JP3236412B2 - Sliding contact body with blade of tire sliding contact device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding member with a blade of a tire sliding device which is provided in, for example, a tire roller or other compacting machine and can maintain a good tread surface of the tire.

[0002]

2. Description of the Related Art Conventionally, when constructing roads, buildings, and the like, the roadbed and asphalt pavement, etc., which are the foundations thereof, need to have sufficient strength so as not to be deformed by the influence of external force or weather. For this reason, compaction work is performed to increase the supporting force by minimizing the gap between various solid particles constituting the roadbed, asphalt pavement, etc.
As a suitable machine therefor, for example, there is provided a tire roller that uses the characteristics of a pneumatic tire and compacts by kneading action and gravity. There are various types of tire rollers with regard to the arrangement of wheels, suspension system, weight and load. The arrangement of tires is generally three or five front wheels, four or six rear wheels, and the front wheels are left behind. The part is arranged so that the rear wheel can be rolled.

As shown in FIG. 5, the above-mentioned tire roller is usually provided with a sliding member 2 which slides on the tread surface of the tire 1 and forms a film of a liquid material on the tread surface of the tire 1. Is provided with a tire sliding contact device 4 attached to the vehicle. In this tire sliding contact device 4, a mounting bracket 3 is supported on a body 5 of a tire roller, and a sliding contact body 2 holding a liquid material by impregnation or the like is positioned on a tread surface of the tire 1, and the rotation of the tire 1, With the self-running of the tire roller, a film of the liquid material held by the sliding contact body 2 is formed,
The film of the liquid material prevents the asphalt mixture from adhering to the tread surface of the tire 1 of the tire roller.

[0004] Apart from the sliding device 4 for a tire having the sliding member 2 as described above, a device shown in FIG. 6 is also known. The sliding contact device 6 for a tire shown in this figure is made of a plate-like elastic material made of a polymer material such as rubber or resin longer than the width of the tread portion of the tire 1, and its lower edge is attached to the tread portion of the tire 1. A blade 7 formed according to the cross-sectional shape of the tire 1 is attached to the mounting bracket 3 supported on the body 5 of the tire roller by bolts or the like, and the lower edge of the blade 7 is in sliding contact with the tread surface of the tire 1. This is to remove the deposit attached to the tread surface.

[0005]

However, the conventional sliding contact devices for tires 4 and 6 have the following disadvantages. That is, the sliding body 2 of the tire sliding contact device 4 shown in FIG. 5 is in sliding contact with the tread surface of the tire 1 of the tire roller, and a film of the liquid material held by the sliding contact is formed on the tread surface. Therefore, for example, when the tire roller is used for traveling on muddy ground or for compacting the ground made of only fine particles such as crushed stone and sand, the film of the liquid material cannot completely prevent the adhesion, and the tread surface of the tire 1 The sliding contact body 2 comes into contact with the adhered matter such as mud, crushed stone or sand adhered to the sliding member 2. The conventional sliding contact body 2 is generally formed by knitting fibers such as a palm. Therefore, if an adhered substance adheres to such a sliding contact body 2, wear or collapse proceeds, and the life is significantly shortened. It cannot perform its function sufficiently.

On the other hand, the blade 7 of the tire sliding contact device 6 shown in FIG. 6 does not have a function of retaining a liquid material. The liquid material is poured onto the tread surface, and the blade 7 is used to level the liquid material over the entire tread surface. However, since the blade 7 is less flexible than the sliding contact body 2, a gap is easily formed between the lower edge of the blade 7 and the tire 1, and the blade 7 cannot hold a liquid material. There is a possibility that a film of the material cannot be formed well.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to form a film of a liquid material on a tread of a tire well and to remove attached matter adhering to the tread of a tire. The object of the present invention is to provide a sliding contact body with a blade for a tire sliding contact device.

