KR100656790B1 - Tire switchable to normal tire and spike tire by single operation as required - Google Patents

Abstract

A tire converted into a general tire and a spike tire according to necessity by simple operation is provided to easily change the general tire into the spike tire or the spike tire into the general tire, to reduce the production cost, and to improve stability and reliability even in a long-term use. A tire converted into a general tire and a spike tire according to necessity comprises a tire main body formed with plural holes along the tire circumference to emerge plural spikes at regular intervals on a tread unit in plural rows, and plural wire passages over the whole tire circumference in a proceeding direction in the tread unit; a gear assembly(10) formed with a screw gear(14) winding/unwinding a wire line by forward/reverse rotation, a pinion gear(15) engaged with the screw gear, and a gear box(16) receiving the screw gear and the pinion gear and fixed with a wheel of the tire; a compression coil spring assembly(20) formed with a moving plate(21) connected with the wire at both sides, a compression coil spring(22) fixed on one side of the moving plate, and a compression coil spring housing(23) receiving the moving plate and the compression coil spring and installed at the rear side of the gear assembly; a first tensile coil spring assembly(30) formed with a first tensile coil spring(31) and a first tensile coil spring housing(32) and installed at the rear side of the compression coil spring assembly; a wire assembly formed with plural wire lines(42a) branched from a single wire line(42) via a wire deflection roller(41) and buried through plural wire passages, and plural wedge bodies(44) connected with the plural wire lines and disposed correspondingly to the plural holes of the tread unit to emerge the spikes; a spike assembly formed with the spikes installed in the hole of the tread unit and mounted with a magnet on the bottom unit, a protrusion unit fitted into a recessed unit engraved on the lateral wall of the hole of the tread unit to prevent the spike from being separated out of the hole, and a cylindrical maintaining chip having an opening unit allowing entry/take-out of the wedge body; and a second tensile coil spring assembly(60) formed with a second tensile coil spring(61) and a second tensile coil spring housing(62) receiving the second tensile coil spring to fix the spring housing with the wheel at the opposite side of the gear assembly.

Description

TIRE SWITCHABLE TO NORMAL TIRE AND SPIKE TIRE BY SINGLE OPERATION AS REQUIRED}

1 is a schematic perspective view of a cut away portion of a tire of the present invention;

Figure 2 is a schematic diagram showing the separation of the components acting on the appearance of the spike in the tire of the present invention of Figure 1;

3 is an enlarged view of the screw gear and the pinion gear of the gear assembly of FIG.

4 is a view showing a method of arranging spikes in a tread portion of a tire according to the present invention.

Figure 5 is a view showing the appearance of the spikes according to the present invention, Figure 5a shows a state in which the spikes when the tire of the present invention is used as a general tire, Figure 5b is a tire of the present invention spike tire The figure which shows the state which the spike protruded when used as.

Fig. 6 is a view showing a cylindrical holding chip separated from spikes by holding a spike in a spike hole for tread part.

7 illustrates an example of the prior art.

8 shows another example of the prior art.

The present invention relates to a tire that can be used as a normal tire on a normal road and a spike tire on a snow road or an ice road, and more particularly, to a tire that can be converted to a general tire and a spike tire as needed in a single operation.

When the vehicle runs on snowy roads, snow chains and snow tires are used to secure vehicle stability. However, there are not only snow-covered sections on winter roads, but also freezing sections, and the entire road surface is frozen. In this case, snow chains or snow tires alone cannot secure vehicle stability. For this reason, spike tires are used to ensure greater road grip of the tires. When used on a normal road, spike tires seriously damage the road, so when the icy section is encountered, the regular tires should be replaced with spike tires, but the effort is too great. In order to solve this problem, tires of both general tires and spike tires have been developed.

