JPH0730106U - Tire slipper - Google Patents

Abstract

(57) [Abstract] [Purpose] A tire non-slip device that prevents external exposure of the internal reinforcing core material at the intersection where the reinforcing core material vertically overlaps itself in a crossing-like manner and further improves the mounting stability on the tire. To provide. [Structure] A reinforcing core material 1 which is vertically cross-polymerized is provided inside, and at least a back surface side of a crossing portion 2 in which a spike pin 3 is embedded, which is in contact with a tread portion B of a tire, is made thicker than other portions. Form. Further, the tread portion B including the thickness intersecting portion 2-1 is interrupted at the same height in the circumferential direction at an appropriate interval in the width direction of the tire section over the entire rear surface in contact with the sidewall portions on both sides thereof. Innumerable convex stripes 4
... is provided. As a result, it is possible to improve the rigidity of the thickness intersection portion 2-1 and the mounting stability with respect to the tire.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a non-metal ladder-type or net-type anti-skid device made of rubber or resin that prevents tires from slipping when running on pressured roads, frozen roads, etc. The present invention relates to an improvement of a tire slip stopper having a reinforcing core member inside and having spike pins embedded in the intersection thereof.

[0002]

[Prior art and its problems]

 Conventionally, in the case of this type of tire anti-skid device, for example, a net type tire anti-skid device as illustrated in FIG. 1, the reinforcing core material braided inside the tire anti-skid device is integrally stretched to make it rigid. In addition, spike pins are embedded at the intersections of the nets to improve the gripping force on pressed road surfaces and frozen road surfaces.

However, in the net intersection, spike pins protruding toward the surface side (road contact ground side) and reinforcing core materials that vertically overlap each other in a partially buried state need to be present in a diagonally intersecting shape. Therefore, it is inevitable that the inner position of the reinforcing core material must be shifted to the back side of the tire that touches the tread portion of the tire, compared to other portions. That is, the reinforcing core material must be biased to the back side. As a result, at the intersection where the spike pin is embedded, the thickness of the back side that comes into contact with the tread portion is considerably thin, and the internal reinforcing core material is exposed to the outside, resulting in a short life and durability. Is inferior. In addition, the exposed reinforcing core material may be rubbed by the tire and cut off.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of such a conventional situation, and prevents the internal reinforcing core material from being exposed to the outside at the intersection where the reinforcing core materials are vertically overlapped with each other and is stable in mounting on the tire. It is an object of the present invention to provide a tire anti-slip device with improved performance.

[0005]

[Means for achieving the object]

 The technical means taken by the present invention to achieve the above object is to provide a tire slip stopper in which a reinforcing core material which is vertically cross-polymerized is provided inside the intersection, and a spike pin is embedded in the intersection. In the above, at least the back surface side of the intersecting portion, which comes into contact with the tread portion of the tire, is formed to be one step thicker than other portions.

[0006] Furthermore, from the tread portion including the thick crossing portion in which the back surface side in contact with the tread portion of the tire is formed to be one step thicker than other portions, the entire back surface in contact with the sidewall portions on both sides of the tread portion is covered with the tire. It is characterized in that an innumerable ridge extending intermittently at the same height in the circumferential direction is provided at appropriate intervals in the cross-sectional width direction.

[0007]

[Work]

 Thus, according to the technical means described in claim 1 of the present invention, the back surface side of the intersecting portion contacting the tread portion of the tire is formed to be one step thicker than the other portions. It is possible to increase the rigidity of the intersecting portion and prevent the internal reinforcing core material from being exposed to the outside.

[0008] Furthermore, the rear surface side that contacts the tread portion of the tire is formed one step thicker than the other portions. Stability at the time of mounting can be achieved by contacting the entire area of the tread of the innumerable ridges that extend intermittently at the same height.