[0008]

SUMMARY OF THE INVENTION A sliding member with a blade of a sliding device for a tire according to the present invention holds a liquid and slides on a tread surface of the tire to form a film of the liquid on the tread surface of the tire. the Settai, the sliding device for a tire according to attach the mounting bracket which is supported on the body, it consisting of man-made fibers
The sliding contact body of the shape is
And the sliding surface of the sliding body is the contour of the tread surface.
Along the width of the tread as a shape along
The sliding contact body orthogonal to the moving direction of the tread of the tire
The side of the tread is shaped to follow the contour of the tread and the width of the tread
Bullet that slides in the direction and removes the deposit attached to the tread surface
It is characterized in that a blade made of a sexual body is arranged.

[0009]

[0010]

The sliding member with a blade of the sliding device for a tire according to the present invention.
According to the arrangement perpendicular to the moving direction of the tire tread
Place the blade on the side of the sliding body
The sliding surface in contact with the tread surface of the
With such a shape, the sliding contact body and the blade are simultaneously in close contact with the tread surface . At this time, when the tire rotates, the sliding body made of artificial fibers forms a film of the retained liquid agent on the tread surface of the tire by impregnation or the like, and the blade removes deposits attached to the tread surface of the tire. Therefore, the blade removes the deposit while the sliding body forms the liquid film on the tread surface of the tire, so that the deposit does not come into contact with the sliding body, and the life of the sliding body can be reduced. Therefore, the reliability of the sliding contact device for a tire is improved.

[0011]

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 4 show a case in which the sliding body with a blade of the sliding contact device for a tire according to the present invention is applied to a sliding contact device for a tire provided in a tire roller used for compaction work on sandy ground, asphalt pavement or the like. FIG. 4 is a rear view of a main part of the tire roller 11 to which the tire sliding contact device 21 is attached.

As described above, the tire roller 11 is a machine that performs compaction using the characteristics of a pneumatic tire.
The power transmission system includes a prime mover, a transmission, a reversing device, a final reduction gear, and the like. FIG. 4 shows a rear wheel (drive wheel) side. That is, the four tires 13 arranged on the body 12
Are divided into pairs of right and left, and a differential device 14 is interposed therebetween, and is driven by a roller chain (not shown) so as to be able to advance and retreat. The tire 13 has a tread (tread portion) that is smooth and has a wide width and is dedicated to a roller.

A support member 15 made of a pipe material is fixed to the body 12 of the tire roller 11, and a tire sliding contact device 21 is supported on the support member 15. The tire sliding contact device 21 includes a support portion 22a positioned in parallel with each other, and a pipe material bent in a rectangular shape and slightly bent at a position at the center in the width direction of the tire 13, and is welded to the support portion 22a by welding. A sliding contact member with blade 23 is attached to an attachment bracket 22 including an attached attachment portion 22b. Such a tire sliding contact device 21
The support portion 22a is externally fitted to the support member 15, is immovable in the lateral direction by a stopper such as a pin in the axial direction of the support member 15, and is rotatable about the support member 15, and is not shown. The sliding member with blade 23 is urged toward the tread surface of the tire 13 by a spring.

The configuration of the sliding member with blade 23 is as follows. That is, as shown in detail in FIGS. 1 and 2, the sliding body 24 of the sliding body 23 with a blade is made of, for example, a nonwoven fabric made of an artificial fiber, that is, an artificial fiber that is directly made into a fabric from a fiber state into a rectangular parallelepiped. After being formed, a countless number of fine abrasive grains are entirely adhered to the fiber with an adhesive (for example, “Scotch Bright” (trade name) manufactured by Sumitomo 3M Limited), and the fibers, abrasive grains and Various products can be obtained by changing the bonding method. The sliding body 24 is mounted on the base 25 at the back, that is, on the side that does not contact the tread surface of the tire 13. The base 25 is made of a thin plate made of metal or resin, has its center slightly bent, and is formed longer than the sliding contact body 24 in a direction orthogonal to the width direction of the tire 13. And it is attached to the back with an adhesive. With this base 25, the sliding member 13 having extremely small rigidity can be reliably supported by the mounting bracket 22. Blades 26 made of a rubber material, for example, acrylonitrile butadiene rubber, are provided on both sides in the longitudinal direction of the sliding body 24, that is, on the sides substantially parallel to the width direction of the tire 13.
Are arranged. The blade 26 is a plate-like body longer than the width of the tire 13 and has a lower edge 26a.
That is, the contact portion with the tread surface of the tire 13 is formed in an arc shape according to the cross-sectional shape of the tread portion, and one surface is aligned with both longitudinal side surfaces of the sliding contact body 24 and the upper edge 26b is It is fixed to the base 25 with screws 27.