There is a form disclosed in Korean Utility Model Publication No. 1287, which has been studied as a conventional tire and a spike tire combined tire (see Fig. 7). However, in this type of spike tire, as shown in FIG. 7, only one spike operating device including the cable 114, the variable position member 120, the spike 118, and the operating lever 116 is installed on the tire. It is easy to see that there must be a large number along the tire circumference. In this case, in order to switch from the regular tire to the spike tire protruding spike 118, a plurality of operating lever 116 must be operated several times while turning the tire one by one, it takes too much trouble. In addition, as can be seen in Figure 7, it is very difficult to provide a means for holding the operating lever in a turned state when the operating lever 116 is turned to protrude the spike.

Another aspect studied as a conventional tire and spike tire combined tire is disclosed in Korean Utility Model Registration No. 20-0168922 (see Fig. 8). In the case of the spike tire, the air tube 220 is injected through the air valve 225 to expand the air tube 220 to protrude the spike 210. However, since the air injected into the air tube 220 is a compressive fluid, when the spike is actually grounded on the road surface, the air in the air tube 220 moves to the place where there is no pressure, avoiding the pressure received from the road surface, and the spike retreats in the protruding state. It does so and does not function as a predetermined spike. Inject high pressure air to withstand the pressure received from the road surface, but to do so, the air tube 220 should be made of a material that can withstand extremely high air pressure, and the air valve 225 for injecting high pressure air through Separate equipment is required, which is not practical because it is too difficult and too expensive to manufacture. In addition, even if a practical method is found, air has a tendency to leak, so if it is used for a long time, air leakage will be inevitable due to deterioration of the device, and it cannot guarantee stable and reliable operation of spike tires.

Therefore, the present invention was devised to solve the above problems of the prior art, and can be easily switched from a general tire to a spike tire or a spike tire to a general tire as needed by a single operation, and the manufacturing cost is low and long-term. It is an object of the present invention to provide a tire capable of ensuring stable and reliable operation even in use.

In order to achieve the above object, the present invention is to form a plurality of holes in which a plurality of spikes can be raised and formed in the tread portion in the form of a plurality of hole rows at regular intervals along the circumferential direction of the tire, the circumference of the tire inside the tread portion A tire body defining a plurality of wire passages over a substantially entire circumference of the tire along the direction; A gear assembly consisting of a screw gear for pulling and releasing wire wires by forward and reverse rotation, a pinion gear engaged with the screw gear, and a gear box for accommodating the screw gear and the pinion gear, the gear assembly being fixed to the wheel of the tire; A compression coil spring assembly comprising a moving plate connected to wires at both sides, a compression coil spring fixed to one side of the moving plate, and a compression coil spring housing for receiving the moving plate and the compression coil spring, the compression coil spring assembly being installed at the rear of the gear assembly; A first tension coil spring assembly comprising a first tension coil spring and a first tension coil spring housing receiving the first tension coil spring and installed behind the compression coil spring assembly; It is branched from a single wire and connected to the plurality of wires and the plurality of wires which are buried through a plurality of wire passages through a wire turning roller, and are located in correspondence with a plurality of holes of the tread portion, and serve to spike the spikes. A wire assembly made up of a plurality of wedge bodies having inclined portions to be formed thereon; A wedge provided in a hole in the tread portion and having a magnet attached to the bottom portion and a protrusion fitted with a recess formed in the side wall of the tread hole to prevent the spike and spike from being held in the tread hole A spike assembly consisting of a cylindrical retaining chip having an opening to allow the sieve to enter and exit; A second tension coil spring assembly comprising a second tension coil spring and a second tension coil spring housing for receiving it, the second tension coil spring assembly being installed by fixing the second tension coil spring housing to the wheel in a position opposite the gear assembly; The gap between the hole rows formed in the tread portion is formed at an interval at which a time point at which both hole rows are not grounded with the road surface when the tread portion portion between the hole row and the hole row is grounded when the tire rolls. The bottom of the hole of the tread portion is provided with a magnetic metal plate corresponding to the magnet of the spike bottom portion, and the pinion gear of the gear assembly is provided with a cylindrical body capable of winding a wire wire. Between the moving plate of the coil spring assembly, the moving plate and the first tension A single tire may be connected to the coil spring, between the first tension coil spring and the wire assembly, and between the wire assembly and the second tension coil spring. And a tire convertible to a spike tire.

