JP3367650B2 - Manufacturing aids and manufacturing method for snow-melting blocks - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary tool used for manufacturing a snow-melting block having a watering nozzle and a manufacturing method thereof.

[0002]

Conventionally, as a block for removing snow of this type, Japanese Patent Laid-Open No. 2-261108 discloses a block for snow removal.
A water pipe is embedded inside an elongated block that has a substantially flat top surface and an inclined side surface that widens downward, and a plurality of water spray nozzles are exposed at a predetermined interval on the water pipe to expose the upper surface of the nozzle to the outer surface of the block body. At a minimum, it is erected in a communicating state (claim of the patent), and the water spray nozzle is connected to a branch pipe provided in the water supply pipe.

In the case of molding such a snow-melting block, conventionally, as shown in FIG. 6, the tip of a branch pipe 102 is inserted and connected to a water spray nozzle 101, and the tip surface 103 of the water spray nozzle 101 is connected to a bottom plate of a mold. After placing it against 104, concrete is filled in the mold and vibration compaction is performed. However, in such a manufacturing method, since the sprinkling nozzle 101 and the branch pipe 102 are inserted and connected, a gap is created between the front end surface 103 and the bottom plate 104 during vibration compaction, and concrete may enter the gap or the sprinkling nozzle. The problem that 101 is misaligned tends to occur. Then, the branch pipe 102 may be slightly inclined due to manufacturing error or the like. Therefore, as shown in FIG. 7, there is also a method of providing an elastic rubber plate 105 on the bottom plate 104 corresponding to the tip surface 103, but this method can prevent concrete from entering the gap, but It was not possible to prevent the direction from shifting.

Therefore, as shown in FIGS. 8 and 9, although not publicly known, a punching die 106 is formed of rubber or the like, and the tip of the punching die 106 is brought into contact with the bottom plate 104 and the punching die 10
The tip of the branch pipe 102 is inserted into the base end of 6, and after the concrete is filled and demolded, the cutting die 106 is extracted, and as shown in the plan view of FIG. 9, the water spray nozzle 101 is inserted into the extracted space and branched. A method is conceivable in which the tip surface 103 is connected to the pipe 102 and the tip surface 103 is aligned with the upper surface 112 of the block body 111, and then mortar 113 or the like is filled between the space and the water spray nozzle 101. When 102 is bent, sprinkling nozzle 101 against upper surface 112 of block body 111
The tip surface 103 of the is inclined and finished.

Further, as in the above-mentioned Japanese Patent Application Laid-Open No. 2-261108, in the snow removing block in which the upper surface 112 is narrow,
Since the opening 114 is formed after the punching die 106 is taken, the width between the opening 114 and the edge is narrowed, and this portion is weakened in strength, so that a crack 115 is likely to occur. In this case, it is conceivable to widen the width of the opening 114 and the edge, but the width of the white line of the road is usually about 15 cm, and the upper surface 112 is generally about 15 cm, which is the same as this. is there.

Therefore, an object of the present invention is to provide a manufacturing aid for a snow-melting block and a manufacturing method capable of manufacturing by positioning a watering nozzle correctly.

[0007]

According to a first aspect of the present invention, a water pipe having a branch pipe is arranged in a formwork, a sprinkler nozzle is connected to the branch pipe, and the formwork is filled with concrete. the tip of the sprinkler nozzle exposed to the outer surface of the block body, said water spray nozzle, to produce a body to be connected to the branch pipe, the snow melting block having a tip portion which is screwed detachably on the main body form-Zoho assistant tool for,
It has a screw portion that is detachably screwed to the main body and has substantially the same shape as the tip portion, and has a magnetic force that is attracted to the mold.

According to the structure of the first aspect, at the time of molding, the tip end portion is replaced with an auxiliary tool, and the replaced auxiliary tool is adsorbed to the mold to accurately set the position of the water spray nozzle. If the auxiliary tool and the tip portion are exchanged after molding, the tip surface of the tip portion can be properly fitted to the outer surface of the block body.

