JPH0649106U - Anti-slip device for tires - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the spike pin from slipping out and improve the life of the anti-slip member. [Structure] Saddle-shaped non-slip member having a required width and adapted to the outer peripheral surface and both side surfaces of the tire T
12, the retaining flange 15 consisting of long side D1 and short side D2
By embedding the spike pin 15 having A, the anti-slip member 12
In a slip stopper 11 for a tire in which a plurality of the above are mounted at appropriate intervals on the outer circumference of the tire T, the retaining flange portion 15A of the spike pin 15 has its long side portion D1 along the longitudinal direction of the slip member 12 and has a short length. The side portion D2 is embedded along the width direction of the anti-slip member 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slip stopper for a tire, which is used by being wound around an outer peripheral portion of a tire when a vehicle travels on a snowy road surface or a frozen road surface.

[0002]

[Prior art]

 As this kind of anti-slip device, ones illustrated in FIGS. 4 to 6 are known as those which are optimally mounted on tires for heavy loads such as trucks, buses or light trucks (for example, JP-A-1-106710). (See the official gazette). This slip stopper 1 is a saddle-shaped member that can be fitted to the outer peripheral surface and both side surfaces of the tire T and has a flexible width and is made of an elastic material such as rubber or synthetic resin having a required width W. A plurality of tires are mounted on the outer periphery of the tire T in parallel at appropriate intervals, and the outer ends of the connecting hooks 4 are engaged with the hook engaging holes 3 formed in the left and right end portions 2A and 2B of the non-slip member 2, respectively. Then, the inner diameter end of the connecting hook 4 is engaged with the annular cord 5 and the cord 5 is tightened so that it can be wound around the outer peripheral portion of the tire T.

Then, in each anti-slip member 2, a plurality of spike pins 6 having a retaining flange portion 6B having a long side portion and a short side portion like an oval shape (or an oval shape) are embedded at appropriate intervals. The shank 6A is provided so as to project to the ground contact side, and the flange portion 6B of the spike pin 6 has a major axis D1 (long side portion) shown in FIG. 2 is arranged so as to be parallel to the width W direction.

[0004]

[Problems to be solved by the device]

 By the way, since the flange portion 6B of the spike pin 6 has an elliptical shape, it has an effect that the buried area can be increased as compared with the spike pin 7 in which the flange portion 7B shown in FIG. However, during traveling, as shown in FIG. 8, the tip of the shank 6A contacts the road surface G, so that the edge portion 6E of the flange portion 6B repeatedly receives the force F that tends to knead as a reaction. However, since the displacement of the edge portion 6E is large in the long side portion, there is a problem that cracks are likely to occur and as a result, the spike pin 6 is easily pulled out.

The present invention has been made in view of the above situation, and an object thereof is to prevent slipping of spike pins and to improve the life of a non-slip member. It is in providing the ingredients.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a saddle-shaped flexible anti-slip member that can be fitted to the outer peripheral surface and both side surfaces of a tire and has a required width, and a slip-out prevention flange portion including a long side portion and a short side portion. In a non-slip device for a tire, in which a plurality of the anti-slip members are mounted on the tire outer periphery at appropriate intervals, the slip-out prevention flange portion of the spike pin has a long side portion of the anti-slip member. It is characterized in that it is arranged along the longitudinal direction and the short side is embedded along the width direction of the anti-slip member.

[0007]

[Action]

 According to the present invention, since the long side of the flange portion of the spike pin is along the longitudinal direction of the anti-slip member and the short side thereof is along the width direction, when the tip of the shank portion of the spike pin touches the road surface. Even if a reaction that occurs, that is, a force that tends to twist is generated, the flange length in the tire rotation direction is short and the displacement amount of the flange edge is small.Therefore, the occurrence of cracks by the edge is suppressed and the spike pin does not come out. It won't happen.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention, in which a tire anti-slip member 11 comprises a plurality of flexible anti-slip members 12 formed of an elastic material such as rubber or synthetic resin. Embedded in the anti-slip member 12, a tensioning rope 13 made of rope, a connecting hook 14 for connecting the longitudinal end portions 12 A and 12 B of each anti-slip member 12 to the rope 13 at predetermined intervals, respectively. It is composed of spike pins 15.

