JPH03182816A - Running wheel - Google Patents

Abstract

PURPOSE:To provide improved running performance on an icy and snowy road and a dry road by forming engaging grooves in a prescribed shape on tread surfaces of a tire which forms a running wheel, and making a chain in a prescribed shape to engage with the engaging grooves so that it may be engaged and disengaged for easy installation and removal of the chain. CONSTITUTION:In a tire 1 which forms a running wheel 10, there are provided a code layer on the inside 11 and a rubber layer 13 on tread surfaces 12 side respectively. With this constitution, engaging grooves 15 which meet the shape of a chain 20 are formed in a circumferential direction of the tread surfaces 12. Besides, on the tread surfaces 12, plural grooves 16 which cross the engaging grooves 15 and lead to a side wall 14 side of the tire 1 are formed. On the other hand, the chain 20 is formed by connecting, for example, plural stopping pieces 21 and connecting pieces 22 in one staggered line, whereas the above engaging grooves 15 are formed in a staggered shape which meets the shape of the above chain 20. The chain 20 is engaged with the engaging grooves 15, and then screw pins 26 are inserted/removed in/from the above grooves 16 to stick the chain 20 for engagement and disengagement.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to running wheels used in automobiles and the like.

(Prior Art) Conventionally, it is difficult for a vehicle to run on a snowy road unless spiked tires are used for the running wheels or chains are attached to the tires, making it difficult to drive safely.

Spiked tires have a large number of rivets set in rows on the tread surface of the tire, which are designed to sink into the snow and prevent slips.

When these spiked tires are used in areas with heavy snowfall during the winter, it is customary to keep the spiked tires on during the winter.

In addition, the chains that are attached to tires are generally made of a combination of chains or made of resin, etc.
Such a chain is attached to the tread surface of a tire by being wrapped around it so as to cover the tread surface. A method of locking a chain attached to a tire is to attach annular locking members to the arcuate part of the chain wrapped around the side of the tire (generally the sidewall) at approximately equal intervals.
Generally speaking, tires are held in place by applying tension using rubber or springs.6 (Problems to be Solved by the Invention) However, in the case of the above-mentioned conventional running wheels, spiked tires do not provide sufficient grip on the road surface on snowy roads. Although it is good,
When the snow is gone, the spiked tire pins will catch on the road surface. This caused problems such as the scraping of the road surface, which caused dust pollution.9 Also, when chains are attached to regular tires, the chains are wrapped around the ties. Since it is not directly engaged with the tire, it is not firmly fixed. Therefore, there may be problems such as accidents such as chain breakage due to rattling when driving. Ta.

The present invention was made to solve these conventional problems, and its purpose is to provide stability when driving on snowy roads by attaching a chain to the engagement groove of the tire. You can drive safely, and when driving on snowy roads,
The purpose of removing the chain is to provide a running wheel that can be used as a regular tire.

(Means for solving the problem:) In order to achieve the above object, the running wheel according to the present invention has the following features:
Tire tray: Multiple rows of engagement grooves that match the shape of the chain are formed in the circumferential direction of the 78 surfaces, and the chain is removably engaged with these engagement grooves to attach a part of the chain to the tire. Notoshi! I) The structure is such that it is exposed from the front surface.

・[[Operation] Therefore, the running wheel according to the present invention has a tire having an engagement groove, and depending on the usage condition (road surface condition), when driving on a snowy road, a chain can be engaged with the engagement groove. This means that you can drive on snowy roads, and when you are not driving on snowy roads, you can remove the chain and use it as a regular tire.

- ((Example:) Hereinafter, one example of the present invention will be described based on FIGS. 1 to 6.

Fig. 3 is a perspective view showing a part of the first embodiment of the running wheel according to the present invention, Fig. 2 is a plan view showing the main parts of the chain shown in Fig. FIG. 3 is a side view showing main parts.

No. 117 In FIG. 3, 10 is a running wheel, and this running wheel 10 is equipped with a tire 1.

As is well known, the tire 1 is made of rubber, and the inner side 11 of the tire 1 is provided with a cord layer (not shown) called a breaker or belt.

The tread surface 12 side, which is the contact surface of the tire 1, forms a hard and thick rubber layer 13.8 In the circumferential direction of this tread surface 12, there are multiple rows of engagement grooves 1 that match the shape of the chain 20. :3 is provided.

The engagement groove] 5 has a zigzag shape and is formed so that the chain 20 is engaged therewith. In addition, the Tore de side 12
The side L of the tire 1 forms a direction perpendicular to the engagement groove 15.
'7 A plurality of grooves extending toward the goal 14 side]0 are provided. These grooves 16 are grooves for inserting and removing the connecting pins 26 when attaching and detaching the chain 20, which will be described later.They are arranged at eight equal intervals around the circumference so as not to upset the mass balance due to the rotation of the tire 1. It is formed so as to penetrate through the tread surface.