According to a second aspect of the present invention, a water pipe having a branch pipe is arranged in a mold, a water spray nozzle is connected to the branch pipe, concrete is filled in the mold, and the tip of the water spray nozzle is connected. In the method of manufacturing a snow-melting block, which is exposed to the outer surface of the block main body, the water spray nozzle has a main body connected to the branch pipe, and a tip portion detachably incorporated in the main body, and the tip portion is almost the same as the tip portion. Using an auxiliary tool having the same shape that is detachably incorporated in the main body and has a magnetic force that is attracted to the mold, the auxiliary tool is incorporated into the main body of the water spray nozzle before the concrete is filled, and the auxiliary tool is It is a manufacturing method in which concrete is filled in a state of being adsorbed on a mold, and after removing the mold, the auxiliary tool and the tip portion are exchanged.

According to the structure of the second aspect, since the auxiliary tool is adsorbed to the mold, no gap can be formed between the tip surface of the water spray nozzle and the mold during manufacturing, and the direction can be shifted. Instead, by removing the mold and then exchanging the tip part with the auxiliary tool, a state in which the tip surface of the water spray nozzle is properly aligned with the outer surface of the block body can be obtained.

A third aspect of the present invention is a manufacturing method in which the auxiliary tool is detachably screwed to the main body.

According to the third aspect of the invention, the auxiliary tool and the tip portion can be easily replaced by screwing.

Further, a fourth aspect of the present invention is a manufacturing method in which the auxiliary tool and the mold are engaged with each other by projections and depressions.

According to the structure of the fourth aspect, the position of the water spray nozzle can be correctly set by the concave and convex engagement.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 to FIG. 5 show an embodiment of the present invention, and FIGS. An example of a snow block is shown, in which a water pipe 2 is embedded in a length direction in a block body 1 of the snow removing block, and connecting female cylinders 3 are provided at both ends of the water pipe 2 and these connecting female cylinders are provided. 3, 3 are connected to each other by an inserted short pipe (not shown), and branch pipes 4 are erected at predetermined intervals on the water supply pipe 2, and a water spray nozzle 5 is attached to the tip of the branch pipe 4. Has been done. The water supply pipe 2 and the branch pipe 4 can be formed by pipes, for example, steel pipes. Also, FIG.
As shown in the sectional view of FIG. 1, the block body 1 has a substantially flat upper surface 6 and inclined side surfaces 7, 7 that widen downward.

As shown in FIG. 2, the sprinkler nozzle 5 is
It is composed of a main body 11 made of cast iron and the like, and a tip portion 21 that is detachably incorporated into the body 11 by screwing. The tip portion 21 is a central portion on the tip side of the water spray nozzle 5. An insertion receiving portion 13 into which the distal end of the branch pipe 4 is inserted is provided at the base end 12 of the main body 11 having a substantially cylindrical shape, and the insertion receiving portion 13 is provided with a sleeve 14 made of an elastic body such as rubber. It is provided.
Further, a taper portion 15 is integrally provided on the tip side of the main body 11,
A cylindrical large-diameter portion 16 having a large diameter is integrally provided on the upper portion of the tapered portion 15, and further, a ring-shaped partition wall 17 is integrally provided on the distal end side of the insertion receiving portion 13, and an inner circumference of the partition wall 17 is provided. The female screw portion 18 is formed. A head portion 22 of the tip portion 21 is integrally provided with a stepped tube portion 23 in the center, and a substantially cylindrical water amount adjusting valve 24 is inserted and arranged in the tube portion 23 and is locked to the tube portion 23. The water amount adjusting valve 24 is fixed by a C-shaped retaining ring 25 to integrate them, and an O-ring 26 is provided between the water amount adjusting valve 24 and the cylindrical portion 23. Further, an adjusting screw 27 is screwed into the water amount adjusting valve 24, and the water amount adjusting valve 24 has a lower opening of the water amount adjusting valve 24 and the main body 11.
A communication hole 28 that communicates with the upper part of the inside is bored. A tool is locked in the tool groove 27A at the tip of the adjusting screw 27 and the adjusting screw 27 is rotated to adjust the opening area of the communicating hole 28. By doing so, the amount of water sprinkled can be adjusted. Incidentally, in this example, the tool groove 27A is a minus groove with which a minus driver is engaged. The outer surface of the head portion 22 is the tip surface 22A, which is flush with the tip of the large diameter portion 16,
The head 22 is provided with a plurality of water spray holes 29. Also,
An O-ring 30 is provided between the head portion 22 and the large diameter portion 16. A male screw portion 31 is formed on the outer periphery of the water amount adjusting valve 24 on the proximal end side. By screwing the male screw portion 31 into the female screw portion 18, the tip portion 21 can be attached to and detached from the main body 11. Further, an O-ring 26A is provided between the base end of the water amount adjusting valve 24 and the partition wall 17.
The O-rings 26, 26A are provided in the water amount adjusting valve 24.

