JP2744218B2 - Body structure of tire roller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure of a tire roller, which is a kind of construction equipment, and more particularly to a vehicle body outer shell structure.

[0002]

BACKGROUND OF THE INVENTION As is well known, tire rollers are used for finishing (compacting) asphalt pavement or forming a subgrade. In such an operation, tires having different flatness ratios (tire widths) are required in view of the difference in the linear pressure (the rolling pressure acting on the road surface or the subgrade from the tire) or the ease of obtaining a flat finished surface. It is selectively used as appropriate. In other words, when a high linear pressure is required, a standard tire having a high flattening ratio (a so-called high tire width and a small radius of curvature of a tire cross section) is used, and a flat finish is easily performed. A wide tire having a low flatness (a height smaller than a so-called tire width and a larger radius of curvature of a tire cross section) is used.
That is, two types of tire rollers are appropriately selected according to the use from the roadbed and the roadbed to the surface layer, and the work is performed.

In the case of the tire roller, the tire roller is moved to the roadside based on the deck edge of the vehicle body to pave the curb portion of the road or the like based on the experience of the operator. Tire width), for example, if a standard tire and a wide tire are selectively mounted on the same vehicle body, the amount of protrusion of the tire to the vehicle body side is different,
Therefore, the edge of the deck is not used as a reference, and an appropriate pavement operation cannot be performed. In other words, when working on the edge of the deck with the tire roller wearing wide tires with low flatness based on the feeling of wearing standard tires with high flatness, the tires contact the curb and damage the tires Let me
Or, conversely, based on the feeling of wearing a wide tire with a low flatness, when working on a tire roller with a standard tire with a high flatness, based on the deck edge,
A situation occurs in which compaction near the curb cannot be performed.

[0004] Further, if two types of tire rollers with different widths of the deck of the vehicle body are provided in order to keep the amount of the tire protruding from the vehicle body constant, such a disadvantage does not occur.
In other words, the operator can perform the pavement work with the same feeling based on the deck edge, but in such a case, depending on the tire flatness (tire width), it is necessary to prepare a plurality of vehicle bodies corresponding thereto. In such a case, since the mass production of the vehicle body is impaired, the lengths of the pipes, connection cables, and the like provided in the vehicle body are different. Parts must be prepared, which also impairs mass production. Further, considering the later maintenance, the number of parts to be stocked becomes enormous, and not only the price of the product itself but also a large amount of stock greatly increases the price of the maintenance parts.

The present invention has been made in view of such a situation, and has a structure capable of mounting a tire having a desired flatness without impairing the mass production effect and without greatly increasing the number of maintenance parts. An object of the present invention is to provide a vehicle body of a tire roller provided.

[0006]

According to a first aspect of the present invention, there is provided a vehicle body structure of a tire roller according to the present invention. The present invention is characterized in that the overhanging member according to the increase is attached as a separate member.

According to the tire roller constructed as described above, the deck width of the vehicle body is formed to a size corresponding to the standard tire having the highest flatness, and a wide tire having a low flatness is mounted. If an overhanging member having a width equal to the increase in tire width corresponding to the flatness ratio (tire width) is attached to the side of the deck, the operator can perform paving work on the curb portion with the same feeling. it can. Moreover,
If this overhanging member is used as a counterweight of a tire roller or as an iron ballast to be additionally provided when high rolling pressure is required, the counterweight and the like conventionally provided in a water tank or the like can be reduced. , The capacity of the water tank increases accordingly.

[0008]

According to one embodiment of the vehicle body structure of the tire roller according to the first aspect, as in the vehicle body structure of the tire roller according to the second aspect of the present invention, the overhang member is provided in the front-rear direction of the vehicle body. If it is arranged at a distance, the operator can easily and safely move up and down a vertical plane as in the case of a conventional tire roller, by forming a step for the operator to ascend to the deck in the separated space. Can be.

According to one embodiment of the vehicle body structure of the tire roller according to the first or second aspect, the overhanging member is provided in the tire body as in the vehicle body structure of the tire roller according to the third aspect of the invention. If the roller is constructed with a weight that matches the required weight increase, such as the counterweight required for the roller, the conventional counterweight can be completely removed, and in combination with the increase in the capacity of the water tank, the effect of two birds per stone can be achieved. This is a preferred embodiment in that it can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle body structure of a tire roller according to an embodiment of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a plan view showing the structure of a vehicle body structure of a tire roller, FIG. 2 is a side view thereof, FIG. 3 is a rear view of the vehicle body viewed from the rear, and FIG. 4 is a front view of the vehicle body viewed from the front. It is.

In FIG. 1, reference numeral 1 denotes a vehicle body, and three tires 2 for rolling compaction are provided below the vehicle body on the front shaft side (see FIG. 4).
When four tires (see FIG. 3) are arranged in a row on the rear shaft side and the rear tire 2 is positioned in the gap S between the front tires 2 as shown in FIG. 2 is configured so as to have a band shape having the width W of the dimension W of the tire 2 at both ends of the rear shaft. In addition, a wide tire 2 having a low flatness is used as the tire.