In a preferred embodiment of the present invention, the end portion of the cylindrical body attached to the pinion gear is adapted to be provided with a wire wire escape prevention jaw for preventing the wire wire from being detached.

In another preferred embodiment of the present invention, a configuration is adopted in which the wire wire is pulled and released by rotating the screw gear forward and backward by turning the head of the screw gear by hand.

In another preferred embodiment of the present invention, a configuration in which the electric wire is connected to the screw gear and the screw gear is rotated forward and backward to pull and release the wire wire.

In still another preferred embodiment of the present invention, an optical sensor is installed in the electric motor, and a remote control device is provided to pull and loosen the wire by rotating the screw gear forward and backward by remote operation.

In a further preferred embodiment of the present invention, a connecting ring is provided on the wire line between the first tension coil spring assembly and the wire assembly and on the wire line between the wire assembly and the second tension coil spring assembly. Adopt a configuration.

In another preferred embodiment of the present invention, an insulator is provided on the wire between the first tension coil spring assembly and the wire assembly and on the wire between the wire assembly and the second tension coil spring assembly. Adopt a configuration.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. For convenience, the downward direction in FIG. 2 is referred to as "front" and the upward direction is referred to as "rear".

1, 4, and 5, the tire body 1 includes a plurality of holes 4 through which a plurality of spikes 51 can be recessed at regular intervals along the circumferential direction of the tire. It is formed in the tread part 2 in the form, and many wire passages 5 are formed in the tread part 2 over the almost circumference of a tire along the circumferential direction of a tire. The spacing of the hole rows formed in the tread portion 2 is an interval at which a point in time at which both hole rows are not grounded with the road surface when the tread portion portion between the row of holes and the row of holes is grounded when the tire rolls. Formed. This is because when the hole row portion of the tire is grounded, the spike 51 is pressed by the ground to constrain the upward freedom of the spike 51 and consequently the forward movement of the wedge body 44, thus consequently the wedge body 44 is moved forward. This is because the spike cannot be pushed up, but while the tire portion between the hole row and the hole row is grounded, the degree of freedom of the spike 51 is secured, and the wedge body 44 can move forward to push the spike. If so, whether or not both hole rows are not grounded and the tread portion between the hole rows and the hole rows is grounded should be attempted to switch to the spike tire only at that time. When the screw gear 14 is rotated at any time when switching to the spike tire is required, firstly, if both hole rows are not grounded and the tread portion between the hole rows and the hole rows is grounded, of course, immediately 44 pushes the spike 51, and secondly, when any one of the two rows of holes is grounded with the road surface, the first tension coil spring 31 is extended by the length of the wire wound around the pinion gear 15. The wedge body 44 connected to the wire wire 42a is pulled and connected to the wire wire 42a as the first tension coil spring 31 is returned to its original state when the tire is rolled and both hole rows are not grounded with the road surface. Is advanced to push the spike 51 up. At the bottom of the hole 4 of the tread portion 2, a magnetic metal plate 7 corresponding to the magnet 55 of the spike bottom portion described later is provided.

The gear assembly 10 shown in detail in FIGS. 2 and 3 includes a screw gear 14 for pulling and releasing the wire wire by forward and reverse rotation, a pinion gear 15 and a screw gear 14 engaged with the screw gear 14. And a gear box 16 for accommodating the pinion gear 15. The gear assembly 10 may be fixed to the wheel 3 of the tire as shown in FIG. 1. The pinion gear 15 has a cylindrical body 17 on which a wire is wound. An end portion of the cylindrical body 17 may be provided with a wire wire departure preventing jaw 18 for preventing the wire wire from being separated.

