and dimensions sufficient to be fitted into and engaged with the tip peripheral grooves 12 of the wheel nuts 11A and 11B of one kind and different kinds, respectively. Also, one and different mounting holes
14A, 14A4, 14A5, 14A6, 16B, 16B4, 16B5, 16B6 are continuously formed in the circumferential direction from the respective fitting holes 13A, 13A4, 13A5, 13A6, 15A, 15A4, 15A5, 15A6. And each mounting hole 14,16
Is smaller than the outer diameter of the tip of the wheel nuts 11A and 11B, and has a diameter that is almost the same as that of the circumferential groove 12.When the fitting holes 13 and 15 are fitted to the wheel nuts 11A and 11B, the mounting disc 3 By rotating, the mounting holes 14 and 16 are fitted into and engaged with the circumferential groove 12,
The wheel nut 11 is designed to prevent movement of the mounting disk 3 in the axial direction.

Then, the fitting holes 13A, 15A and the mounting holes
14A and 16A are provided at symmetrical positions with respect to the center of the mounting disc 3, and are one of the wheel nuts 11A and 11B of one kind or different kinds.
One is always fitted and engaged, the other one wheel nut 11A
Or 11B with respect to the fitting hole 13A or 15B by 90 °, 72
The fitting holes 13A4, 13A5, 13A6, 15 provided at intervals of ° and 60 °
B4,15B5,15B6 and mounting holes 14A4,14A5,14A6, 16B4,16B5,
It is adapted to be fitted and engaged with any one of 16B6, and the mounting disk 3 is fixed to the wheel mounting portion 2A via two wheel nuts 11.

The handle 6 is a handle for rotating the mounting disc 3, and a screw 17 is used so that the central portions of both ends thereof coincide with the centers of the mounting holes 14A and 16B provided in the mounting disc 3. A stopper body 7 having a hollow shape and a substantially similar shape is fixed to the inside of the handle 6 so as to be slidable in the axial direction of the wheel nut 11. The stopper body 7 includes flat plate-shaped stopper pieces 19A and 19A at both ends of a grip body 18 having a U-shape in a side view.
B is attached with screws 20. A coil spring 21 is provided between the grip body 18 and the handle 6 to urge the grip body 18 toward the mounting disc 3 side, and the stopper pieces 19A and 19A.
B is inserted into each of the fitting holes 13A and 15B, and the stopper pieces 19A and 19B are moved to the fitting holes 13A and 15A by moving the grip body 18 to the handle 6 side against the coil spring 21. To leave the room.

The center of the stopper pieces 19A, 19B is
They are aligned with the centers of the corresponding fitting holes 13A and 15B, respectively.
The stopper body 7 is always at a fixed position with respect to the mounting disc 3, and the fitting hole 13A or 15B is inserted into the wheel nut 11A.
Or when it is fitted to 11B, the stopper piece 19A or 19B comes into contact with the tip end surface of the wheel nut 11A or 11B and retracts, but the mounting disc 3 moves in one direction (the direction indicated by the arrow (a) in Fig. 3). Rotate to attach the mounting holes 14A, 16B, etc. to the wheel nut 11
When engaged with the circumferential groove 12 of A, 11B, the stopper pieces 19A, 19
B moves away from the tip surfaces of the wheel nuts 11A and 11B and comes off, and at the same time, the biasing force of the coil spring 21 causes the fitting hole 13
Enter into A or 15A and the side surface is wheel nut 11A
Or contact with the outer peripheral surface of 11B.

In this way, the stopper piece 19A or 19B
However, when the mounting disc 3 is fitted and engaged with the fitting hole 13A or 15B of the mounting disc 3, the mounting disc 3 is prevented from rotating, and
The engagement between the circumferential groove 12 and 14A or 16B is retained. It should be noted that the mounting hole 14A that engages with the circumferential groove 12 in combination with the mounting holes 14A and 16B
Any one of 4,14A5,14A6, 16B4,16B5,16B6
Of course, the engagement state is maintained by the stopper piece 19A or 19B.

When removing the mounting disk 3 from the wheel nut 11, the gripping body of the turning handle 6 and the stopper body 7 is used.
While holding 18 and mount the stopper piece 19A or 19B
After retracting from the fitting holes 13A, 15B of 3, the mounting disk 3 is rotated in the opposite direction shown by the arrow (B) in FIG.
By making B, 13A4, 15B4, etc. face the wheel nut 11A or 11B, they can be easily and quickly removed.