The chain 20 includes a plurality of locking pieces 2 (and connecting pieces 22, etc.).
) Nari, ko! The whitetails are tied together in a row. The locking piece 21 and the connecting piece 22 are each made of a metal with high wear resistance and corrosion resistance. It is rotatably locked. The end locking piece 23 and the end connecting piece 24 form both ends of the chain 20, respectively.
have the same shape and are made of the same material as the locking piece 21 and the connecting piece 22, respectively. These end locking pieces 23 and end reading pieces 2
4 is rotatable by a screw pin 26 which is a locking means, and
By being releasably engaged, the chain 20 can be attached to and detached from the engagement groove 15 of the tire 1.

Note that, as the locking means, a wooden wad pin 26 may be used, and the wad pin 26 may be locked to the two rows of chains 20. By using a split pin (not shown) to prevent the chain pin 26 from coming off, the chain 20 is less likely to come off than the tire 1.

4 is a perspective view showing a part of the running wheel of the second embodiment of the present invention, FIG. 5 is a plan view showing the main part of the chain in FIG. 4, and FIG. 6 is a perspective view of the chain in FIG. FIG. Note that the same reference numerals will be used to describe parts that overlap with those in the first embodiment, and the description will be omitted.

4 to 6, the tread surface 12 of the tire 1
A plurality of rows of engagement grooves 17 matching the shape of the chain 30 are provided in the circumferential direction of the chain 30 .

The engagement 117 is formed to engage with a chain 30, which will be described later, and the trend surface 12 has a plurality of threads 16 that extend toward the sidewall 14 of the tire 1 in a direction perpendicular to the engagement 1f 417. It is formed.

The engagement groove 17 has a horizontal position into which the horizontal locking piece 31 is inserted.
17 a and the vertical groove 17 into which the vertical locking piece 31 is inserted.
The lateral grooves 17
A is also formed with a protrusion 17b into which the space 30a of the chain 30 is inserted.

The chain 30 consists of a plurality of locking pieces 31, and the locking pieces 31 are connected in a chain in a line.

The locking piece 31 is made of the same metal as the chain 20,
Each is shaped like a ring. The chain 30 has a shackle 32 at one end thereof, and this shackle 3
2, the chain 30 is removably engaged with the engagement groove 17 of the tire 1.

The shackle 32 has a U-shape, and has a hole 33a passing through the screw pin 35 at one end 33, and a screw hole 34a at the other end 34. The threaded pin 35 has a head 35a and a threaded part 35b at the other end, and the threaded part 35a is connected to the threaded hole 34a of the shackle 32.
It is removably screwed together. Further, by using a split pin to prevent the threaded pin 35 from being removed, the chain 30 becomes more difficult to come off than the tire 1.

In the above embodiment, since the tire 1 of the running wheel 10 is removably engaged with the chain 20, 30, when driving on a snowy road, the tire 1 is fitted with the chain 20, 30, and the spikes can be removed. Like tires, grip performance on snowy roads is improved. Then, when driving on a paved road after the snow melts, the chain 20.30 can be removed from the tire 1 and used as a normal tire.
At a temperature of 30°, it will no longer catch on the road surface and will not cause dust pollution.

- [Effects of the Invention] As described above, in the running wheel according to the present invention, multiple rows of engagement grooves that match the shape of the chain are formed in the circumferential direction of the trend surface of the tire, and the chain is inserted into these engagement grooves. Since the chain is removably engaged and a part of the chain is exposed from the tread surface of the tire, depending on the usage condition (road surface condition), the chain can be attached to the tire having the engagement groove when driving on snowy roads. By engaging a chain in the matching groove, you can drive on snowy roads, and when you are not driving on snowy roads, you can remove the chain and use it as a regular tire.

Therefore, when driving on snowy roads, the grip of the running wheels with chains is improved, and when driving on paved roads after melting snow, by removing the chains from the running wheels, the chains can pull the road surface. This eliminates the need for dust pollution.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a part of a first embodiment of the running wheel according to the present invention, FIG. 2 is a plan view showing main parts of the chain shown in FIG. 1, and FIG. Side view showing main parts, No. 4
The figure is a perspective view showing a part of the second embodiment of the same running wheel, FIG. 5 is a plan view showing the main part of the chain in FIG. 4, and FIG.
FIG. 2 is a side view showing the main parts of the chain shown in the figure. 1... Tire, 10... Running wheel, 12...
Tread surface, 15.17... Engagement groove, 16... Groove, 2030... Chain (locking member).

Claims (1)

[Claims] Multiple rows of engagement grooves that match the shape of the chain are formed in the circumferential direction of the tread surface of the tire, and the chain is removably engaged with these engagement grooves so that part of the chain is attached to the tread surface of the tire. The running wheels are characterized by being more exposed.