Next to the gear assembly 10 is a compression coil spring assembly 20. The compression coil spring assembly 20 includes a moving plate 21, a compression coil spring 22 having one end fixed to one side of the moving plate 21, and a moving plate 21 and a compression coil spring 22. Consists of coil spring housing.

Next to the compression coil spring assembly 20 is a first tension coil spring assembly 30. This first tension coil spring assembly 30 consists of a tension coil spring 31 and a first tension coil spring housing 32 for receiving it.

The wire wire 42 connected to the first tension coil spring 31 is branched from a single wire into a plurality of wire wires 42a. The plurality of branched wire wires 42a are aligned with the plurality of wire passages 5 of the tread portion 2 via the turning roller 41 and extend through the passage 5. A plurality of wedge bodies 44 having inclined portions 43 are connected to the wire lines 42a corresponding to the plurality of holes 4 of the tread portion 2 in which the spikes 51 are accommodated. The wire assembly 40 is composed of a plurality of wire wires 42a and a plurality of wedge bodies 44.

 Referring to FIG. 5, FIG. 5A illustrates a state where spikes are submerged when the tire of the present invention is used as a general tire, and FIG. 5B illustrates a state where the spikes protrude when the tire of the present invention is used as a spike tire. have. The spike assembly 50 is composed of a spike 51 and a cylindrical holding chip 54 having a magnet 55 attached to the bottom thereof. The spike 51 is accommodated in the cylindrical holding chip 54 and held in the hole 4 of the tread portion 2. Cylindrical retaining chip 54 is provided with recesses 6 angulated in the side walls of the holes 4 of the tread 2 to prevent the spikes 51 from escaping from the holes 4 of the tread 2. The projection 52 fitted is provided. The cylindrical holding chip 54 also has an opening 53 that allows the wedge body 44 to move in and out as the wire wire 42a moves forward and backward.

The second tension coil spring assembly 60 shown in FIGS. 1 and 2 consists of a second tension coil spring 61 and a second tension coil spring housing 62 for receiving it. The second tension coil spring assembly 60 is installed by securing the second tension coil spring housing 62 to the wheel in a position opposite the gear assembly 10 by means of fastening, such as, for example, a screw.

Between the cylindrical body 17 of the gear assembly 10 and the moving plate 21 of the compression coil spring assembly 20, between the moving plate 21 and the first tension coil spring 31, and the first tension coil spring. A single wire wire is connected between the 31 and the wire assembly 40 and between the wire assembly 40 and the second tension coil spring 61.

The connecting ring 71 is connected to the wire line between the first tension coil spring assembly 30 and the wire assembly 40 and the wire line between the wire assembly 40 and the second tension coil spring assembly 60. It is possible to easily replace the tire, and also provided with an insulator 72 adjacent to the position where the connecting ring 71 is installed, it is possible to prevent damage from lightning.

The operation of the tire of the present invention will be described below.

In order to switch to a spike tire in a normal tire state, the screw gear 14 of the gear assembly 10 is rotated (hereinafter, referred to as forward rotation) such that the wire wire is pulled about 15 mm as a whole. Then, the wire wire of the length drawn on the cylindrical body 17 attached to the pinion gear 15 is wound, and the moving plate 21 of the compression coil spring assembly 20 moves along the wire wire (hereinafter referred to as forward movement). do. At this time, the compression coil spring 21 is pressed by the moving plate 21 in the compression coil spring housing 23 and compressed. The first tension coil spring 31 connected to the moving plate 21 by a wire line is temporarily stretched by the length of the wire line wound around the cylindrical body 17. At this time, when the row of holes of the tread part 2 is in a ground state, the plurality of wire lines 42a of the wire assembly 40 are not pulled, and the hole rows of the tread part 2 are closed at the moment the driver drives the vehicle. When released from the ground state, a plurality of wire wires 42a are pulled. When a plurality of wire lines 42a are pulled, a plurality of wedge bodies 44 having inclined portions 43 are connected to the wire lines 42a, and all spikes 51 are formed on the tread portion 2 while advancing. By pushing out of the hole 4 and projecting the spike 51 from the state of FIG. 5A to the state of FIG. 5B, the switch from a normal tire to a spike tire is made. When the tire is converted to a spike tire, the second tension coil spring 61 of the second tension coil spring assembly 60 is stretched and kept in tension.

