JP3236411B2 - Sliding contact body mounting structure for 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 structure for mounting a sliding contact body of a tire sliding contact device which is provided in, for example, a tire roller or other compacting machine and maintains the tread surface of the tire in a good condition.

[0002]

2. Description of the Related Art Asphalt pavement is a method in which an aggregate such as crushed stone, sand or stone powder is added to bituminous material such as petroleum asphalt for pavement, and the mixture is heated and mixed in an asphalt plant. It is paved in the order of the surface layer. Generally, when applying such asphalt pavement, compaction work is performed to increase the supporting force of the material by minimizing the gap between the particles inside the heated asphalt mixture, and a tire roller is provided as a suitable machine for this. Have been. The tire roller is a machine for compacting by utilizing the characteristics of a pneumatic tire, and there are various tire arrangements, suspension systems, weights and loads, and the arrangement of tires is generally three or five for front wheels. Book,
There are four or six rear wheels, and the rear wheels are arranged so that the rear wheels can roll the part left behind by the front wheels.

In general, the above-mentioned tire roller is provided with a sliding contact device for a tire in which a sliding contact body which slides on a tread surface of the tire and forms a film of a liquid material on the tread surface of the tire is attached to a mounting bracket. Has been established. In the tire sliding contact device, the mounting bracket is supported on the body of the tire roller, and the sliding contact body held by impregnation with a liquid material is located on the tread surface of the tire, and the rotation of the tire, that is, the self-running of the tire roller, Forming a film of the liquid material held in the sliding contact body, the film of the liquid material prevented the asphalt mixture from adhering to the tread surface of the tire of the tire roller, and adhered to the tread surface of the tire. Aggregate is removed.

[0004]

However, the conventional sliding contact device for a tire has the following disadvantages.
That is, the sliding body is generally formed by weaving fibers such as palms. To attach the sliding body to the mounting bracket, a wire or the like is passed through several places of the sliding body, and the wire is attached to the mounting bracket. And attached by twisting both ends. Therefore, it takes a lot of time and effort to attach the sliding contact body to the mounting bracket, which reduces workability. Further, in addition to lack of abrasion resistance and durability, the portion of the sliding contact body through which the wire passes is locally damaged and easily detaches from the mounting bracket, and when the sliding contact body wears over time, There was also a problem that the wire was exposed and the tread of the tire was damaged.

The present invention has been made to solve the above problems, and has as its object to facilitate the work of attaching and detaching a sliding contact to a mounting bracket and to improve the durability of the sliding contact. It is an object of the present invention to provide a sliding body attachment structure for a tire sliding contact device that prevents damage to the tread surface of the tire.

[0006]

According to a first aspect of the present invention, there is provided a sliding contact body mounting structure for a tire sliding contact device according to the present invention.
The sliding member holds the liquid and in sliding contact with the tread of the tire to form a film of the liquid to the tread surface of the tire, the sliding device for a tire according to attach the mounting bracket which is supported on the body, the mounting bracket , Pipe material bent in a square
The mounting portion, and the mounting portion has the square shape of the tire.
A support portion fixed to the body so as to face the tread surface of
The sliding contact body has a plate-shaped base on the back.
At least four corners of this base while fitted
In the vicinity, pipes extending parallel to one another of said mounting part
It is characterized in that mounting members are detachably engaged with the material at two locations , respectively.

According to a second aspect of the present invention, in the first aspect, the mounting members are arranged to face each other.
A structure in which a holding groove is provided between a pair of legs,
Elastically deform the legs of the mounting portion to hold the pipe material of the mounting portion.
It is characterized by being held in a holding groove.

[0008] The third aspect is the first aspect.
Wherein the mounting member is a pipe of the mounting portion.
It is a binding body that can be wound around a material.

[0009]

According to the first aspect of the present invention, there is provided a sliding contact member mounting structure for a tire sliding contact device according to the present invention, wherein a mounting member fixedly mounted near four corners of a base mounted on the back of the sliding contact member. , Mounting
Pipes extending parallel to each other at the bracket mounting part
Since the two parts are detachably engaged with the material, the work of attaching and detaching the sliding contact body is facilitated, and the workability can be improved. Also, by mounting the base on the back of the sliding body, the sliding body uniformly contacts the tire due to the rigidity of the base, so that the sliding body is prevented from being locally worn, and The base and the mounting member do not damage the tread of the tire after wear.

According to the second aspect, the mounting member is provided.
Provided a retaining groove between a pair of legs arranged opposite to each other
The pair of legs are elastically deformed to
Since the pipe member is held in the holding groove, the operation of attaching and detaching the sliding member to and from the mounting bracket is facilitated.

