JP3024532U - Concrete apron block for road construction - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a concrete apron block for road laying, which can be easily and surely laid on the road to improve work and prevent unintentional unequal settlement even on soft ground. Another object of the present invention is to manufacture a product of a constant quality with high efficiency in a factory, which does not depend on the weather and requires time and effort in the factory, and to reduce the manufacturing cost. [Structure] An apron main body 1 and a curb portion 2 which is integrally formed with the curb portion 2 projecting from one end in the width direction are formed to a length L, L'of about 2000 mm, and the apron main body and the curb portion The structure in which the joint means 4 for connection is provided on the left and right side end surfaces facilitates the connection between the adjacent apron main body portion and the curb portion, and improves the laying work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete apron block for laying roads, and aims to lay it easily and reliably on the road.

[0002]

[Prior art]

 Conventionally, for example, a roadside shoulder has been distinguished by, for example, laying concrete aprons and curbs in succession to distinguish, for example, car sidewalks. For example, as shown in FIG. 5, these aprons and curbs are laid on a precast curb block b on one end in the width direction of a separate apron part a that is constructed on site and fixed using cement mortar c or the like. There is a precast apron block or the like in which a curb b'is integrally formed at one end of the upper surface of an apron main body a'as in another example shown in FIG.

[0003]

[Problems to be solved by the device]

 However, in the conventional example shown in FIG. 5, the apron part a is formed by pouring concrete in the formwork at the site, curing and solidifying, so that it takes a lot of time and labor for production. Also, the work was inconvenient, depending on the weather. Moreover, since the surface of the apron part a is finely finished by the ironing by hand, the production efficiency is low and a product of constant quality cannot be obtained. Further, in the other conventional example shown in FIG. 6, the apron main body a'and the curb portion b'are factory-manufactured as an apron block, but the length L "thereof is as short as about 600 mm. Therefore, laying required a lot of time and labor, and the work efficiency was low.In addition, the connection between adjacent apron blocks is made by simply butting, so when laying on soft ground, Occasional unequal subsidence.

Therefore, the present invention can easily and surely perform on-site laying work to greatly improve the work efficiency, prevent unintentional unequal subsidence even in soft ground, and the production is not affected by the weather. In addition, it is an object of the present invention to manufacture a product of constant quality with high efficiency in a factory without time and labor, and to provide the manufacturing cost at low cost.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an apron main body having an inclined surface from one side to the other side of the apron, and integrally projects the apron main body at one end on the lowest height side of the inclined surface of the apron main body. In a concrete apron block for road laying that is laid on the road, the apron main body and the curb are formed to have a long length of about 2000 mm and the apron main body and We adopted a means to provide joint means for connection on the left and right side end faces of the curb.

[0006]

[Action]

 Precast at the factory, with a curb at one end in the width direction, apron main body with a long length of about 2,000 mm is provided on the left and right side end faces of the curb and apron main body for connection. It is laid continuously along the road through joint means.

[0007]

【Example】

 A first embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 denotes a concrete apron main body that is precast in a factory. This apron main body 1 descends from one side of the upper surface to the other side so that it is laid at approximately the same height as the paved surface of the road. Of the inclined surface 1a is formed, and the length L thereof is as long as about 2,000 mm, and the thickness T of one end surface thereof is about 150 mm, which is the minimum height (thickness of the inclined surface 1a. ) T'is about 120 mm. Further, the width S of the inclined surface 1a of the apron main body 1 is about 500 mm, which is an area where rainwater and the like can be sufficiently collected.

Reference numeral 2 denotes a curb portion integrally projecting at one end on the lowest height side of the inclined surface 1 a of the apron main body portion 1. This curb portion 2 has a length L ′ of the apron main body portion 1 and Similarly, it is formed as long as about 2000 mm, and its height H is about 320 mm and its width 1 is about 180 mm. Reinforcing bars K may be laid in the apron main body 1 and the curb portion 2 so that tensile strength, bending strength and the like can be sufficiently ensured.

Reference numeral 3 denotes a suspending hole provided on the front surface of the apron main body 1 and the rear surface of the curb portion 2 so that a plurality of suspending holes are appropriately provided. After inserting the short rebar, hoisting equipment and chains (not shown) are used to hoist it to facilitate transportation and laying.

Reference numeral 4 denotes a joint means. The joint means 4 includes a convex portion 5 provided with an appropriate number of the convex portions 5 on the left and right side end surfaces of the apron main body portion 1 and the curb portion 2, and the convex portion 5. The apron main body 1 and the curb portion 2 are formed so that they can be fitted to each other and a concave portion 6 provided on the other side end surface of the apron main body 1.

M is a joint mortar portion packed between the apron main body portion 1 and the curb portion 2. D is the pavement surface of the road, 7 is the cement mortar layer, and 8 is the crush run layer.

