JP2957960B2 - Concrete products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat plate having a built-in heating element such as a sheet heating element, a blind tile, a curb, and a snowfall groove.
It is related to various concrete products such as grooves, basins, septic tanks, stairs, and fire hydrants.

[0002]

2. Description of the Related Art In snowy areas and cold areas, snow and freezing in winter are serious problems. In the case of concrete products such as blind tiles laid on sidewalks, the protrusions on the top of the tiles are buried due to snow and freezing. And their work is lost. In order to solve such a problem, it is conceivable to mold the tile with a built-in heating element, so that the snow on the top of the tile can be melted, the freezing can be prevented, and the projection can exert its function. Is obtained. By the way, blind tiles are often laid in combination with ordinary tiles without protrusions,
There is a danger that the cord that will be drawn out from the side of the blind tile with a built-in heating element will be interposed between the joint surfaces with the adjacent ordinary tiles, and may be damaged or cut. In addition, since the cords to be interposed between the tiles are fixed integrally to both tiles with a gap between the tiles, that is, joint material such as mortar filled in the joints, it is very difficult to partially replace the tiles. To be troublesome.

[0003]

The first problem to be solved is that the cord can be installed without worrying that the cord drawn on the concrete surface is damaged , and furthermore, the cord can be easily replaced. To provide a concrete product.

[0004]

According to the present invention, there is provided a concrete product having a built-in heating element, wherein a cord of the built-in heating element is formed along a cord drawing direction on a surface of a product main body. with the drawn out through the groove portion, the groove portion, characterized in that it has a flexible cover part openably to the opening edge. The concave groove in the present invention, the surface of the product, ie, the side surface, the upper surface,
It may be any one of the bottom surfaces, and may be formed continuously or discontinuously on a plurality of surfaces. The cross-sectional shape of the concave groove portion is a semicircular shape, a V shape, or another similar shape. Furthermore, the number of concave grooves may be plural, for example,
When a plurality of built-in heating elements are provided, a considerable number may be formed for each code of each heating element, or each code may be converged. When the heating element is a planar heating element, an appropriate number of through holes may be formed in the heating element, and a reinforcing bar or concrete for enhancing the product strength may be passed through the through holes.

[0005]

1 to 3 show one embodiment of a flat plate as an example of a concrete product of the present invention. A concrete flat plate 1 is formed into a rectangular shape having an appropriate thickness. And a planar heating element 2. A groove 4 having a semicircular cross section is formed from end to end on the right side surface 1a of the sheet heating element 2 from which the cord 3 is drawn out. The cord 3 is inserted into the groove 4 at the right end or the left end. It can be withdrawn from any of them. Further, a masking tape 5 is covered on the right side surface 1a, the cord 3 is placed in the concave groove portion 4 and the groove opening is closed, and the joint material filled between the adjacent flat plate 1 at the time of construction is a concave groove portion. 4 so as to be able to be prevented from entering.

FIG. 4 illustrates another embodiment of a flat plate as an example of the concrete product of the present invention. Since the configuration is basically the same as that of the embodiment of FIG.
The description of the common configuration will be omitted, and different configurations will be described. In the embodiment of (A), a masking tape 5 is vertically installed at an opening edge of the concave groove portion 4 in the right side surface portion 1a with its upper edge portion 5a integrally embedded therein. After opening the masking tape 5 and pulling out the cord 3 in an arbitrary direction, the tape 5 resiliently returns and puts the cord 3 in the concave groove portion 4, and the joint material penetrates only to the lower portion of the opening of the concave groove portion 4 during construction. I try not to.

