JPH088889Y2 - Spike pin with retaining collar for tire slip prevention member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a spike pin used for a mold-type tire anti-slip member, in which a spike pin is integrally embedded during molding of a tire anti-slip member. .

(Prior Art) Conventionally, as a spike pin used for a mold type tire slip preventing member, there is, for example, one disclosed in Japanese Utility Model Laid-Open No. 60-160214 or Japanese Patent Laid-Open No. 62-128811.

(Problems to be solved by the invention) However, in the case of the former in the above-mentioned prior art, when the vehicle is traveling, the long side portion on the rear side in the traveling direction of the belt-shaped body 10, that is, the tire 11 is hit as shown by an arrow in FIG. Edge part 13 on the contacting surface 12 side
The weight of the vehicle and the pressing force of the driving force of the tire 11 act on
This is due to the resistance of the outer peripheral edge portion 16 of the retaining collar portion 15 of the spike pin 14, the edge portion of the belt-like body 10 on the tire contact surface 12 side.
There was a problem that a crack was generated near 13 and the band 10 was damaged early.

Also, in the latter case, since it is a protrusion for retaining that is radially provided from the outer peripheral end of the flange portion toward the road surface side, the tip of the protrusion in particular has a hook shape toward the spike pin formation surface side. Since it is sharply formed, the band-shaped body is more likely to be cracked, and there is a problem that the band-shaped body is damaged earlier than the former or more.

The present invention solves the above-mentioned problems and can prevent the spike pin from coming out from the inside of the non-slip member, and can prevent the spike pin from coming out of the anti-slip member near the rear edge of the tire contact surface of the anti-slip member. An object of the present invention is to provide a spike pin with a retaining collar portion for a tire anti-slip member, which is capable of preventing the occurrence of cracks and capable of withstanding harsh traveling.

(Means for Solving the Problems) In order to solve the above problems, the present invention is a ladder formed by an elastic body such as rubber or synthetic resin with an inner shape that can be fitted to the outer peripheral surface and both side surfaces of a tire and a required width. In a spike pin with a retaining collar portion for a tire anti-slip member, which is integrally molded in the inside of an anti-slip member, the retaining collar portion of the spike pin is formed into a circular dish-shaped cross section having a required thickness, and The spike pin non-forming surface side of the circular dish-shaped section having a circular cross section is an arcuate surface for preventing biting in which the central portion is a flat surface and the outer peripheral edge continuing from the flat surface is a smooth gentle curved surface, and the spike pin forming surface. It is characterized in that the side is formed as a concave surface portion having a required circular arc surface and continuing to the smooth gentle curved surface.

(Operation) As shown in the fifth illustration, the spike pin molded in the anti-slip member as a whole has the tip end side of the biting portion on the road surface (ice, snow surface) as shown in the sixth to eighth illustrations when the vehicle is running. ) To prevent tire slippage. Further, at this time, even if the anti-slip member is deformed due to friction and impact force with the road surface to cause the spike pin to slip out of the anti-slip member, the spike pin's retaining collar prevents the spike pin from slipping out. Therefore, stable running can be performed. In particular, as shown by the arrow in FIG. 8, even if the weight of the vehicle and the pressing force by the tire driving force act on the edge portion of the tire contact surface on the rear side in the traveling direction of the anti-skid member immediately before the anti-skid member separates from the road surface. Since the outer peripheral surface of the retaining collar of the spike pin is formed into a circular arc surface having a smooth smooth curved surface that is uniform over the entire surface of the spike pin non-forming surface to the side of the spike pin forming surface, the resistance of the retaining collar causes No cracks are formed near the edge portion of the tire contact surface on the rear side in the traveling direction of the anti-slip member.

(Embodiment) FIGS. 1 to 8 show an embodiment of the present invention. FIG. 1 is a front view of the product of the present invention, FIG. 2 is a plan view of the same, and FIG. FIG. 4 is an enlarged cross-sectional view of the same portion, FIG. 4 is a perspective view showing an example in which a non-slip member is attached to a tire, and FIGS. It is a partially expanded side sectional view which shows an example.

