JPH067929Y2 - Anti-skid equipment for tires - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a slip preventer for a tire made of plastic or rubber for safely traveling on a snow / icy road surface. The present invention relates to the shape of the anti-slip metal fitting attached to the grounding point.

(Prior Art) The above-mentioned anti-skid device for a tire has a strip-shaped anti-slip member having a lattice or net shape, and a fastener for fixing the anti-slip member in a state in which the tread surface of the tire is wound. As shown in FIG. 4, a band-shaped grounding portion 51 of the anti-slip member is provided with a tack-shaped anti-slip fitting 52 made of a high hardness material. Then, an anti-slip tip 53 made of a super-hard material is embedded in a portion corresponding to the head of the tack so that the tip portion thereof projects from the head top surface 52a of the anti-slip metal fitting.

(Problems to be solved by the invention) However, in the above structure, when the vehicle travels on a frozen and hard road surface, as shown in FIG. When it comes into contact with a hard frozen road surface B, its surface area is so large that it hardly penetrates into the frozen road surface B. Therefore, the anti-slip chips 53 do not fully penetrate below the road surface, so that the anti-slip function is sufficiently achieved. I couldn't make it work.

Therefore, an object of the present invention is to have a stud-shaped anti-slip metal fitting made of plastic or rubber in the form of a lattice or a net, and at the ground contact point of a strip-shaped anti-slip member wound around the tread surface of a tire. An object of the present invention is to provide a slip preventive tool for a tire, in which a slip preventive tip made of an ultra-hard material is projected on the head of the slip preventive metal fitting, and the slip preventive function is sufficiently exhibited even on a hard and frozen road surface.

[Means for Solving the Problem] (Means for Solving the Problems) In order to achieve the above object, a tire slip preventive device according to the present invention comprises a belt-like slip preventive member 1 made of plastic or rubber and having a lattice or net shape. And a fastener 14 for fixing the anti-slip member in a state of being wound around the tread surface of the tire, and a stud-like anti-slip metal fitting 8 is provided at the ground contact portion of the anti-slip member.
In which the anti-slip tip 9 made of a super-hard material is projected on the head of the anti-slip fitting, the anti-slip tip 9 is formed in a cylindrical shape, and the top of the anti-slip fitting 8 is topped. The peripheral portion 8b of the surface 8a was chamfered.

(Operation) When a vehicle equipped with the anti-skid device for tires of the present invention travels on a frozen and hard road surface, the anti-skid metal fitting 8 presses its head top surface 8a against the road surface as the tire rotates. Since the peripheral portion 8b is chamfered and has a pointed shape, the head of the anti-slip metal fitting 8 is pressed deeply into a solid frozen road surface under the concentrated load of the vehicle, and therefore the anti-slip tip 9
It digs deep under the road surface and exerts its anti-skid function sufficiently.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

First, referring to FIGS. 2 and 3 showing the overall construction of the anti-skid device for tires, the anti-slip member 1 forming the main body of the anti-skid device has a band-like shape having a form in which a lattice and a net are combined. It is made of polyurethane rubber, which has excellent mechanical strength and flexibility. In this case, for convenience of manufacture and storage, it is divided into four parts in the longitudinal direction, and is integrally connected by the connecting fitting 2.

At both ends in the longitudinal direction of the anti-slip member 1, one set of latches 3 is provided, respectively.
And engaging holes 4 are provided, and both edges in the longitudinal direction have a zigzag shape as shown in FIG. A connecting member 5 that connects the protruding portions to each other is provided in a longitudinal shape at one edge portion inside the tire A when mounted on the tire A, and provided at each protruding portion at the other edge portion. A hook-shaped hook 6 is hooked on the hook hole 1a.

7 are anti-slip bands which are arranged in a grid pattern in the longitudinal direction of the anti-slip member 1 and serve as grounding points. Each anti-slip band 7 is provided with anti-slip metal fittings 8 at two points.

As shown in FIG. 1, the anti-slip metal fitting 8 has a stud-like shape as a whole, and a small cylindrical anti-slip tip 9 made of a super hard material such as cemented carbide is provided on the head top surface 8a thereof. The tip portion is embedded so as to project from the head top surface 8a.
Further, the peripheral portion 8b of the head top surface 8a is formed into a conical inclined surface as chamfered. The angle of inclination of the conical slope and the width of the slope are as large and wide as possible so long as they do not hinder the embedded support of the anti-slip tip 9, so that the pointed shape of the head of the anti-slip metal fitting 8 is sharpened. It is desirable to let

At the end surface of the leg portion 10 of the slip stopper 8, the hollow portion 1 having a predetermined depth is formed.
1 is provided.