In the embodiment shown in FIG. 4B, the groove 4
The waterproof packing 6 is disposed at the portion where the cord 3 is drawn out. This waterproof packing 6 is made of a cylindrical rubber and has a small diameter portion through which a cord through hole 6a penetrates in the center.
6b and a large diameter portion 6c, and a cord through hole 6a on the small diameter portion 6b side.
Is formed to have the same diameter as or slightly smaller than the cord 3 so that the hole surface is in close contact with the cord 3 so as to prevent intruding water. The cord through hole 6a on the large diameter portion 6c side has an appropriate number of annular protrusions 6d formed on the hole surface.
Has a crimped shape on the cord 3 so as to prevent intruding water. The tip of the small diameter portion 6b protrudes into the concave groove portion 4 so that the cord 3 pulled out from the small diameter portion 6b does not directly contact the concrete at the corner of the drawer. To prevent electrical leakage accidents.

A stepped portion 6e is provided between the small diameter portion 6b and the large diameter portion 6c,
An appropriate number of waterproof ring portions 6f are formed on the outer surface of the large diameter portion 6c, respectively. When the step portion 6e and the waterproof ring portion 6f interlock with concrete, intruding water enters the sheet heating element 2 side. It is staggered. In addition, the corner 6g at the rear end of the large diameter portion 6c is chamfered, and the weight of the ready-mixed concrete at the time of casting and molding,
The packing itself is prevented from being deformed by the vibration of the vibrator for improving the filling of the ready-mixed concrete. When the waterproof packing 6 is made of a silicon-based oil-impregnated rubber, it has good slipperiness when passing the cord 3 and has a durability of about several decades unless exposed to ultraviolet rays. Although not shown, it is also possible to arbitrarily combine the embedding configuration of the masking tape 5 in (A) with the arrangement of the waterproof packing 6 in (B).

FIG. 5 illustrates another embodiment of a flat plate as an example of the concrete product of the present invention. Since the structure is basically the same as that of the embodiment of FIG.
The description of the common configuration will be omitted, and different configurations will be described. The concave groove 4 is formed continuously over the right side 1a and the front side 1b so that the cord 3 can be pulled out from the front side 1b.

FIG. 6 illustrates another embodiment of a flat plate as an example of the concrete product of the present invention. Since the configuration is basically the same as that of the embodiment of FIG.
The description of the common configuration will be omitted, and different configurations will be described. The concave groove 4 is formed continuously over the right side 1a, the front side 1b, and the left side 1c, so that the cord 3 can be pulled out from the front side 1b or the left side 1c.

FIG. 7 illustrates another embodiment of a flat plate as an example of the concrete product of the present invention. Since the configuration is basically the same as that of the embodiment of FIG.
The description of the common configuration will be omitted, and different configurations will be described. The concave groove portion 4 is formed in a continuous annular shape over the right side surface portion 1a, the front side surface portion 1b, the left side surface portion 1c, and the rear side surface portion 1d, and the cord 3 is formed of the front, rear, left and right side surface portions 1a, 1b, 1c, 1d. Withdrawal is possible from any of them so that there is no restriction on the direction of withdrawal.

FIG. 8 illustrates another embodiment of a flat plate as an example of the concrete product of the present invention. Since the configuration is basically the same as that of the embodiment of FIG.
The description of the common configuration will be omitted, and different configurations will be described. The concave groove portion 4 is formed so as to be opposed to the right side surface portion 1a and the left side surface portion 1c, and the concave groove portion 4 in the left side surface portion 1c can work for receiving the cord 3 of the adjacent flat plate 1.

FIGS. 9 and 10 illustrate one embodiment of a catchment basin as an example of the concrete product of the present invention, and the configuration is basically the same as that of the embodiment of FIG. 1 described above. The description of the common components will be omitted, and different components will be described. The concrete collecting basin 7 is formed into a basin having an appropriate depth, and the planar heating element 2 is built in the bottom portion 7a. A groove 4 having a semicircular cross section is formed from end to end in a right side surface portion 7b from which the cord 3 of the sheet heating element 2 is drawn out, and the cord 3 is disposed along the groove 4 at the right end or the left end. It can be withdrawn from any of them.