The sliding member 23 with the blade constructed as described above.
The mounting bracket 22 is mounted on the mounting portion 22b of the mounting bracket 22 by a mounting member 28 provided on a base 25 mounted on its back. The mounting member 28 is made of an elastic body, for example, a polymer material such as rubber or resin, and has a holding groove 28a opened at one end in a direction orthogonal to the width direction of the tire 13 and a tire 13 And a holding groove 28b that opens in the normal direction of the tread surface of the base 25. Two auxiliary plates 29 bent in an L shape are formed on the base 25 at right angles to the longitudinal direction of the base 25. The auxiliary plate 29 is fixed at a predetermined distance from the
Are fixed by bolts 30.

Next, an example of use of the tire sliding contact device 21 having the above-described configuration will be described. First, one of the mounting portions 22b positioned parallel to each other along the width direction of the tire 13 is held in the holding groove 28a of the mounting member 28, and then the other of the mounting portions 22b is held in the holding groove 28b. The sliding member 2 with blade is attached to the mounting portion 22b of the mounting bracket 22.
3 is attached. Since the mounting member 28 is an elastic body made of a polymer material such as rubber, resin, or the like, the holding grooves 28a and 28b can securely hold the mounting portion 22b by elastically deforming the access opening. I do. Thereafter, the mounting member 28
A stopper (not shown) made of a cylindrical rubber material is externally fitted to the mounting portions 22b on the left and right outer sides of the blade to disable the lateral movement of the sliding contact member with blade 23.

The sliding contact device 2 for a tire constructed as described above.
1 is attached to a support member 15 fixed to the tire roller 11. That is, a through hole formed in the support portion 22a of the mounting bracket 22 is inserted from the end of the support member 15,
The sliding member with blade 23 is positioned on the tread surface of the tire 13. Then, the stopper in the lateral direction is stopped by a stopper such as a pin, and the sliding member with blade 23 is urged toward the tread surface of the tire 13 by a spring (not shown). At this time, the sliding member 24 follows the shape of the tread surface of the tire 13 due to the spring action due to the inherent properties due to its composition and structure, and comes into close contact with the shape of the tread surface of the tire 13, and the blade 26 comes into complete contact with the tread surface of the tire 13. No microscopic gaps are formed between them. In addition, this operation | movement is similarly performed with respect to each of the right and left of the tire 13 divided into one set of right and left.

As shown in FIG. 3 (cross section taken along line AA in FIG. 2), the sliding contact device 21 for a tire thus mounted is
The sliding member with blade 23 slides on the entire width of the tread portion of the tire 13 as the tire roller 11 travels.
At this time, the sliding contact body 24 and the base 25 attached to the sliding contact body 24 are slightly bent at the center so that the sliding contact body 24 follows the contour of the tread surface of the tire 13, and the blade 26 has a tread portion. Since it is formed in an arc shape according to the cross-sectional shape, the contact between the tread surface of the tire 13 and the sliding contact member with blade 23 is more reliably performed.