According to the third aspect, the mounting member is provided.
Is a binding body that can be wound around the pipe material of the mounting portion.
Attach and remove the sliding body to the mounting bracket
Work becomes easier.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 7 are diagrams showing a case in which the sliding contact body mounting structure of the tire sliding contact device according to the present invention is applied to a tire sliding contact device provided in a tire roller used for compaction work of asphalt pavement. In these figures, FIG. 1 is a rear view of a main part of a tire roller 1 to which a tire sliding contact device 11 is attached.

As described above, the tire roller 1 is a machine that performs compaction by utilizing the characteristics of a pneumatic tire, and its power transmission system includes a prime mover, a transmission, a reversing device, a final reduction device, and the like. FIG. 1 shows the rear wheel (drive wheel) side. That is, the four tires 3 arranged on the body 2 are divided into left and right pairs, and a differential device 4 is interposed therebetween, and is driven by a roller chain (not shown) so as to be able to advance and retreat. The tire 3 has a flat tread (tread portion) and is used exclusively for a roller having a wide width.

A support member 5 made of a pipe material is fixed to the body 2 of the tire roller 1, and a sliding contact device 11 for a tire is supported on the support member 5. The sliding contact device 11 for a tire includes a support portion 12a positioned in parallel with each other, and a pipe material bent in a rectangular shape.
The sliding contact body 13 is attached to an attachment bracket 12 comprising an attachment portion 12b fixed by welding to the bracket. In the tire sliding contact device 11, the support portion 12 a is externally fitted to the support member 5, and cannot be moved laterally by a stopper such as a pin in the axial direction of the support member 5, and further pivots about the support member 5. At the same time, the sliding member 13 is urged toward the tread surface of the tire 3 by a spring (not shown). The sliding contact body 13 is formed, for example, by forming a non-woven fabric made of artificial fibers, that is, artificial fibers directly formed into a fabric from a fiber state into a rectangular parallelepiped shape, and then bonding a myriad of fine abrasive grains to the fibers with an adhesive. What was made (for example, "Scotch
Bright (trade name)), and various products can be obtained by changing the fibers, abrasive grains and bonding method.

The sliding member 13 is mounted on the base 15 at the back of the sliding member, that is, on the side not in contact with the tread surface of the tire 3. The base 15 is made of a thin plate made of metal or resin and has high rigidity. The center of the base 15 is slightly bent, and the base 15 is formed to be slightly smaller than the area of the back of the sliding body 13. It is mounted with an adhesive (see FIG. 8). With this base 15, the sliding contact body 13 having extremely small rigidity can be reliably supported by the mounting bracket 12. The mounting of the sliding body 13 and the base 15 is not limited to the adhesive.
A cloth tape or a fastener may be attached to the surfaces of the base 15 and the base 15 to be joined to each other, and mounting may be performed using the cloth tape or the fastener. And this base 15
Is attached to the mounting portion 12b of the mounting bracket 12 by a mounting member provided on the base 15, and the configuration of the mounting member includes, for example, those shown in FIGS. . Hereinafter, these mounting members will be described in detail.

The attachment member 14 shown in FIGS. 2 and 3 is formed by bending a thin metal plate into two opposing legs 14a near the four corners of the base 15 and opening upward by the opposing legs 14a. An attachment portion 14 having a holding groove 14c having a bottom portion 14b is fixed with a bottom portion 14d. In addition, the mounting member 17 shown in FIGS.
Mounting members 17a and 17b having different shapes are integrally provided on both edges in the longitudinal direction of the base 15 similar to the above. That is, the mounting member 17a is provided at one edge in the longitudinal direction,
The attachment member 17b is bent in an S-shaped cross section.
At the other edge in the longitudinal direction, it is bent into a C-shaped cross section,
These two mounting members 17a and 17b are provided at positions facing each other and separated by a predetermined distance. further,
The attachment member 18 shown in FIG. 6 is made of a polymer material (for example, rubber,
The holding groove 18a is formed of an elastic body such as resin, and opens at one end in a direction orthogonal to the width direction of the tire 3 and at the other end opens in a direction normal to the tread surface of the tire 3. And two auxiliary plates 19 bent in an L-shape on a base 15 similar to the above.
Are fixed to a position orthogonal to the longitudinal direction at a predetermined distance, and are fixed to the respective auxiliary plates 19 by bolts or the like. On the other hand, the attachment member 21 shown in FIG. 7 is a cord-like body made of a resin material, and its center is fixed to the vicinity of the four corners of the base 15 by rivets or the like.