The auxiliary tool 32 of the present invention will now be described. As shown in FIG.
A cylindrical portion 34 is integrally formed in the center of the head portion 33 and has a male screw portion 35 that is screwed to the female screw portion 18 at the base end of the cylindrical portion 34. Further, the O-ring 37 is attached to the groove 36 formed around the head 33. A circular groove 38 is formed in the center of the head portion 33, and a ring-shaped permanent magnet 39 is fixed in the groove 38.
The tip surface 39A of 39 is set lower than the tip surface 33A of the head 33, and the hole portion at the center of the permanent magnet 39 is an engaging recess 40. Further, a plurality of tool engaging grooves 41 are provided on the tip surface 33A of the head portion 33, and the tool engaging grooves 41 have a circular cross section. Incidentally, reference numeral 42 in FIG. 2 denotes a cap that closes the upper portion of the water amount adjusting valve 24 and is detachably provided.

In the figure, reference numeral 51 denotes a bottom plate of a mold 50 for molding the snow-removing block. The bottom plate 51 is made of a material such as metal to which a magnet is attracted, and the inner surface of the bottom plate 51 is An engaging protrusion 52 that engages with the engaging recess 40 is provided corresponding to the position of the water spray nozzle 5. In this example, the engaging protrusion 52 is provided.
Is fixed to the bottom plate 51 by screwing.

Next, a method of manufacturing a snow-melting block using the auxiliary tool 32 will be described.
Remove 21 and screw auxiliary tool 32 in its place. Water pipe 2
Is placed in the frame 50, the branch pipe 4 is fitted into the insertion receiving portion 13, the water spray nozzle 5 is directed downward, and the engaging concave portion 40 and the engaging convex portion 52 are engaged as shown in FIG. The tip side of the water spray nozzle 5 is aligned with the bottom plate 51. In this state, the surface of the tip of the large diameter portion 16 of the water spray nozzle 5 and the tip surface 33A are brought into close contact with the inner surface of the bottom plate 51 by the permanent magnet 39 of the auxiliary tool 32. After this, formwork 50
Even if the inside is filled with concrete, the concrete does not enter between the tip of the water spray nozzle 5 and the bottom plate 51, and the main body 11 of the water spray nozzle 5 is displaced even if the concrete is filled and vibration mold clamping is performed. Without performing, curing and demolding are performed, and after removing from the bottom plate 51, the auxiliary tool 32 is removed from the main body 11 and the tip portion 21 is screwed to the main body 11. By doing so, the upper surface of the water spray nozzle 5 can be reliably formed flush with the upper surface 6 of the block body 1.

As described above, in this embodiment, in accordance with claim 1, the water pipe 2 having the branch pipe 4 is arranged in the mold 50, and the water spray nozzle 5 is connected to the branch pipe 4 to form the mold. 50 is filled with concrete, the tip of the water spray nozzle 5 is exposed on the upper surface 6 which is the outer surface of the block main body 1, and the water spray nozzle 5 is detachably screwed to the main body 11 connected to the branch pipe 4 and the main body 11. Manufacturing a snow-melting block having a leading end portion 21
Form-Zoho jog 32 for, and having a threaded portion serving as a male screw portion 31 is screwed detachably to the main body 11 at substantially the same shape as the tip portion 21, the magnetic force adsorbing the bottom plate 51 of the mold 50 Since the auxiliary tool 32 has the auxiliary tool 32, the tip end portion 21 is attached to the auxiliary tool 32 at the time of molding.
By replacing the auxiliary tool 32 with the bottom plate 51 of the mold 50, the position of the water spray nozzle 5 can be accurately set. If the auxiliary tool 32 and the tip part 21 are replaced after molding, the tip part The front end surface 22A of 21 is properly fitted to the upper surface 6 of the block body 1.