In this tire roller, overhanging members 3A and 3B (see the portions shaded in gray in the figure) are provided on both sides of the deck portion 1a of the vehicle body 1 so as to be spaced apart in the front-rear direction of the vehicle body. Have been. This overhang member 3A,
The overhang dimension r in the width direction of the vehicle body of 3B is determined when the wide tire having a low aspect ratio is attached to the vehicle body and when the standard tire having a high aspect ratio is attached to the vehicle body, The projections extend from the side (the concept including the overhang members 3A and 3B) so that the projection dimensions are equal. In the case of this embodiment, the overhanging members 3A and 3B are made of a thick steel plate, and the weight of the overhanging members 3A and 3B is made equal to a balance weight of a tire roller required for rolling. Therefore, in the case of this tire roller, a counterweight or the like provided in a water tank (not shown) built in the vehicle body in the conventional tire roller is removed. That is, the overhang members 3A and 3B play a role of a counterweight or the like in the water tank. As a result, the actual capacity of the water tank is increased by the absence of the conventional counterweight and the like.

By the way, a step 4 for an operator to ascend to the deck 1a is recessed in the vehicle body side wall 1b at an intermediate position between the projecting members 3A, 3B which are separated in the front-rear direction of the vehicle body. That is, the vehicle body side wall 1b on which the step 4 is provided has a vertical surface because the overhang members 3A and 3B do not exist, and is configured so that the operator can easily go up and down on the deck 1a.

In such a case, the overhanging members 3A and 3B
, The weight of the counterweight or the like can be adjusted to a desired weight. Also, the thickness of the steel sheet constituting the counterweight or the like is changed so that the counterweight or the like has a desired weight,
Alternatively, the counterweight or the like may be changed from a hollow shape to a solid shape.

However, in the case of this tire roller, when the wide tire having a low flatness is mounted on the tire, if the overhang members 3A and 3B are not provided, the tire is flattened from the side end of the vehicle body. As compared with the case where a standard tire having a high rate is mounted, the amount of protrusion to the side is increased by an amount corresponding to the difference in the flatness (tire width).
The overhanging members 3A, 3B are attached to the side of the vehicle body, so the operator can use the edge of the vehicle body, that is, overhanging members 3A, 3B.
If the tire roller is moved to the roadside with reference to the side end of 3B, the roadside can be paved with the same feeling as a tire roller equipped with a standard tire having a high flatness.

If the overhanging members 3A and 3B are configured to be detachable by bolting or the like, when a standard tire having a high flatness is mounted, the overhanging members 3A and 3B are mounted.
Is removed, the roadside can be paved with the same feeling using standard tires having a high linear pressure.

According to the vehicle body structure of the tire roller according to this embodiment, the amount of protrusion from the vehicle body side end due to the difference in tire flatness (tire width) is adjusted by the amount of protrusion of the protrusion member. In addition, since the vehicle body itself has to be manufactured (mass-produced) with the same dimensions regardless of the flatness (width) of the tire, a mass-production effect can be obtained. In addition, since pipes and hoses provided in the vehicle body can be of exactly the same dimensions, mass production effects can be expected in terms of parts, and maintenance parts can be shared, resulting in a stock of maintenance parts. Has a large ripple effect of reducing the amount of

In the above embodiment, two overhanging members are provided in the front-rear direction of the vehicle body. However, one overhanging member may be formed continuously in the front-rear direction of the vehicle body. Needless to say.

[0020]

Thus, according to the tire roller of the present invention, it is possible to change the overhang length of the overhang member without impairing the mass production effect and without greatly increasing the number of maintenance parts. The tire can be equipped with a flattened tire (tire width). Therefore, a mass-production effect can be obtained for the manufacturer, and a small number of maintenance parts are required for dealers and the like for maintenance. For the user, if the overhang member is bolted or the like, different tires corresponding to the tire flatness can be used. By simply holding tires and overhang members with different flatness (width) without preparing rollers,
According to the application, the rolling pressure of the road surface or the roadbed can be controlled with the same feeling by using a tire roller equipped with a desired tire.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a vehicle body structure of a tire roller according to the present invention.

FIG. 2 is a side view of the tire roller shown in FIG.

FIG. 3 is a rear view of the tire roller shown in FIG. 1 (view from the rear of the vehicle body).

FIG. 4 is a front view (view from the front of the vehicle body) of the tire roller shown in FIG. 1 in a state where a canopy is omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body 1a ... Deck 1b ... Vertical surface of body 3A, 3B ... Projection member 4 ... Step

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazufumi Nakagawa 2680 Oka, Inami-cho, Kako-gun, Hyogo Kawasaki Heavy Industries, Ltd. In the Banshu Plant (58) Field surveyed (Int. Cl. ⁶ , DB name) E01C 19 / 27

Claims (3)

(57) [Claims] In a vehicle body structure of a tire roller in which a plurality of rolling tires are provided in front and rear below a vehicle body, and tires at side ends are arranged to protrude from the side of the vehicle body, a side of a deck portion of the vehicle body is provided. A vehicle body structure for a tire roller, wherein a projecting member adapted to increase the width of the tire is attached as a separate member. 2. The vehicle body structure of a tire roller according to claim 1, wherein said projecting members are arranged apart from each other in the front-rear direction of the vehicle body. 3. The vehicle body of a tire roller according to claim 1, wherein the overhanging member is configured to have a weight corresponding to a counterweight and / or an iron ballast required for the tire roller. Construction.