Moreover, the innumerable ridges intermittently extending in the circumferential direction of the tire are brought into line contact with the tread portion of the tire to bring about an effect of improving safety during running. That is, during running, water invades the tread portion of the tire due to snow melting or freezing, and the invading water forms a curtain to intervene between the tread portion and the contact force with the tread portion ( Friction force) is reduced, but in comparison with the case where the contact state with the tread is surface contact, the innumerable ridges make line contact to prevent the contact force from decreasing due to invading water (preventing slipping). It is expected that the tire will be even more stable when mounted on the tire, and thus a high anti-skid effect can be expected.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The drawings show the case of a net-type tire slipper, and the main body A of the slipper is basically braided into a string shape and then a rubber or synthetic material is used. The reinforcing core material 1 coated with a resin material or the like, or the reinforcing core material 1 braided in a string shape after being coated with a rubber or a synthetic resin material and the like is in a zigzag shape along a net shape and at the intersection portion 2. The spike pin 3 (in the example shown in the figure, a hollow cylindrical tubular macaroni-shaped spike pin integrally provided with a locking flange at the lower end on the embedded side) is formed by vertically overlapping each other in an obliquely intersecting manner. ) Is embedded in the rear surface side of the tire which comes into contact with the tread portion B of the tire, and the tread portion including the thick intersection portion 2-1 is thicker than the other portion by one step. From B to the sidewalls on both sides On the entire rear surface, innumerable ridges 4 ... Which extend intermittently at the same height in the circumferential direction at appropriate intervals in the cross-sectional width direction of the tire are provided, and the rigidity of the intersection 2-1 and mounting to the tire are provided. It is configured for stability.

The thick intersecting portion 2-1 has the reinforcing core material 1 which is internally polymerized in a diagonally intersecting manner inside the thicker intersecting portion 2-1 in relation to the spike pin 3 existing on the front side thereof, as compared with the other portion, for example, the connecting portion 5. The inner position of the back side contacting the tread portion B of the tire is displaced, that is, the reinforcing core material 1 is offset to the back side to reduce the thickness of the back side, and the contact with the tread portion B of the tire causes a short period of time. In order to prevent wear that would cause damage to the tread portion B, it is formed in a buildup shape one step higher in the direction of the tread portion B as shown in the figure, and rigidity against contact with the tire tread portion B is imparted. Then, the tread portion B including the thickness intersecting portion 2-1 extends intermittently in the circumferential direction of the tire at the same height over the entire back surface of the anti-skid body A that comes into contact with the sidewall portions on both sides thereof. Innumerable ridges 4 are provided.

In the illustrated example, the thickness intersection 2-1 to which the spike pin 3 is attached is made to be slippery, and all the intersections 2-1 existing in the tire circumferential direction at the center of the width direction of the tool body A are made to have thickness. The spike pins 3 are fixedly arranged on the both sides in the width direction at every other intersecting portion 2-1, but this arrangement is an example, and the arrangement is not limited to such an arrangement. Not something.

Further, the build-up shape of the wall thickness intersecting portion 2-1 is not only on the back surface side in contact with the tread portion B of the tire but also on the front surface side from which the spike pin 3 protrudes as shown in FIG. It is also possible to form it higher. As a result, the thick intersection 2-1 is provided with rigidity not only on the back side that contacts the tire tread portion B but also on the front side that contacts the road surface, and prevents the spike pin 3 from coming off due to being caught on the road surface, etc. An effect can be obtained, and an effect of further enhancing the rigidity of the thick intersection 2-1 can be expected.

The ridges 4 ... Are appropriately spaced in the tire cross-section width direction over the entire back surface of the anti-skid body A that is the contact surface side with the tread portion B of the tire and the sidewall portions on both sides (in the figure, The tire tread portion B and the sidewall portions on both sides are separated by a constant distance (excluding the Sakai portion), and are indiscriminately scattered on the same height surface in the circumferential direction of the tire as a unit. Make it project.