FIGS. 11 and 12 show one embodiment of a curb as an example of the concrete product of the present invention.
Since the configuration is basically the same as that of the embodiment of FIG. 1, the description of the common configuration will be omitted, and the different configuration will be described. The concrete curb 8 is of a known form, and incorporates the planar heating element 2. A side groove portion 8a of the planar heating element 2 from which the cord 3 is drawn out is formed with a groove 4 having a semicircular cross section from one end to the other end. The cord 3 extends along the groove 4 at the right end or the left end. It can be withdrawn from any of them. Also, the upper surface portion 8b and the lower surface portion
8c, a cord hole 9 is formed so as to communicate with the concave groove 4 so that the cord 3 can be pulled out from the inside of the concave groove 4 to the upper surface or the lower surface. The cord 3 can be passed vertically through the hole 9. Further, a masking tape 5 is vertically provided at an opening edge of the concave groove portion 4 in the side surface portion 8a with the upper edge portion 5a integrally embedded therein.

In the above-described embodiment, the flat plate 1, the water collecting basin 7 and the curb 8 are exemplified. Similarly, various concretes such as blind tiles, U-shaped grooves including snow drifts, septic tanks, stairs, fire hydrants and the like can be used. It goes without saying that it can be used in products.

[0016]

【The invention's effect】

A. According to the first aspect, the cord of the built-in heating element is drawn out through the concave groove formed along the cord drawing direction on the surface of the concrete product main body, so that the cord is pinched between adjacent objects and damaged. It can be installed without worrying about cord breakage / cutting and leakage. In addition, since the concave groove portion is formed along the cord pulling-out direction, wiring work such as connection can be performed efficiently. B. Furthermore, since the concave groove portion has a flexible covering portion at the opening edge so as to be openable and closable, it is possible to block the joint material filling the space between adjacent objects from entering the concave groove portion with the covering portion, The joint material and the cord do not stick together, and the concrete product can be easily replaced.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a flat plate as an example of a concrete product of the present invention.

FIG. 2 is an enlarged longitudinal sectional view of (2)-(2) of FIG.

FIG. 3 is a partially enlarged longitudinal sectional view.

FIGS. 4A and 4B are partially enlarged longitudinal sectional views respectively exemplifying other forms of a flat plate as an example of the concrete product of the present invention.

FIG. 5 is a perspective view illustrating another form of a flat plate as an example of the concrete product of the present invention.

FIG. 6 is a perspective view illustrating another form of a flat plate as an example of the concrete product of the present invention.

FIG. 7 is a perspective view illustrating another example of a flat plate as an example of the concrete product of the present invention.

FIG. 8 is a perspective view illustrating another embodiment of a flat plate as an example of the concrete product of the present invention.

FIG. 9 is a perspective view illustrating a catchment basin as an example of the concrete product of the present invention.

10 is an enlarged vertical sectional view of (10)-(10) in FIG. 9;

FIG. 11 is a front view illustrating a curb as an example of the concrete product of the present invention.

FIG. 12 is an enlarged vertical sectional view of (12)-(12) of FIG. 11;

[Explanation of symbols]

Reference Signs List 1 flat plate 1a right side of flat plate 1b front side of flat plate 1c left side of flat plate 1d rear side of flat plate 2 planar heating element (heating element) 3 cord 4 groove 5 masking tape (cover) 5a above masking tape Edge 6 Waterproof packing 6a Waterproof packing cord hole 6b Waterproof packing small diameter part 6c Waterproof packing large diameter part 6d Annular protrusion 6e Step 6f Waterproof ring 6g Corner 7 Water collecting basin 7a Bottom part of water collecting basin 7b Right side of catchment basin 8 Curb 8a Side of curb 8b Upper surface of curb 8c Lower surface of curb 9 Code hole

Claims (1)

(57) [Claims] 1. A concrete product having a built-in heating element, wherein a cord of the built-in heating element is drawn out through a groove formed along a cord drawing direction on a surface of the product body, and the groove is formed. However, a concrete product characterized by having a flexible covering portion at the opening edge so as to be openable and closable.