When the tire roller 11 travels on muddy ground, for example, when a liquid material is poured directly on the tread surface of the tire 13 on the front side or the rear side of the sliding member 23 with a blade, the liquid material is While passing through the above-mentioned microscopic gap while being leveled to some extent, it is transmitted to the sliding contact body 24. The sliding body 24 forms a film of the liquid material over the entire width of the tread portion of the tire 13 while retaining the liquid material by impregnation or the like. On the other hand, particles 30 such as earth and sand adhere to the tread surface of the tire 13 as the tire roller 11 travels on the muddy soil.
And is scraped off. When a liquid material injection hole indicated by reference numeral 25a is formed in the center of the base 26, and the liquid material is poured into the sliding body 24 from the liquid material injection hole 25a,
For the same reason as described above, the sliding contact body 24 holds the liquid material and forms a film of the liquid material over the entire width of the tread portion of the tire 13, and the blade 26 similarly scrapes the particles 30 such as earth and sand. Drop it. Note that the front side or the rear side is related to the driving of the tire roller 11 forward and backward, and is determined according to the situation.

As described above, the sliding member with blade 2 of the present invention
In the tire sliding contact device 21 to which the tire No. 3 is applied, the sliding contact member 24 always satisfactorily forms a film of the liquid material on the tread surface of the tire 13 and the blade 26 removes the deposit attached to the tread surface of the tire 13. Therefore, the attached matter does not come into contact with the sliding contact body 24, and therefore, the degree of deterioration such as wear of the sliding contact body 24 can be reduced. In addition, the sliding body 24 is formed by using the above-described “Scotch Bright” or the like.
Deterioration such as wear due to the operation of the tire roller 11 is reduced, and a film of the liquid material can always be satisfactorily formed.

When replacing the sliding member with blade 23, the operation opposite to the above may be performed to remove the sliding member with blade 23 and attach a new sliding member with blade. However, the sliding member 23 and the blade 26 can be individually replaced.

[0023]

As is clear from the above description , according to the sliding contact body with blade of the tire sliding contact device of the present invention , the tie
Side of the sliding contact body arranged perpendicular to the direction of movement of the tread surface
Place the blade on the surface, and
The sliding surface in contact with the surface must be shaped to conform to the contour of the tread.
With the tread, the sliding contact body and the blade are simultaneously in close contact with the tread, and when the tire rotates, the sliding contact body made of artificial fiber forms a film of the liquid agent held by impregnation or the like on the tread of the tire, The blade removes deposits attached to the tread of the tire. Therefore, the adhering substance does not come into contact with the sliding contact body, so that the life of the sliding contact body can be reduced, and the reliability of the tire sliding contact device can be improved.

[0024]

[Brief description of the drawings]

FIG. 1 is a top view of an essential part of a tire sliding contact device to which a blade sliding contact body of a tire sliding contact device according to the present invention is applied.

FIG. 2 is a side view of a main part of the tire sliding contact device.

FIG. 3 is a cross-sectional view of a main part showing a sliding contact state between the tire sliding contact device and a tire.

FIG. 4 is a rear view of a main part of a tire roller to which the sliding contact device for a tire is applied.

FIG. 5 is a cross-sectional view of an essential part showing an example of a conventional sliding contact device for a tire.

FIG. 6 is a sectional view of a main part showing another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Body 13 Tire 21 Sliding device for tire 22 Mounting bracket 23 Sliding member with blade 24 Sliding member 26 Blade 30 Particle (adhered matter)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60S 1/62-1/68 B60S 3/00-3/06 E01C 19/26-19/27

Claims (1)

(57) [Claims] 1. A sliding contact device for a tire, comprising: a sliding member that holds a liquid and slides on a tread surface of a tire to form a film of the liquid on the tread surface of the tire. , A rectangular slide made of artificial fiber
The contact body is arranged perpendicular to the moving direction of the tread of the tire
And the sliding contact surface of the sliding contact body follows the contour of the tread surface.
In the width direction of the tread, and
Side surface of the sliding contact body orthogonal to the moving direction of the tread surface
In the width direction of the tread,
Is it an elastic body that slides and removes extraneous matter adhering to the tread surface?
A sliding member with a blade for a sliding device for a tire, comprising a blade made of a metal.