Therefore, according to the tire slip stopper of the present embodiment, when mounted on the tire, all the convex strips having the same height, including the convex strips 4 with a low protruding height of the wall thickness intersecting portion 2-1, are provided. The tips of 4 are evenly contacted with the tire outer peripheral surface such as the tread portion B and the sidewall portion of the tire at the same height to improve the stability of mounting the main body A of the slip stopper to the tire (state of FIG. 2). . Further, the ridges 4 ... Have an even and well-balanced contact with the tread portion B to increase the grip force (contact area) with respect to the tread portion B, thereby exhibiting a function of preventing lateral slippage of the slip stopper body A. That is, it can be expected that the vehicle can be driven safely, and in particular, the effect of improving the vehicle safety by preventing lateral slippage (sideslip) of the tire at an intersection or a curve during traveling can be expected.

Although the net-type tire anti-skid device has been described in detail in the above-described embodiments, the inner and outer ends of the anti-slip member having a shape intersecting in an X shape are connected to the inner and outer connecting ropes to form a single unit. It goes without saying that the present invention is also applicable to a ladder-type tire anti-slip device in which the X-shaped anti-slip member is attached to the outer peripheral surface of the tire.

[0017]

[Effect of device]

 Since the tire slip stopper of the present invention is constructed as described above, it has the following operational effects. ． The reinforcing core material is internally embedded in a vertically intersecting crossed shape, and the back side that contacts the tread portion of the tire at the intersection where the spike pin is embedded on the front side is formed one step thicker than other parts. Therefore, the rigidity of the intersecting portion can be increased, and the internal reinforcing core material can be prevented from being exposed to the outside due to contact wear with the tire tread portion. ． The tread portion of the tire is provided with innumerable ridges that extend intermittently at the same height in the circumferential direction at appropriate intervals in the cross-sectional width direction of the tire provided on the entire back surface including the thickness intersection where the spike pins are attached. Since it is designed to be in contact with the entire area to ensure stability during mounting, the entire back surface as well as the thick crossing section is convex and the entire outer peripheral surface such as the tread portion and side wall portion of the tire is evenly and well balanced. It can be put in contact.

Therefore, according to the tire anti-skid device of the present invention, it is possible to prevent the internal reinforcing core material from being exposed to the outside at the intersection where the reinforcing core material is vertically overlapped in an overlapping manner, and to prevent the thick intersection portion from being exposed. In addition, it is possible to improve the mounting stability on the tire by the innumerable ridges that are intermittently extended at the same height in the circumferential direction at appropriate intervals in the cross-sectional width direction of the tire provided over the entire back surface. Moreover, the effect of preventing lateral displacement of the tire in the cross-section width direction can be expected by the innumerable ridges extending in the circumferential direction intermittently at appropriate intervals in the cross-section width direction of the tire.

[Brief description of drawings]

FIG. 1 is a front view showing an example of an embodiment of a tire anti-skid device of the present invention.

FIG. 2 is an enlarged sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged sectional view taken along the line III-III in FIG.

[Explanation of symbols]

A ... Anti-slip body 1 ... Reinforcement core material 2 ... Intersection 2-1 ... Wall thickness intersection 3 ... Spike pin 4 ... Convex strip B ... Tire tread

Claims (2)

[Scope of utility model registration request] 1. A tire slip stopper having a vertically cross-reinforcing reinforcing core material inside a crossing portion, and a spike pin embedded in the crossing portion, wherein at least the tire at the crossing portion is provided. A tire anti-skid device, characterized in that the back surface side that comes into contact with the tread portion is formed to be one step thicker than the other portions. 2. The tire anti-skid device according to claim 1, wherein both sides of the tread portion including a thick crossing portion in which a rear surface side of the tire in contact with the tread portion is thicker than other portions. A tire slip stopper characterized by providing innumerable ridges intermittently extending at the same height in the circumferential direction at appropriate intervals in the tire cross-section width direction over the entire back surface in contact with the sidewall portion of the tire. Ingredient