As described above, in this embodiment, in accordance with claim 2, the water supply pipe 2 having the branch pipe 4 is arranged in the mold 50, and the water spray nozzle 5 is connected to the branch pipe 4 to form the mold. In the method for manufacturing a snow-melting block in which 50 is filled with concrete and the tip of the water spray nozzle 5 is exposed on the upper surface 6 which is the outer surface of the block body 1, the water spray nozzle 5 includes a main body 11 connected to the branch pipe 4, An auxiliary tool 32 having a tip portion 21 that is detachably incorporated in the main body 11, is detachably incorporated in the main body 11 in substantially the same shape as the tip portion 21, and has a magnetic force that is attracted to the bottom plate 51 of the mold 50. Before the concrete is filled, the auxiliary tool 32 is incorporated in the main body 11 of the sprinkling nozzle 5, and the auxiliary tool 32 is used to form the mold 50.
Since it is a manufacturing method in which concrete is filled in a state of being adsorbed to the bottom plate 51 of the mold, and after the mold is removed, the auxiliary tool 32 and the tip portion 21 are exchanged, the auxiliary tool 32 adheres to the bottom plate 51 of the form 50, so There is no gap between the tip surface 22A of the sprinkling nozzle 5 and the mold 50, and the direction does not shift, and after removing the mold, the auxiliary tool 32 and the tip portion 21 are replaced, so that the sprinkling nozzle It is possible to obtain a state in which the front end surface 22A of 5 is properly aligned with the upper surface 6 of the block body 1.

As described above, in this embodiment, the third aspect
Therefore, the auxiliary tool 32 is detachably screwed to the main body 11, and therefore the auxiliary tool 32 and the tip portion 21 can be easily replaced by screwing.

Further, as described above, in this embodiment, the auxiliary tool 32 and the mold 50 are provided in the concave portion 40 and the convex portion 52 in accordance with Claim 4.
Since it is the manufacturing method in which the concave and convex portions are engaged with each other, the position of the water spray nozzle 5 can be set correctly.

Further, as an effect of the embodiment, since the O-ring 37 is attached to the head 33 of the auxiliary tool 32, the cement liquid or the like does not enter the main body 11. Further, since a plurality of tool engaging grooves 41 are provided on the tip end surface 33A of the head portion 33, the attachment / detachment can be easily performed. Further, since the tip surface 39A of the permanent magnet 39 is set lower than the tip surface 33A of the head 33 in advance, even if dust such as sand iron adheres to the tip surface 39A of the permanent magnet 39, the tip surface of the head 33 is 33A can be brought into close contact with the inner surface of the mold 50. Further, since the manufacturing method is one in which the auxiliary tool 32 is repeatedly used, the manufacturing unit price can be reduced by repeated use.

The present invention is not limited to the above embodiment, but various modifications can be made within the scope of the present invention. For example, in the embodiment, the tip portion is screwed to the body, but the tip portion may be detachably incorporated into the body by using a screw or the like that is separate from the tip portion, or the tip portion may be detachable by a pin or the like that is separate from the tip portion. It may be incorporated into. Further, although the metal assisting tool is shown, the assisting tool may be formed of synthetic resin or the like, and the permanent magnet may be provided on the assisting tool. Further, for example, the auxiliary tool may have substantially the same shape as the water amount adjusting valve 24, and in this case as well, the auxiliary tool may be provided with a magnetic force that is attracted to the mold. Further, the auxiliary tool may be provided with an engaging convex portion, and the engaging concave portion which engages with the engaging convex portion may be provided in the mold.

[0026]

According to the first aspect of the present invention, the water supply pipe having the branch pipe is arranged in the form, the sprinkler nozzle is connected to the branch pipe, and the form is filled with concrete. Of which the water spray nozzle has a body connected to the branch pipe, and a tip portion detachably screwed to the body,
Form-Zoho assistant tool for the production of, and has a screw portion that is screwed detachably to the body at approximately the same shape and the tip portion, which has a magnetic force for adsorbing the mold, sprinkling It is possible to provide a manufacturing aid for a snow-melting block, in which the nozzle can be correctly positioned and manufactured.