Next, an example of use of the tire sliding contact device 11 having the above-described configuration will be described. First, the sliding contact body 13 with the base 15 attached to the back is attached to the attachment portion 12b of the attachment bracket 12. At this time, for example, when the mounting member 14 of FIGS. 2 and 3 is provided on the base 15, the opening 14b of the leg portion 14a is pushed and expanded, and the mounting portion 12b is positioned in the holding groove 14c. At this time, the mounting portion 12b
Is in contact with the inner surface of the leg 14a and is in a state of being supported by the elasticity of the leg 14a, or in a state of not being in contact with the inner surface of the leg 14a and merely being located in the holding groove 14c . In any state, if the opening diameter of the leg portion 14a is smaller than the outer diameter of the mounting portion 12b, once the mounting portion 1
2b does not come off after being positioned in the holding groove 14c.

When the mounting member 17 shown in FIGS. 4 and 5 is provided on the base 15, one of the mounting portions 12b positioned parallel to each other is held by the mounting member 17b bent in a C-shaped cross section. After that, the mounting member 17a is pushed and expanded to hold the other side of the mounting portion 12b. According to this, the mounting member 1
7a and 17b are in a state in which the mounting portion 12b is fitted from the outside, and the sliding contact body 13 does not come off from the mounting portion 12b as described above. When the attachment member 18 shown in FIG. 6 is provided, one of the attachment portions 12b is held by the holding groove 18a, and then the other of the attachment portion 12b is held by the holding groove 18b.
Since this mounting member 18 is made of a polymer material such as rubber or resin having high flexibility, each holding groove 1 is formed.
8a and 18b are the mounting portions 1 where the entrance opening is elastically deformed.
Hold 2b securely.

In each of the mounting members 14, 17, and 18, the sliding portion 13 is mounted by holding the mounting portion 12b of the mounting bracket 12, and then the mounting members 14, 17 and 18 are mounted.
A stopper (not shown) made of a rubber material (not shown) is externally fitted to the mounting portions 12b on the left and right sides of the right and left sides 17 and 18, so that the sliding contact body 13 cannot be moved in the lateral direction. on the other hand,
When the mounting member 21 of FIG. 7 is provided on the base 15, the sliding member 13 is positioned below the mounting portion 12b, and then the mounting portion 1
The two ends of the mounting member 21 are joined on the upper side of 2b. At this time, the mounting member 21 is firmly bound to the mounting portion 12b.
As the attachment member 21, for example, a binding band widely used for binding cables, that is, a binding band made of a resin material and having the other end inserted through a through hole formed at one end may be used.

The sliding contact device 1 for a tire constructed as described above.
1 is attached to a support member 5 fixed to the tire roller 1. That is, from the end of the support member 5, the mounting bracket 1
The through-hole formed in the second support portion 12a is inserted, and the sliding body 13 is positioned on the tread surface of the tire 3. Then, the stopper in the lateral direction is stopped by a stopper such as a pin, and the sliding contact body 13 is urged toward the tread surface of the tire 3 by a spring (not shown). This work is similarly performed for each of the left and right tires 3 divided into a pair of right and left.

In the tire sliding contact device 11 thus mounted, the sliding member 13 slides on the entire width of the tread portion of the tire 3 as the tire roller 1 travels. At this time, the sliding body 13 and the base 15 attached thereto
Is slightly bent at its center so that the sliding contact body 13 is formed along the tread surface of the tire 3, so that the contact between the tread surface of the tire 3 and the sliding contact body 13 is further ensured. When a liquid material is poured directly on the tread of the tire 3, the liquid material is transmitted from the tread of the tire 3 to the sliding member 13, and the sliding member 13 is a nonwoven fabric made of artificial fibers. Retained by impregnation. When a liquid material is poured into the sliding member 13, the sliding member 13 retains the liquid material for the same reason as described above. The sliding body 13 holding the liquid material forms a film of the liquid material by sliding contact with the tread surface of the tire 3 as the tire roller 1 runs. This film prevents the asphalt mixture and the aggregate of the roadbed material from adhering to the tread of the tire 3 when the tire roller 1 compacts the asphalt pavement, and promotes a suitable pavement operation. In this case, if a liquid material injection hole (a portion surrounded by a broken line in the drawing) 15a is formed in the center of the base 15 shown in FIGS. 2 to 7, the work can be performed easily and reliably.

