JP2005041329A - Preventive device for tire puncture caused by running over nail etc - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a preventive device for tire puncture caused by a nail, glass, wood chip, etc., which plunges into the tire of the rear wheel(s) of such a vehicle as automobile, motorcycle, scooter, etc., with a countermeasure being taken against it as a matter of fact according to the conventional concept, capable of preventing a sharp piece of nail, glass, wood chip, etc., from abutting to any part of the tire of the vehicle rear wheel, applicable easily to an existing motorcycle etc. only by attachment, and assuring safe running. <P>SOLUTION: A nail avoiding member is installed at the bottom (in the middle between the front and rear wheels) of a vehicle frame of an automobile, motorcycle, scooter, etc. By the nail avoiding member, the nail, etc., raised by the front wheel tire falls down, or the hopping nail, etc., is removed so as not to reach the rear wheel tire. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides a vehicle tire, such as a car, a motorcycle, a scooter, etc., which is provided with a nail-avoiding member at the lower end of the vehicle frame to prevent puncture caused by a nail stepping on the tire of the rear wheel of the vehicle, and for safety. The present invention relates to a puncture prevention device.

  Conventionally, there have been accidents in which tires are punctured by nailing during driving of automobiles, motorcycles, and scooters, but these tire punctures are usually found in the tires of the rear wheels of vehicles.

When the tire is punctured by a nail or the like, not only air leakage but also puncture and burst (rupture) may result in a serious accident.

  In the past, as a preventive device, the tire itself was mainly improved, it was not punctured, it was difficult to puncture, it was repaired even when punctured, the puncture was stopped with a partition wall, puncture did not leak air, etc. Many devices have been proposed that monitor a small number of tires and tire punctures, and take immediate measures such as repairs.

  However, all of the above conventional ones are designed to prevent punctures and bursts after stepping on the nail, so that the nail itself does not protrude from the tire to prevent punctures caused by stepping on the nail. I don't see any equipment made.

  Small pieces with sharp edges such as nails, wooden pieces, and glass pieces that puncture a tire are usually present in a safe and harmless form (side down) parallel to the road surface. However, in reality, tires are often punctured by stabs from these nails, pieces of wood, pieces of glass and the like. These stab wounds are often found in thin and weak areas of the tire, such as a tread portion that hits the tire depression or the tire flank.

  As a result of various verifications on the manner in which the nail, the piece of wood, the piece of glass and the like puncture the tire, the inventor confirmed the following phenomenon. That is, while a vehicle such as an automobile, a motorcycle, or a scooter is traveling, a nail that is usually lying on the road surface is awakened by the tire of the front wheel and moves up instantly on the road surface. If the rear tire steps on the nail, the nail pierces and punctures somewhere on the tire.

  Or, while driving, the nail jumped up from the tire on the front wheel of the vehicle is bounced off, gets up, and pierced from the road surface to a part of the tire on the rear wheel (a tire depression or a tread that hits the side of the tire). This stab wound has resulted in a tire puncture or burst.

  This problem is solved by preventing the nail, which is raised or sprung up by the tire on the front wheel of the vehicle, from coming into contact with the tire on the rear wheel of the vehicle. That is, an object of the present invention is to block a nail flight path that is bounced up by the front tire and fly toward the rear tire so as not to reach the rear tire. The purpose is to bring the nails raised by the front wheel tires into a harmless state.

  The nail avoidance member in this invention is wider than the width of the tire, and at least a part of the material is made of a flexible material such as synthetic rubber or soft synthetic resin, and the attachment portion at the lower end of the vehicle frame is detachable. The positioning of the nail is easy, the nail avoidance moves following the road surface even during traveling, and it does not fall off the vehicle frame.

  There are numerous regular vehicle runs using postal, newspaper, Yakult, visiting bankers, and other motorcycles. Of these, this inventor verified by postal delivery and ran at a rate of once every two months on an average of 35 km / day, but a motorcycle equipped with the device of the present invention was 35 km / day. Even after 12 months of running, I did not puncture.