The anti-slip member 12 is a saddle shape having an inner side surface 12 A that can be fitted to the outer peripheral surface and both side surfaces of the tire and has a required width W. The connecting hook engaging holes 16 are provided at two places respectively so that the connecting hooks 14 can be engaged. A core material (for example, plain-woven fiber cloth, cord, etc.) 17 (see FIG. 3) extending in the longitudinal direction is embedded in the anti-slip member 12.

The connecting hook 14 has both ends of a metal rod bent substantially in the same direction in a U shape, the upper end 14a is fitted into the hook engaging hole 16 of the anti-slip member 12, and the lower end 14b is connected. When the anti-slip member 12 is damaged or worn and needs to be replaced, the upper end 14a is removed from the anti-slip member 12 and attached to the new anti-slip member 12 when the anti-slip member 12 needs to be replaced. Therefore, it can be easily replaced.

The spike pin 15 is made of a metal having excellent wear resistance such as cemented carbide, and has long sides and short sides such as an oval (oval) shape, an ellipse, and a rectangle as shown in FIG. It is equipped with a retaining flange portion 15A composed of sides and a cylindrical (or columnar) shank 15B. An adhesive is applied to the outer periphery (so-called chemlock treatment), and the flange portion 15A is placed inside the anti-slip member 12. The long diameter D1 of the non-slip member 12 is embedded along the longitudinal direction of the member 12 and the short diameter D2, that is, the short side thereof is embedded along the width W direction of the member 12, and the vulcanization of the non-slip member 12 is performed. In the process, both are vulcanized and bonded.

Both ends of the cord 13 are connected by tightening tools (indicated by reference numeral 8 in FIG. 4) to form an endless shape, and the tightening force can be adjusted. According to the above-described embodiment, as shown in FIG. 3, the spike pin 15 has the short diameter D2 of the flange portion 15A embedded in the width W direction, that is, in the rotation direction R of the tire T. The amount of displacement of the edge portion of the flange portion 15A in the minor axis direction due to bouncing the road surface G is significantly smaller than that on the conventional major axis D1 side, and the generation and growth of cracks and chips caused by edge displacement are suppressed. It is possible to prevent the spike pin 15 from coming out of the anti-slip member 12.

The present invention is not limited to the above embodiment, for example, the core material 17 can be located on both sides of the shank portion 15B of the spike pin 15, and the connecting hook 14 can also have other shapes. The thing which can be used can be designed and changed suitably. Further, the anti-slip member 12 may be a ladder portion of an anti-slip mat formed by a so-called ladder type net.

[0014]

[Effect of device]

 As described above, the present invention provides a flexible anti-slip member that has a saddle shape and a required width that can be fitted to the outer peripheral surface and both side surfaces of the tire, and that has a long side portion and a short side portion. A slip stopper for a tire, in which a spike pin having a flange portion is embedded, and a plurality of the slip stopper members are mounted on the outer circumference of the tire at appropriate intervals. Since the short sides are embedded along the longitudinal direction of the member and along the width direction of the anti-slip member, the spike pin is prevented from slipping out, the life of the anti-slip member is improved, and the anti-slip function is secured. Can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of a non-slip member of the same embodiment.

FIG. 3 is a sectional view for explaining the operation of the same embodiment.

FIG. 4 is a side view of an anti-slip device mounted on a tire.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a plan view of a conventional non-slip member.

FIG. 7 is a perspective view of a spike pin.

FIG. 8 is a sectional view for explaining the operation of a conventional example.

FIG. 9 is a perspective view showing a comparative example of spike pins.

[Explanation of symbols]

 11 Anti-slip tool 12 Anti-slip member 15 Spike pin 15A Detachment flange part D1 Long diameter (long side) D2 Short diameter (short side) T Tire W Width

Claims (1)

[Scope of utility model registration request] 1. A saddle-shaped flexible anti-slip member that can be fitted to the outer peripheral surface and both side surfaces of a tire and has a required width, and a slip-prevention flange portion having a long side portion and a short side portion. In a slip stopper for a tire in which a spike pin is embedded and a plurality of the slip stoppers are mounted on a tire outer periphery at appropriate intervals, the retaining flange portion of the spike pin has a long side portion in the longitudinal direction of the slip stopper member. A tire anti-skid device, which is provided along a width direction of a non-slip member and is embedded along the width direction of the anti-slip member.