Further, by using the above-mentioned "Scotch Bright" or the like for the sliding contact body 13, deterioration such as abrasion due to the operation of the tire roller 1 is reduced, and a liquid material film is always formed satisfactorily. At the same time, the asphalt mixture and the aggregate of the roadbed material adhered to the tread surface of the tire 3 are removed as an additional effect. Further, since the sliding contact body 13 has the base 15 mounted on the back thereof and is mounted on the mounting bracket 12 by the mounting members 14, 17, 18, 21 provided on the base 15, the sliding contact body 13 with the tread surface of the tire 3 with time. Deterioration such as wear due to temporary contact does not occur locally, and its collapse can be prevented. Furthermore, by attaching the base 15,
After the deterioration, the mounting members 14, 17, 18, and 21 do not penetrate through the sliding contact body 13 and are exposed.
The tread surface is not damaged by scratching or the like.

Further, when the sliding member 13 is deteriorated and is to be replaced, the spring is removed to release the urging, and the sliding member 13 is removed by performing the reverse of the operation described above. Should be attached. As described above, by applying the sliding contact body mounting structure of the tire sliding contact device of the present invention, the work of attaching and detaching the sliding contact body 13 to and from the mounting bracket 12 is facilitated, and the workability is significantly improved. be able to. A base 15 is provided on the back of the sliding body 13.
Since the sliding contact body 13 is uniformly contacted with the tread surface of the tire 3 due to the rigidity of the base 15, the sliding contact body 13 is not locally deteriorated, and damage to the tread surface of the tire 3 can be prevented. . Further, since the sliding body 13 is a nonwoven fabric made of artificial fibers, the sliding body 13 retains a liquid material well, improves durability, and improves the reliability of the entire tire sliding apparatus.

[0024]

As is clear from the above description, the following effects can be obtained according to the mounting structure of the sliding contact device for the tire sliding contact device of the present invention. According to the first aspect, the mounting members fixed to the vicinity of the four corners of the base mounted on the back of the sliding contact body are the mounting portions of the mounting bracket supported by the body.
No two places for pipe material extending parallel to each other
The detachable engagement makes it easy to attach and remove the slide contact body, improving workability, and by attaching the base to the back of the slide contact body, The rigidity of the tire makes uniform contact with the tread surface of the tire, so that the sliding body can be prevented from being locally worn, so that the base and the mounting member can be prevented from damaging the tread surface of the tire after the sliding body is worn. .

According to the second aspect, the mounting member
Provided a retaining groove between a pair of legs arranged opposite to each other
The pair of legs are elastically deformed to
Since the pipe member is held in the holding groove, the operation of attaching and detaching the sliding contact member to and from the mounting bracket can be easily performed.

According to the third aspect of the present invention, the attachment member is a binding member that allows the attachment member to be freely wound around the pipe material of the attachment portion.
Mounting the sliding contact body to the mounting bracket,
Removal work can be performed easily.

[Brief description of the drawings]

FIG. 1 is a rear view of a main part showing a tire roller to which a tire sliding contact device according to the present invention is applied.

FIG. 2 is a perspective view showing an example of a sliding contact body of the tire sliding contact device according to the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing another example of the sliding contact body of the sliding contact device for a tire according to the present invention.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a perspective view showing another example of the sliding contact body of the tire sliding contact device according to the present invention.

FIG. 7 is a perspective view showing another example.

FIG. 8 is a cross-sectional view showing a mounting state of the sliding body and the base according to the present invention.

[Explanation of symbols]

 2 Body 3 Tire 11 Sliding device for tire 12 Mounting bracket 13 Sliding member 14, 17, 18, 21 Mounting member 15 Base

Continuation of 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 (3)

(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. The mounting bracket is
Mounting part formed by bending the material into a square shape,
Secure the aircraft so that the square faces the tread of the tire.
And a supporting portion, wherein the sliding contact body has a back portion.
A plate-shaped base is attached to
At least in the vicinity of the four corners, extending parallel to each other
Removably engages two existing pipe materials
A mounting structure for a sliding contact device for a tire sliding contact device, wherein a mounting member to be mounted is fixed. 2. The apparatus according to claim 1, wherein the mounting members are arranged opposite to each other.
A structure in which a holding groove is provided between a pair of legs,
Elastically deform the legs to hold the pipe material of the mounting portion
The sliding contact body mounting structure for a tire sliding contact device according to claim 1, wherein the sliding contact body is held in the groove . 3. The mounting member according to claim 1 , wherein said mounting member includes a pipe member.
2. A binding body which can be freely wound around.
Mounting structure of the mounted tire contact device.