JPH09207841A - Crawler belt rubber shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cope with a crawler plate by one kid of a crawler belt rubber shoe by providing a plurality of grousers in the direction orthogonal to the longitudinal direction of a crawler belt on an outer surface side of the crawler plate and forming the crawler belt rubber shoe made of a rubber pad bonded on a belt plate and an outer surface by vulcanization into symmetrical shape for the central line in the longitudinal direction. SOLUTION: A crawler belt rubber shoe A1 is provided to mount it on a crawler plate B1 having a pair of grousers 11, 12 on the right and left, and radius of curvature R11 of a rise part of the grouser 11 is larger than radius of curvature R12 of a rise part of the grouser 12 on the other side. A belt plate 2 of the crawler belt rubber shoe A1 is bent and formed on the right and left at curvature having the same shape as curvature on the side where the radius of curvature is larger, a rubber pad 1 is bonded by vulcanization, the rubber pad 1 is formed by exceeding end parts, and swelling parts 12 , 12 correspond to top faces of the grousers 11, 12, respectively. Consequently, even if there is a difference in the shape of the rise parts of the grousers 11, 12 of a crawler belt, the crawler belt rubber shoe can be mounted on both sides of the right and left sides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler shoe used in a construction vehicle or a vehicle for civil engineering work, and more specifically, an object thereof is to obtain a crawler rubber shoe which can be easily attached to an iron crawler plate. is there.

[0002]

2. Description of the Related Art Tracks for endless tracks used for construction vehicles and vehicles for civil engineering work include a track plate connected to a number of links,
It consists of an iron shoe connected endlessly to each other via a bush and a pin. This iron shoe normally has a single or a plurality of grousers projecting at right angles to the lengthwise direction on its tread surface.

However, this crawler track damages the road surface remarkably when traveling on a paved road surface.
On the tread side of the crawler plate b as shown in Fig. 4, a crawler belt rubber shoe a having a band plate 21 and a pad 22 made of an elastic material such as rubber or urethane adhered to the outer surface thereof is provided at four bolt holes of the crawler plate b. The heads 24 of the bolts are embedded in the positions corresponding to 23, respectively, and the tips of the bolts 25 are projected from the bolt holes 23 of the shoe plate b to the rear surface side, and the cap nuts 26
The one that is fixed by tightening is widely used.

However, there are two types of track plates b having two grousers and one having three grousers.
An example of this is shown in FIG. 13 and FIG.
The one having 27, 28 (FIG. 13) is one for each glosser-2.
In most cases, the rising shapes of 7 and 28 are different from each other, while those having three grousers 27, 28 and 29 (FIG. 14) have the grocer spacing in addition to the above difference in shape. It is customary that (between 27 and 29 and 28 and 29) are different. Therefore, since the crawler belt shoe shoe-a side is formed so as to match the shape of the mounting side of the shoe plate b, that is, so as to completely overlap with this, the mounting directionality can be achieved when mounting the both. There was an inconvenience.

In particular, one of the recently-appearing hook-shaped crawler rubber shoes has the purpose of facilitating the mounting, but when it is mounted on the track plates arranged on the left and right sides of the machine body. Has an advantage in mounting on one side, but has a difficulty in mounting on the other side. More specifically, in the case of a hook-type track rubber shoe in which a hook is fixed to one end of the track rubber shoe and a bolt is fixed to the other side, when the hook is attached to the track plate as the inside of the machine body, the bolt is used. Since the fixed side is located on the outside of the machine body, the mounting work is easy, but the hook on the opposite side of the shoe plate is on the outside and the bolt fixing side that is manually mounted is on the inside of the machine body. It will take a lot of time to install. In the case of such a case, it is necessary to prepare two kinds of crawler belt rubber shoes with the hooks positioned on the opposite side, which inevitably results in an increase in cost.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional techniques, and eliminates the directionality of attachment when attaching a crawler belt rubber shoe, and has a good attachment property. This is a marked improvement. In particular, in the case of a crawler rubber shoe with one side of a hook type, since it is easy to install and one type of crawler rubber shoe can be used for the crawler plates arranged on the left and right of the machine body, A reduction in production cost is achieved.