The first embodiment of the present invention is configured as described above, and it is conventional that the apron main body 1 is laid on the crush run layer 8 via the cement mortar layer 7 on the road side. Is the same as. However, in this embodiment, at this time, a plurality of suspending holes 3 are appropriately provided on the front surface of the apron main body 1 and the rear surface of the curb 2, so that bolts and short reinforcing bars can be provided in the suspending holes 3. If the hoisting tool and the chain (not shown) are used to hang up after inserting the plug, the apron main body 1 and the curb 2 can be easily transported and laid by the machine without using human power. Will improve.

Then, the apron main body 1 having a similar length L preliminarily cast in a factory and having a curb portion 2 having a length L ′ of about 2000 mm provided at one end in the width direction, that is, a long length of about 2000 mm is used. , Laying sequentially and continuously along the roadside through joint means 4 provided on the left and right side end faces of the apron main body portion 1 and the curb portion 2 at intervals of about 2000 mm at a time. You can This means that the curb b'and the apron main body a'are actually precast at the factory and can be applied at a time about 3 times or more the length of a conventional concrete apron block as shown in FIG. Therefore, the laying work can be performed efficiently in a significantly short time.

The joint means 4 is provided with a plurality of protrusions 5 provided on the right or left side end surface of the apron main body 1 and the curb portion 2, as appropriate, so that the protrusions 5 can be fitted to each other. Since the apron main body 1 and the curb portion 2 are formed by the concave portion 6 provided on the other side end surface, only by fitting the convex portion 5 into the concave portion 6, the adjacent apron main portion 1 and the adjacent apron main portion 1 are formed. It is possible to easily and surely connect the integrated curb portion 2. Further, the apron main body 1 and the curb portion 2 adjacent to each other have the convex portions 5 fitted into the concave portions 6 at a plurality of positions at their connecting ends, so that the apron main body 1 and the curb portion 2 adjacent to each other are not connected to each other. Since it is integrated into the ground, uneven settlement does not occur even when it is laid on soft ground.

Moreover, since the apron main body 1 and the curb portion 2 are not precast in a factory in advance and are not manufactured by on-site construction, they are not affected by weather, and there is no need to trowel the surface. Those efforts can be saved.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the joint means 4 provided on the left and right side end surfaces of the apron main body 1 and the curb portion 2 integral with the apron main body 1 are provided. , Concave portions 20 and 20 provided to face the left and right side end surfaces of the apron main body portion 1 and the curb portion 2 which are adjacent to each other, and at least one of the left and right end portions which can be embedded in the concave portions 20 and 20 by a mortar M It is different from the above-described embodiment in that the connecting portion between the apron main body portion 1 and the curb portion 2 which are adjacent to each other can be connected in a structurally strong manner by being formed by the insertion bar 21 into which the is inserted. Although the shape of the recess 20 is formed to have a cross-sectional shape in the drawing, the shape is not limited to this.

[0017]

[Effect of device]

 As described above, the present invention can easily and reliably perform on-site laying work, greatly improving work efficiency, preventing unintentional unequal subsidence even in soft ground, and manufacturing is affected by the weather. Without the time and effort required in the factory, high-efficiency, consistent-quality products can be manufactured, and the manufacturing cost is low.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a concrete apron block of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view showing a connection state of joint means provided on the side end surfaces of the apron main body portion and the curb portion in the same manner.

FIG. 4 is a sectional view showing another joint means according to the second embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a state in which a conventional curb block of this type is laid on one side of an upper surface of an apron portion for site construction.

FIG. 6 is a perspective view showing a conventional apron block which is also manufactured in a factory.

[Explanation of symbols]

 1 apron main part 1a inclined surface 2 curb part 3 suspension hole 4 joint means 5 convex part 6 concave part 20 concave part 21 streak

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[Procedure amendment]

[Submission date] November 1, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (4)

[Scope of utility model registration request] 1. An apron main body having an inclined surface from one side of the upper surface to the other side, and a curb portion integrally projecting at one end on the lowest height side of the inclined surface of the apron main body,
In a concrete apron block for road laying on the road, the apron main body and the curb are formed to a length of about 2000 mm and are connected to the left and right side end surfaces of the apron main and the curb. A concrete apron block for road laying, characterized in that it is provided with joint means for use. 2. The concrete for road laying according to claim 1, wherein the apron main body has a front surface portion and a rear surface portion of the curb portion provided with a suspending hole capable of being suspended by a suspender. Apron block. 3. The joint means comprises a convex portion provided with an appropriate number of right and left side end surfaces of the apron main body portion and the curb portion, and a convex portion on the other side end surface so that the convex portion can be fitted. A concrete apron block for road laying, which is formed from the recesses provided. 4. The joint means includes a concave portion provided to face left and right side end surfaces of the apron main body portion and the curb portion, and at least one of the left and right end portions which can be embedded in the concave portion by mortar. A concrete apron block for road laying, which is formed from the insertion bar.