Reference numeral 1 denotes a spike pin, which is made of steel, cemented carbide, or other suitable hard metal material, and has a circular inverted dish-shaped retaining collar 3 having a required thickness having a mounting positioning hole 2 on the base end side thereof.
Are formed. Reference numeral 3a denotes a flat surface formed in the central portion of the retaining collar 3 on the side where the spike pin is not formed, and reference numeral 3a 'denotes an outer peripheral edge continuous to the flat surface 3a, which is a smooth and gentle curved surface for preventing biting. It is formed on an arcuate surface. 3a _'1 is a concave portion formed in the studs forming surface of the retaining collar portion 3, the outer peripheral edge 3a of the spike pin surface without side' are continuous with a desired arcuate surface 3a _'2 and . Reference numeral 4 denotes a biting portion press-fitted into the hole 5 on the tip end side of the spike pin 1 , which is made of a well-known cemented carbide such as a tungsten-cobalt alloy. In addition, the feeding part 4
May be formed integrally with the spike pin 1 , or may be formed into a concave shape, a hole shape, or a flat shape. Reference numeral 6 is a non-slip member that integrally molds the spike pin 1 and has two parallel sides which are arranged on the side surface of the tire A by an elastic body such as rubber or synthetic resin as shown in FIG. It is used by being attached in a ladder shape at predetermined intervals between the strips B. Reference numeral 7 is a wire arranged in parallel inside the anti-slip member 6 at a required interval, or a plurality of core members formed of other suitably strong members, 8 is a chamfered portion, and C is a tightening tool for the side strip B. , D is the road surface.

(Effects of the Invention) As described above, according to the present invention, a ladder-like non-slip member formed of an elastic body such as rubber or synthetic resin with an inner shape that can be fitted to the outer peripheral surface and both side surfaces of the tire and a required width In a spike pin with a retaining collar portion for a tire anti-slip member integrally molded inside, the retaining collar portion of the spike pin is formed into a circular dish-shaped cross section having a required thickness and the circular dish-shaped circular cross section. The spike pin non-forming surface side of the portion is an indentation-preventing arc surface having a flat central portion and an outer peripheral edge continuing from the flat surface having a smooth gentle curved surface, and the spike pin forming surface side is a required arc. Since the surface is formed as a concave surface that is continuous with the smooth curved surface, the spike pin integrally molded in the anti-slip member is completely removed from the anti-slip member by the retaining collar. In addition to being able to completely prevent it, a pressing force is applied by the weight of the vehicle and the driving force of the tire to the long side portion on the rear side in the traveling direction of the anti-skid member, that is, the edge portion on the side contacting the tire as the vehicle travels. Even if the retaining pin of the spike pin has a flat surface on the side where the spike pin is not formed, and an outer peripheral edge that is continuous with the flat surface is formed as an indentation-preventing arc-shaped surface that is a smooth gentle curved surface. In particular, since the end portion of the outer peripheral edge where the pressing force strongly acts is formed with a required circular arc surface, the feeding force of the outer peripheral surface of the retaining collar with respect to the anti-slip member is dispersed, and as a result, the retaining collar. Due to the resistance of the portion, the possibility that cracks will occur near the edge portion of the tire contact surface on the rear side in the traveling direction of the anti-slip member is significantly reduced, and not only can stable running be performed for a long period of time.
Since the spike pin forming surface side of the retaining collar is a concave portion, the slip preventing member is flowed and filled into the concave portion at the time of molding, and as a result, the gripping force of the slip preventing member against the spike pin is further strengthened. In addition, since there are no protrusions on the entire outer peripheral surface of the retaining collar, the spike pin can be easily manufactured, and the cost can be reduced.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention. FIG. 1 is a front view of a spike pin of the present invention, FIG. 2 is a plan view of the spike pin, and FIG. FIG. 4 is a perspective view showing an example of a state in which the tire is integrally molded, FIG. 4 is an enlarged cross-sectional view of the same portion, FIG. 5 is a perspective view showing an example in which an antiskid member is attached to a tire, and FIGS. Fig. 9 is a partially enlarged side sectional view showing each example in Fig. 9, and Fig. 9 is a partially enlarged side sectional view showing an example of a conventional product in use. 1 ... Spike pin, 2 ... Mounting positioning hole, 3 ... Circular inverted dish-shaped retaining collar, 3a ... Flat surface, 3a '... Outer peripheral edge,
3a ' ₁ ...... Concave part, 3a' ₂ ...... Arc surface, 4 …… Eating part, 5
…… Hole, 6 …… Skidproof member, 7 …… Core member, 8 …… Chamfered part, A …… Tire, B …… Side strip, C …… Tightener, D ……
… Road surface.

Claims (1)

[Scope of utility model registration request] 1. A tire slip formed integrally with a ladder-like non-slip member formed with an inner shape and a required width that can be fitted to the outer peripheral surface and both side surfaces of the tire by an elastic body such as rubber or synthetic resin. In a spike pin with a retaining collar portion for a retaining member, the retaining collar portion of the spike pin is formed in a circular dish-shaped cross section having a required thickness, and the spike pin non-forming surface side of the circular dish dish section is centered. A concave portion that is a flat surface and has an outer peripheral edge that is continuous with the flat surface and that has a smooth gentle curved surface and that has a smooth curved surface, and that has a spike pin forming surface side that has the required circular arc surface and that is continuous with the smooth gentle curved surface. A spike pin with a retaining collar for a tire anti-slip member, which is characterized in that