[0007]

The present invention has been made in order to achieve the above-mentioned object, and its gist is to attach the crawler belts to the track plates which are continuously connected to the left and right sides of the machine body. A crawler belt rubber shoe to be configured, wherein the outer surface side of the crawler plate is provided with a plurality of grousers in a direction orthogonal to the longitudinal direction of the crawler plate, and the crawler belt rubber shoe mounted on the outer surface side of the crawler plate is The present invention relates to a crawler rubber shoe including a band plate and a rubber pad vulcanized and bonded to the outer surface of the crawler plate, and having a symmetrical shape with respect to a center line of the crawler belt rubber in the longitudinal direction of the crawler belt. Preferably, the back length of the front and rear end portions of the belt plate in the longitudinal direction of the crawler belt is equal to or lower than the back length of the glosser portions at the left and right ends of the crawler plate.

To further specify this, a crawler belt rubber shoe is mounted on a crawler plate having a pair of grousers in the longitudinal direction of the crawler belt, and the shape of the crawler plate is the same as that of the grouser. Of the rising shape, the shape is substantially the same as the shape on the side with a large radius of curvature, and is a rubber track shoe attached to a track plate provided with a glosser at the front and rear and in the middle in the longitudinal direction of the track.
The substantially central shape of the strip is substantially the same as the shape of the grouser in the middle of the shoe plate, and the left and right sides of the strip are grooved.
The shape is such that it fits into the side with a narrow spacing between the ser.
In particular, it is characterized in that the lug pattern formed on the ground contact surface of the crawler belt rubber shoe is symmetrical with respect to the center line of the crawler belt rubber shoe in the longitudinal direction of the crawler belt.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The greatest feature of the crawler belt rubber shoe of the present invention is that it is symmetrical with respect to the center line in the longitudinal direction of the crawler belt. Therefore, the greatest feature is that there is no direction when mounting on the crawler plate, and the mounting work can be performed with one kind of crawler belt rubber shoe. In particular, in the case where the attachment means to the track is a hook type, it can be mounted so that the hook type side is always inside the aircraft,
In other words, since the bolt fixing side is always located outside the machine body, the mounting workability is improved.

According to the second and the fourth aspects, the end portion of the strip plate provided so as to face the shoe plate is a grouser when it is attached to the shoe plate.
It is better not to be higher than the top surface. This is because the thickness of the rubber pad is sufficient, and if the tip of the strip is higher than the glosser part, stress concentrates on the rubber at this part, causing rubber cracks and lack of rubber. This is because it becomes a cause and the durability deteriorates. This means that the portion facing the top of the glosser serves as a rubber pad, and since the rubber pad has a sufficient thickness, it is excellent in shock absorption and durability is also improved.
Further, no squeak noise is generated during running work.

According to claims 3 and 4, the glosser
A gap may be formed on the rising surface on one side in some cases, but this does not affect workability and durability. This also applies to the fourth aspect, and the occurrence of misalignment and rattling due to the belt plates overlapping with the intermediate glosser is reduced.

Further, according to the present invention, the lug pattern formed on the ground contact surface of the crawler belt rubber shoe has a symmetrical shape with respect to the center line of the crawler belt rubber shoe in the longitudinal direction of the crawler belt shoe, so that it can be mounted on the belt plate. There is a big merit that there is no direction.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred examples of the crawler belt rubber shoe of the present invention will be further described with reference to the drawings. FIG. 1 is a plan view of a rubber pad side of a _first crawler belt rubber shoe A _{1 according to} the present invention, and FIG.
Is a front view thereof, and FIG. 3 is a left side view thereof. Further, FIG. 4 is a left side view showing a state where the band plate is attached. In the figure, 1 is a rubber pad, 2 is a strip plate, and both are bonded by vulcanization of rubber. A cap nut 3 is welded to the strip 2 and is embedded in the rubber pad 1. The cap nut 3 is used for mounting and fixing to the track plate B ₁ .
Then, hook 4 is provided on the side opposite to the welded portion of this cap nut 3.
This is also welded and is locked to one edge of the shoe plate B ₁ .

[0014] Now, in which track Gomushu -A track of the longitudinal center line of _1, i.e., left and right relative to the track Gomushu -A ₁ itself widthwise center line L of the is designed to be shape symmetrical . More specifically, the crawler belt rubber shoe A ₁ is used for mounting on a crawler plate B ₁ having a pair of left and right glossers 11 and 12, and the radius of curvature R ₁₁ of the rising portion the other side of the glow - is greater than the radius of curvature R ₁₂ of the rising portion of the support -12. The left and right sides of the crawler belt rubber shoe A ₁ are curved with a curvature substantially the same as the curvature (R ₁₁ ) on the side having a large radius of curvature, and the rubber pad 1 is vulcanized and adhered thereto. Then, the rubber pad 1 is formed beyond the end portion of the strip 2 and the bulging portion 1 ₁ ,
1 ₂ each glow - is supposed to correspond to the top surface of the sub-11,12.