According to the above-mentioned embodiment, in the case of one type (large diameter) of the wheel nut 11A, the mounting holes 14A and 14A4 are engaged with the circumferential groove 12 in the case of the four wheel bolt 8 and the five wheel bolt is used.
In the case of 8, the mounting holes 14A and 14A5 engage with the circumferential groove 12, and in the case of the six-wheel bolt 8, the mounting holes 14A and 14A6 engage with the circumferential groove 12. Also, in the case of different type (small diameter) wheel nuts 11B, the mounting holes 16B and 16B4 are engaged with the circumferential groove 12 when the four wheel bolts 8 are used, and the mounting holes 16B are used when the five wheel bolts 8 are used.
B and 16B5 engage with the circumferential groove 12, and in the case of the six-wheel bolt 8, the mounting holes 16B and 16B6 engage with the circumferential groove 12.

The present invention is not limited to the above embodiment, but the design can be changed as appropriate, and for example, the stopper body 7 can be formed by integrally forming the grip body 18 and the stopper piece 19.

[0020]

As described above, according to the present invention, the mounting disk which is concentrically and detachably mounted on the outer surface of the wheel of the automobile, and the support which is rotatably mounted on the outer periphery of the disk as described above. A ring, a ring-shaped tread belt to be mounted on the outer peripheral portion of the tire, and a non-slip member composed of a number of side belts connected to the belt and having a base end extending in the wheel center direction fixed to a support ring. A fitting hole that consists of a rotating handle for the mounting disk and a stopper body that can move back and forth, and a fitting hole that fits into the wheel nut on the mounting disk, and then rotates the mounting disk in one direction with this fitting hole fitted. By forming a mounting hole that engages with the circumferential groove formed in the wheel nut,
A fitting provided on the mounting disc in a tire slipper, wherein the stopper body enters the fitting hole and abuts the outer peripheral surface of the wheel nut when the mounting hole is engaged with the circumferential groove. The holes and the mounting holes are provided on a plurality of pitch circles having different radii, one set for each stopper body and wheel nut fitting, and at least one set for fitting wheel nuts at various pitches. At least 2 plates
Since it is characterized in that it is fixed by one wheel nut, one set of anti-skid devices is used for axles 2 with different wheel wheel nut pitch circle radii and different pitches.
Can be mounted via its wheel nut,
It is possible to significantly reduce the types of anti-skid devices for tires, thereby improving productivity and reducing costs.

[Brief description of drawings]

FIG. 1 is a partially omitted front view showing an embodiment of the present invention.

FIG. 2 is a central longitudinal side view of the embodiment.

FIG. 3 is an exploded perspective view of a main part of the embodiment.

FIG. 4 is an enlarged front view of the mounting disc.

[Explanation of symbols]

 1 Tire non-slip device 2 Axle 2A Wheel mounting part 3 Mounting disc 4 Support ring 5 Anti-slip member 5A Tread belt 5B Side belt 6 Rotation handle 7 Stopper body 9 Wheel 11, 11A, 11B Wheel nut 12 Circumferential groove 13A, 13A4,13A5,13A6,15B, 15B4,15B5,15B6 Mating hole 14A, 14A4,14A5,14A6,16B, 16B4,16B5,16B6 Mounting hole PA, PB Pitch circle radius PCA, PCB pitch circle

Claims (1)

[Claims] 1. A mounting disk which is concentrically and removably mounted on the outer surface of a wheel of an automobile, a support ring rotatably mounted on the outer periphery of the disk, and a tire outer peripheral portion. A ring-shaped tread belt and a plurality of side belts connected to the belt and having a plurality of side belts whose base ends extending in the wheel center direction are fixed to a support ring;
A fitting hole that consists of a rotating handle for the mounting disk and a stopper body that can move back and forth, and a fitting hole that fits into the wheel nut on the mounting disk, and then rotates the mounting disk in one direction with this fitting hole fitted. To form a mounting hole that engages with the circumferential groove formed in the wheel nut, and when the mounting hole engages with the circumferential groove, the stopper body enters the fitting hole to form an outer peripheral surface of the wheel nut. In the anti-skid device for abutting, the fitting hole and the mounting hole provided in the mounting disk are provided on a plurality of pitch circles of different radii, one set each for a stopper body and a wheel nut for fitting. And, for at least one set of wheel nuts for each pitch provided,
An anti-skid device for a tire, characterized in that a mounting disc is fixed by at least two wheel nuts.