On the contrary, when it is desired to switch from the spike tire state to the normal tire, when the screw gear 14 is rotated again in the reverse direction (hereinafter referred to as reverse rotation), the wire wire wound on the cylindrical body 17 is released in tension and loosened. When the compression coil spring 22, which is first released by the moving plate 21, is elastically restored, the moving plate 21 is pushed in the opposite direction as the forward rotation of the screw gear 14 (hereinafter referred to as the reverse movement). ). Reverse movement of the moving plate 21 pulls the loose wire in the reverse direction. The second tension coil spring, which is stretched in the state of the spike tire and is in tension, pulls the plurality of wires 42a of the wire assembly 40 in the reverse direction when the hole array of the tread portion 2 is not in the ground state. Returning to the contracted state, the plurality of wedge bodies 44 connected to the plurality of wire lines 42a are retracted, and all the spikes 51 are infiltrated in the state of FIG. 5A, and are switched back to the general tire. This is done.

As one embodiment, the head portion of the screw gear 14 can be rotated forward and backward to draw and loosen the wire.

As another embodiment, the electric motor may be connected to the screw gear 14 so that the screw gear 14 is rotated forward and backward to draw and loosen the wire. In addition, by installing an optical sensor in the electric motor and having a remote control device may be configured to pull and loosen the wire by rotating the screw gear 14 forward and reverse by remote operation.

According to the invention of claim 1 of the present application, it is possible to easily switch from general tires to spike tires or spike tires to general tires as needed, with a single operation of forward and reverse rotation of the screw gear 14, and the manufacturing cost is low. Spikes / universal tires can be provided to ensure stable and reliable operation even for long-term use.

According to the invention of claim 2, in addition to the effect of claim 1, the effect of reliably preventing the wire from being detached from the cylindrical body 17 can be obtained.

According to the invention of claim 3, in addition to the effects of claims 1 and 2, the wire wire can be pulled and released by a simple single operation of turning the screw gear 14 by hand.

According to the invention of claim 4, in addition to the effects of claims 1 and 2, since the screw gear can be turned by using an electric motor, it is possible to easily change the general tire / spike tire by simply operating a key or a switch in the interior of the vehicle. .

According to the invention of claim 5, in addition to the effect of claim 4, it is possible to easily switch the general tire / spike tire by remote operation without wiring of a separate electric wire.

According to the invention of claim 6, in addition to the effects of claims 1 or 2, it is possible to easily replace the tire body 1 when a replacement is required.

According to the invention of claims 7 and 8, in addition to the effects of claims 1 or 2 or 3, it is possible to prevent damage to the tire device from lightning.

Claims (8)