For this reason, the crawler belt rubber shoes can be mounted on either the left or right side, although there is a difference in the shape of the rising portions of the crawler belt glossers 11 and 12, and one crawler belt rubber shoe can be prepared. It will be good. Further, in the crawler belt rubber shoe in this example, the hook 4 can always be arranged inside the machine body, and the bolts are always fixed to the outside of the machine body, so that the attachment thereof becomes easy.

It is preferable that the front and rear ends of the belt plate 2 in the longitudinal direction of the crawler belt are designed to have a shorter height than the heights of the grousers 11 and 12, so that stress concentrates on the rubber at the ends of the belt plate. This is prevented, and the rubber thickness on the glosser can be sufficiently secured, so that the durability is improved.

FIG. 5 shows another example A ₂ of the crawler belt rubber shoe of the present invention.
6 is a front view, FIG. 7 is a left side view, and FIG. 8 is a left side view when the shoe is attached to the shoe plate.
In this example, the track plate B ₂ is provided with the left and right and intermediate portions of the grousers 11, 12, 13 and the belt plate 2 also corresponds to the grousers 11, 12, 13. There is. That is, the strip 2 is intermediate glow - a central portion 2 ₀ forming the outer shape of the same shape with respect to the support -13 convex portion 2 of the same shape on the left and right
₁ , 2 and ₂ are formed, and the track rubber shoe A of this example
₂ also has a symmetrical shape in the longitudinal direction of the crawler belt with respect to the center line L. The convex surface portions 2 ₁ , 2 ₂ are shaped to fit into the narrow side of the shoe plate B ₂ between the respective grousers 11, 13 and between 2, 13, respectively. As in the previous example, the rubber pad 1 to be vulcanized and adhered to is formed with bulging portions 1 ₁ and 1 ₂ across both ends of the strip plate 2.

In this example, between the glossers 11, 13 and 1
Between 2,13 are welded two hooks 4 as engaged with the track shoe B _2, are two welded similarly further be cap nut 3. In the figure, reference numeral 5 is a groove for escaping the bolt head for attaching the track plate B ₂ to the link.

Therefore, the directionality with respect to the attachment to the track plate B ₂ is lost, and it is sufficient to always prepare one crawler belt rubber shoe A ₂ to reduce the cost and, in the case of the hook type, the hook side. Can be placed inside the machine body, and the bolt side can always be arranged outside the machine body, so that the mounting work becomes easy. Although there may be a gap between the crawler belt shoe and the crawler belt shoe ₂ when it is mounted on the crawler plate B ₂ , there is no problem in terms of function.

[0020] Then, glow - thickness of the rubber pad to the rubber pad ₁ 1, 1 ₂ are opposed to the top surface of the sub-11,12 is sufficient. As described in the previous example, it is preferable that the heights of both ends of the strip 2 are lower than the heights of the glossers 11 and 12 in terms of performance. In addition, the glossers 11 and 12
The top surface and the rubber pad 1 _1, 1 ₂ do not necessarily have to contact with, in some cases glow - may be varied tall sub-11,12, also rubber pad 1 _1, 1 ₂ sites The bulge position may be changed. Figure 9 shows this glosser-1.
An example of a track shoe B ₃ for changing the tall 1,12, Gros - the service -11 side is an example in which a gap S ₁ between the rubber pad 1 _1.

In the example of FIG. 5 described above, the shape of the crawler plate B ₂ between the grousers 11 and 13 and between the claws 12 and 13 is the same. In this case, the crawler belt rubber shoe A is used. _{Since 2} is symmetrical at the center, no directionality occurs during mounting.

However, as described above, the shapes of the grousers are usually different, and FIG. 10 is a side view when the track plate B ₄ and the track rubber shoe A ₂ are mounted in this example. In this example, the left and right shapes of the central glosser 13 are symmetrical, and the shapes of the rising portions of the glosser 11 and the glosser 12 are different. Therefore, when the crawler belt rubber shoe A ₂ of the present invention is mounted, a gap S ₀ is generated in each part thereof, but it is functionally no problem as described above.

FIG. 11 shows the trouser spacing (1) of the track plate B ₅ .
1 and 13 and 12 and 13) are different, but in this case, the side with a small interval (11, 1 in the illustrated example)
If the belt plate 2 is formed according to (3), the crawler rubber shoe
Since A ₂ is formed symmetrically with respect to the center line, it has no directivity when mounted. In this case, Groser-1
As described above, there is a gap between Nos. 1 and 12, but this has no functional problem.