In the following description, an example in which a nail avoiding member is provided on a part of a leg shield of a motorcycle has been described. However, in the present invention, a nail avoiding member is provided at the lower end of a vehicle frame, at an intermediate position between a rear tire and a front tire. This is a device for preventing punctures caused by nailing caused by the tires of the front wheels, such as automobiles, scooters, etc. as well as motorcycles.

The details of the present invention will be described below with reference to examples, but the same members and the same applications will be denoted by the same reference numerals, and the description thereof will be omitted.

The first embodiment is shown in FIG. 1, and FIG. 1 is an explanatory view of a motorcycle 1, and shows a mode in which a mudguard-type nail avoiding member 9 is provided at the lower end 3 of the frame. That is, at the lower end 3 of the frame 2 of the motorcycle 1, a nail avoiding member 9, which is a device for preventing puncture due to nail treading, is attached with a bolt nut 10 to a lower portion 8 of a leg shield 7 near the front tire 5 from the stand 4. The nail avoiding member 9 does not hinder the operation of the stand 4. The nail-avoiding member 9 provided on the leg shield 7 is a synthetic rubber mudguard, has an apron shape, is flexible, has strength and durability, and is resistant to wear even if it contacts the road surface 11. Thus, when getting on, the member lower end 12 of the nail avoiding member 9 is set so as to maintain an interval of 0 to 3 cm with respect to the road surface 11.

A second embodiment is shown in FIG. In this embodiment, as in the first embodiment, the nail avoiding member 9 is of a synthetic rubber mudguard type, but at least a part of the member is formed in a substantially triangular shape like the bow of a ship, The wind pressure and the nails are divided into left and right parts and removed from 13 toward the side edges 14 on both sides.

  A third embodiment is shown in FIG. In this embodiment, as in the first and second embodiments, the nail avoiding member 9 is of a synthetic rubber mudguard type, a part of the nail avoiding member 9 is blind and a space 15 is provided in a part of the nail avoiding member 9 so that the wind pressure is reduced. It is configured to be suppressed. The space 15 may be a gap as shown in FIG. 3, but may be a mesh shape or a wing shape, and other members may be used for the same purpose.

FIG. 1 is an explanatory view of a first embodiment of the present invention as viewed from the side. FIG. 2 is an explanatory view showing a main part of a nail avoiding member according to Embodiment 2 of the present invention. FIG. 3 is an explanatory view showing a main part of a nail avoiding member according to Embodiment 3 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Motorcycle body 2 Frame 3 Frame lower end 4 Stand 5 Front wheel tire 6 Rear wheel tire 7 Leg shield 8 Leg shield lower part 9 Nail avoidance member 10 Bolt nut 11 Road surface 12 Member lower edge 13 Member tip 14 Member side edge 15 Space

Claims (4)

It is a device provided so that vehicle tires such as automobiles, motorcycles, scooters etc. will not be punctured by nailing, etc., and a nail avoidance member shall be provided at the lower end of the vehicle member such as a frame and at the intermediate position between the front and rear wheels Puncture prevention device by nail treading of vehicle tires as a feature.   In the puncture prevention device by nail treading or the like according to claim 1, at least a part of the nail avoiding member provided at the lower end of the frame, preferably near the front wheel, is constituted by a flexible and / or elastic member, A vehicle characterized in that it follows a vehicle body even if it is moved up and down with respect to the road surface while the motorcycle is running, does not break even if it contacts, and maintains a predetermined angle and a predetermined distance with respect to the road surface. Puncture prevention device by nailing on tires for automobiles.   Puncture caused by nail treading of a vehicle tire, wherein the nail avoiding member according to claim 1 has a bow shape of a ship, and wind pressure and nails during vehicle traveling are separately divided into left and right Prevention device. A clearance is provided in at least a part of the nail avoidance member, and the resistance to the wind pressure is small, such as a mesh shape, a louver shape, and a wing shape. An apparatus for preventing puncture caused by nailing of a vehicle tire.

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