As a tire that can be switched to regular tires and spike tires as needed in a single operation, A plurality of holes 4 which can be plunged into a plurality of spikes 51 are formed in the tread portion 2 in the form of a plurality of hole rows at regular intervals along the circumferential direction of the tire, and inside the tread portion 2 A tire body 1 which forms a plurality of wire passages 5 over almost the entire circumference of the tire along the direction of travel of the tire; With a screw gear 14 for pulling and releasing the wire wire by forward and reverse rotation, a pinion gear 15 engaged with the screw gear 14, and a gear box 16 for accommodating the screw gear 14 and the pinion gear 15; A gear assembly 10 formed and fixed to the wheel 3 of the tire; A moving plate 21 having wires connected to both sides, a compression coil spring 22 fixed to one side of the moving plate, and a compression coil spring housing 23 accommodating the moving plate 21 and the compression coil spring 22. A compression coil spring assembly (20) mounted to the rear of the gear assembly (10); A first tension coil spring assembly (30) comprising a first tension coil spring (31) and a first tension coil spring housing (32) for accommodating the first tension coil spring (31) and installed behind the compression coil spring assembly (20); Branched from a single wire wire 42 and connected to a plurality of wire wires 42a and a plurality of wire wires 42a which are embedded through a plurality of wire passages 5 via a wire redirecting roller 41; A wire assembly 40 made up of a plurality of wedge bodies 44 having inclined portions 43 positioned corresponding to the plurality of holes 4 of the tread portion 2 and serving to spike the spikes 51; The spike 51 and the spike 51 which are provided in the hole 4 of the tread part 2 and the magnet 55 is attached to the bottom part are held in the hole 4 of the tread part 2 and are separated from each other. Opening 53 having projections 52 fitted with recesses 6 fitted in the side walls of the holes 4 of the tread portion 2 to prevent them and allowing the wedge body 44 to enter and exit. Spike assembly 50 consisting of a cylindrical holding chip 54 having a; A second tension coil spring 61 and a second tension coil spring housing 62 for receiving it, the second tension coil spring housing 62 being positioned on the wheel 3 in a position opposite the gear assembly 10; And a second tension coil spring assembly 60 installed by fixing. The spacing of the hole rows formed in the tread portion 2 is an interval at which a time point at which both hole rows are not grounded with the road surface may occur when the tread portion portion between the row of holes and the hole rows is grounded when the tire rolls. The magnetic metal plate 7 corresponding to the magnet 55 of the spike bottom part is provided in the bottom of the hole 4 of the tread part 2, The pinion gear 15 of the gear assembly 10 is attached to a cylindrical body 17 which can wind a wire wire, and the moving plate of the cylindrical body 17 and the compression coil spring assembly 20 ( 21, between the moving plate 21 and the first tension coil spring 31, between the first tension coil spring 31 and the wire assembly 40, and between the wire assembly 40 and the wire assembly 40. A single wire is connected between the second tension coil springs (61), the tire can be switched to a general tire and spike tire as needed in a single operation. The end of the cylindrical body (17) attached to the pinion gear (15) is provided with a wire wire escape prevention jaw (18) for preventing the wire wire from being detached. Tires that can be converted to regular tires and spike tires accordingly. 3. The general tire and spike according to claim 1 or 2, characterized by pulling and releasing the wire wire by turning the head of the screw gear 14 by hand and rotating the screw gear 14 forward and backward. Tire convertible tires. 3. A general tire and spike according to claim 1 or 2, characterized in that the electric wire is connected to the screw gear 14 to pull and loosen the wire by rotating the screw gear 14 forward and reverse. Tire convertible tires. The general tire according to claim 4, wherein an optical sensor is installed in the electric motor, and a remote control device is provided to pull and release the wire wire by rotating the screw gear 14 forward and backward by remote operation. And tires convertible to spike tires. The wire tension between the first tension coil spring assembly 30 and the wire assembly 40 and the wire assembly 40 and the second tension coil spring assembly 60. A tire that can be switched to a normal tire and a spike tire as needed in a single operation, characterized in that a connecting ring 71 is provided on the wire line therebetween. The wire tension between the first tension coil spring assembly 30 and the wire assembly 40 and the wire assembly 40 and the second tension coil spring assembly 60. The tire which can be switched to a normal tire and a spike tire as needed by a single operation characterized by including the insulator 72 in the wire line between them. 7. The wireline of claim 6 wherein the wireline between the first tension coil spring assembly 30 and the wire assembly 40 and the wireline between the wire assembly 40 and the second tension coil spring assembly 60. The insulator 72 is provided in the tire which can be switched to a normal tire and a spike tire as needed by a single operation.

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