[0024]

The crawler belt rubber shoe of the present invention eliminates the directionality of attachment when it is mounted on the track plate, and in particular, in the crawler belt rubber shoe with one side hook type, In addition to the ease of mounting, since one type of crawler rubber shoe can be used for the track plates arranged on the left and right of the machine body, the production cost can be particularly reduced.

[Brief description of drawings]

FIG. 1 is a plan view of the first crawler belt shoe A ₁ of the present invention on the rubber pad side.

FIG. 2 is a front view of the crawler belt rubber shoe A ₁ shown in FIG.

FIG. 3 is a left side view of the crawler belt rubber shoe A ₁ in FIG.

FIG. 4 is a left side view showing a wearing state of the crawler belt rubber shoe A ₁ and the belt plate B ₁ in FIG.

FIG. 5 is a plan view of the second crawler belt shoe A ₂ of the present invention on the rubber pad side.

FIG. 6 is a front view of the crawler belt rubber shoe A ₂ shown in FIG.

FIG. 7 is a left side view of the crawler belt rubber shoe A ₂ in FIG.

FIG. 8 is a left side view showing a state in which the crawler belt rubber shoe A ₂ and the belt plate B ₂ in FIG. 5 are mounted.

FIG. 9 is a side view when the track plate B ₃ and the crawler belt rubber shoe A ₂ having different heights of the glosser are attached.

FIG. 10 is a track plate B _{4 in} which the height of the glosser is changed.
FIG. 6 is a side view of when the crawler belt rubber shoe A ₂ is attached.

FIG. 11 is a side view when a track plate B ₅ and a crawler belt rubber shoe A ₂ having different glosser intervals are attached.

FIG. 12 is a main cross-sectional view showing a relationship between a conventional crawler plate and a crawler belt rubber shoe.

FIG. 13 is a side view of a track plate having two glossers.

FIG. 14 is a side view of a track plate having three glossers.

[Explanation of symbols]

A ₁ , A ₂ ... crawler belt rubber shoe of the present invention, B ₁ , B ₂ , B ₃ , B ₄ , B ₅ ... crawler plate, L ... center line of crawler belt rubber shoe, 1 ... rubber pad, ₁₁ , 1 ₂ bulging portion of ‥‥ rubber pad 1, 2 ‥‥ strip, 2 ₀ ‥‥ strip of glow - central portion to support -13 2 _1, 2 ₂ convex surface portions of the left and right ‥‥ strip, 3 Cap nuts, 4 hooks, 5 escape holes for bolt heads, 11, 12, 13 ... Grossers.

Claims (5)

[Claims] 1. A crawler belt rubber shoe which is attached to a crawler plate which is continuously connected to the left and right sides of the machine body to form a crawler belt, wherein the outer surface side of the crawler plate is in a direction orthogonal to the longitudinal direction of the crawler belt. The track rubber shoe equipped with a plurality of grousers and mounted on the outer surface side of the track plate comprises a band plate and a rubber pad vulcanized and bonded to the outer surface, and the center line of the track rubber shoe in the track longitudinal direction. A track shoe with a symmetrical shape with respect to. 2. The crawler belt rubber shoe according to claim 1, wherein the back length of the front and rear end portions of the belt plate in the longitudinal direction of the crawler belt is equal to or lower than the back length of the grosser portions at the left and right ends of the crawler plate. -. 3. A crawler rubber shoe attached to a crawler plate having a pair of grousers in the longitudinal direction of the crawler belt, wherein the shape of the crawler belt is a curvature of the rising shape of the grouser. 3. The crawler belt rubber shoe according to claim 1, wherein the shape is substantially the same as the shape on the side having a large radius. 4. A crawler belt rubber shoe which is attached to a crawler plate having grousers at the front and rear and in the middle of the crawler belt longitudinal direction, wherein the substantially central shape of the crawler plate is the middle part of the crawler plate. The shape is almost the same as the shape of the server, and the left and right sides of the strip are
3. The crawler belt rubber shoe according to claim 1 or 2, wherein the crawler belt rubber shoe has a shape to be fitted into a side having a narrow interval. 5. The crawler rubber shoe according to claim 1, wherein the lug pattern formed on the ground contact surface of the crawler rubber shoe has a symmetrical shape with respect to the centerline of the crawler belt rubber shoe in the longitudinal direction of the crawler belt.