To attach the anti-slip metal fitting 8 to the anti-slip member 1, the leg portions 10 are fitted into the through holes 12 provided at a plurality of positions of the anti-slip band 7 as shown in FIG. The washer 13 is externally fitted to the portion projecting from, and the projecting end portion is caulked to the washer 13.

In FIG. 3, 14 is a fastener for fixing the anti-slip member 1 to the tire in a state where the anti-slip member 1 is along the tread circumferential surface of the tire A,
The anti-slip member 1 is made by connecting a string-like elastic material such as a coil spring in an annular shape and hooking the fasteners 14 between the latches 6 annularly scattered on the side surface of the tire. It is fastened to the tread surface of the.

Next, the operation of the above configuration will be described. When a vehicle equipped with anti-skid tires runs on a frozen, hard road surface, tire A
The head top surface 8a of each anti-slip metal fitting 8 comes into contact with the icing surface in sequence with the rotation of the. The head top surface 8a has a pointed shape, unlike the conventional flat surface. Because I am doing
As shown in FIG. 1, it also bites into a hard icing surface. Therefore, the anti-slip tip 9 protruding from the top surface 8a of the head also bites deeply below the icing surface to prevent the tire A from slipping or skidding. Will give you.

Of course, the anti-slip tip 9 has a hollow cylindrical shape at its grounding portion, so while saving expensive super-hard material,
At the same time, the grip function for the frozen road surface is enhanced.

In the above configuration, the peripheral portion 8b of the head top surface 8a of the slip stopper 8 is
Is a conical slope, but this slope may be curved in the radial direction. The planar shape of the head of the anti-slip metal fitting 8 is not limited to a circular shape, but may be a rectangular shape or any other shape. Further, the sloped surface may be roughened by, for example, providing a corrugated concavo-convex shape in the circumferential direction so as to enhance the grip force of the anti-skid fitting 8 on the road surface.

[Effects of the Invention] As is clear from the above description, the anti-skid device for a tire according to the present invention is a strip-shaped anti-slip member 1 made of plastic or rubber and having a lattice or net shape, and the anti-slip member is a tread of a tire. A fastener 14 that is fixed in a state of being wound around the surface, and a stud-shaped slip-preventing metal fitting 8 is planted at a grounding point of the slip-preventing member 1, and a slip-proof chip 9 made of an ultra-hard material is attached to the head of the slip-proof fitting. In the projection, the anti-slip tip 9 is formed in a cylindrical shape and the peripheral member 8b of the head top surface 8a of the anti-slip fitting 8 is formed in a chamfered shape, so that the anti-slip tip can be used even on a hard frozen road surface. The 9 bites deeply into the hard road surface and exerts a sufficient anti-slip function.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is an enlarged vertical cross-sectional view of the main part, FIG. 2 is a plan view of the stretched anti-slip member, and FIG. 3 is a sketch showing the mounting state of the anti-slip member on a tire. FIG. 4 is a view corresponding to FIG. 1 showing a conventional example. Code table 1 …… Slip prevention member, 2 …… Coupling metal fitting 3 …… Latch, 4 …… Hooking hole 5 …… Coupling member, 6 …… Ladder 7 …… Slip prevention band, 8 …… Slip prevention metal fitting 8a …… Head Top surface of the part, 8b ... Surrounding part 9 ... Anti-slip tip, 14 ... Fastener

Claims (1)

[Scope of utility model registration request] 1. A slip prevention member 1 made of plastic or rubber and having a lattice or net shape, and a fastener 14 for fixing the slip prevention member in a state wound around a tread surface of a tire. A stud-shaped anti-slip metal fitting 8 is planted at the grounding point of, and an anti-slip tip 9 made of a super-hard material is projected on the head of the anti-slip metal fitting.
A slip preventive tool for a tire, wherein the slip preventive tip is formed in a cylindrical shape, and a peripheral portion 8b of a head top surface 8a of the slip preventive metal fitting 8 is chamfered.