According to a second aspect of the present invention, a water pipe having a branch pipe is arranged in the mold, a water spray nozzle is connected to the branch pipe, concrete is filled in the mold, and the tip of the water spray nozzle is connected. In the method of manufacturing a snow-melting block, which is exposed to the outer surface of the block main body, the water spray nozzle has a main body connected to the branch pipe, and a tip portion detachably incorporated in the main body, and the tip portion is almost the same as the tip portion. Using an auxiliary tool having the same shape that is detachably incorporated in the main body and has a magnetic force that is attracted to the mold, the auxiliary tool is incorporated into the main body of the water spray nozzle before the concrete is filled, and the auxiliary tool is It is a manufacturing method in which concrete is filled in a state in which it is adsorbed to a mold, and after the mold is removed, the auxiliary tool and the tip portion are exchanged, and a sprinkler nozzle for snow can be correctly positioned and manufactured. Method for producing a click can provide.

A third aspect of the present invention is a method for manufacturing a snow-melting block, wherein the auxiliary tool is detachably screwed to the main body, and the sprinkling nozzle can be positioned correctly. Can be provided.

Further, a fourth aspect of the present invention is a method for manufacturing a snow-melting block, which is a manufacturing method in which the auxiliary tool and the formwork are engaged with each other in a concavo-convex manner. Can be provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a manufacturing method showing an embodiment of the present invention, in which an auxiliary tool is incorporated in a main body of a water spray nozzle.

FIG. 2 is a partially cutaway sectional view of a water spray nozzle showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of an auxiliary tool showing an embodiment of the present invention.

FIG. 4 is a cross-sectional view in the length direction of the snow-melting block showing an embodiment of the present invention.

FIG. 5 is a cross-sectional view in the width direction of the snow-melting block showing an embodiment of the present invention.

FIG. 6 is a cross-sectional view showing an example of a conventional manufacturing method.

FIG. 7 is a cross-sectional view showing an example of another conventional manufacturing method.

FIG. 8 is a cross-sectional view showing another manufacturing method.

FIG. 9 is a plan view of a block body according to another manufacturing method.

[Explanation of symbols]

1 block body 2 water pipes 4 branch pipes 5 watering nozzle 11 body 21 Tip 32 Auxiliary equipment 39 Permanent magnet 40 Engagement recess 50 formwork 51 Bottom plate 52 Engagement protrusion

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B28B 23/00 B05B 1/06

Claims (4)

(57) [Claims] 1. A water supply pipe having a branch pipe is arranged in a mold, a water spray nozzle is connected to the branch pipe, concrete is filled in the mold, and a tip of the water spray nozzle is attached to an outer surface of a block body. And a water spray nozzle for manufacturing a snow-melting block having a main body connected to the branch pipe and a tip portion detachably screwed to the main body.
A Zoho aid tool, manufacturing the tip portion and with substantially the same shape in having a screw portion that is screwed detachably to the body, the snow-melting block characterized by having a magnetic force for adsorbing the mold Auxiliary equipment. 2. A water supply pipe having a branch pipe is arranged in a formwork, a water spray nozzle is connected to the branch pipe, concrete is filled in the formwork, and the tip of the water spray nozzle is attached to the outer surface of the block body. In the method for manufacturing a snow-dissipating block exposed at, the water spray nozzle has a main body connected to the branch pipe, and a tip portion detachably incorporated in the main body,
With the aid of having a magnetic force that is detachably incorporated into the main body in substantially the same shape as the tip portion, and has a magnetic force that is attracted to the mold, the auxiliary tool is incorporated into the main body of the water spray nozzle before the concrete is filled, A method for manufacturing a snow-melting block, characterized in that concrete is filled in a state where the auxiliary tool is adsorbed to the mold, and after the mold is removed, the auxiliary tool and the tip portion are exchanged. 3. The method for manufacturing a snow-melting block according to claim 2, wherein the auxiliary tool is detachably screwed to the main body. 4. The method for manufacturing a snow-removing block according to claim 2, wherein the auxiliary tool and the mold are engaged with each other in a concavo-convex manner.