JPH0780987A - Method for making asphalt roofing - Google Patents

Abstract

PURPOSE:To provide a method for manufacturing asphalt roofing by forming an asphalt layer with parallel protruding streaks on the surface of its base material. CONSTITUTION:A method for manufacturing asphalt roofing by passing a base material 17 through a gap 23 provided between an upper blade 19 and a lower blade 21, immediately after passed through molten asphalt 10, and by forming a protruding streaks 25 parallel to the surface of the asphalt layer by making the upper blade move up and down at a certain interval.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing asphalt roofing (roof base material), which comprises forming an asphalt layer having parallel ridges on the surface of a substrate.

[0002]

2. Description of the Related Art Asphalt roofing, which comprises an asphalt layer formed on the surface of a substrate, has been conventionally used. That is, the asphalt roofing 1 is provided with a field board 4 on a rafter 3 on a roof, for example, as shown in FIG.
It is laid for waterproofing through the asphalt roofing 1, and the horizontal pier 5 is nailed to the rafter 3 through the asphalt roofing 1 and the base plate 4, and the roofing material 7 such as a roof tile is attached to the pier 5. It locks. Reference numeral 9 is a nail. Then,
When the horizontal pier 5 is fixed in close contact with the surface of the asphalt roofing 1, rainwater is prevented from flowing down along the inclined surface of the asphalt roofing 1.
Therefore, as a result of the pier 5 being constantly wet, the pier 5 will eventually rot and the roofing material 7 will be displaced. Therefore, in order to prevent such a situation, as shown in FIG. 8, a large number of thin plates 2 such as veneer are arranged on the surface of the asphalt roofing 1 along the inclination direction thereof, and these thin plates 2 are The method of nailing the pier 5 via the interposition is adopted. Of course, rather than fixing a large number of thin plates 2 such as veneer to the surface of the asphalt roofing 1 along the direction of inclination, an asphalt layer having parallel protrusions formed on the surface of the base material from the beginning Although it is naturally desirable to use roofing, a method for producing asphalt roofing in which an asphalt layer having parallel ridges is formed on the surface of a substrate has not been heretofore known.

[0003]

In view of such circumstances, the present invention has been made to newly provide a method for producing asphalt roofing in which an asphalt layer having parallel ridges is formed on the surface of a substrate. It is a thing.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a substrate is passed through a gap between an upper blade and a lower blade immediately after passing through a molten asphalt. The present invention provides a method for producing asphalt roofing, characterized in that the upper blade is moved up and down at regular intervals to form parallel ridges on the surface of the asphalt layer.

[0005]

In the present invention, the base material passes through the gap between the upper blade and the lower blade immediately after passing through the asphalt in the molten state. However, the surplus asphalt adhering to the surface of the base material is It is scraped off by the upper blade and the lower blade to form an asphalt layer having a predetermined thickness on the surface of the base material. The excess asphalt scraped off by the upper blade swells above the base material immediately before the upper blade, as shown in FIG.
To form. Thus, the upper blade moves up and down with a certain time interval. When the upper blade descends, an asphalt layer having a thickness corresponding to the distance between the lower edge of the upper blade and the surface of the base material is formed on the surface of the base material. On the other hand, when the upper blade rises and the distance between the lower edge of the upper blade and the surface of the base material increases, a larger amount of asphalt is expelled in accordance with the larger distance from the asphalt bulging portion 10a. Asphalt ridges are formed on the surface of the material depending on the large distance between the lower edge of the upper blade and the surface of the substrate. Since the upper blade moves up and down with a certain time interval as described above, parallel ridges having a predetermined interval are formed in the asphalt layer on the surface of the base material.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings. Reference numeral 11 is a tank for containing the asphalt 10 in a molten state. The asphalt 10 housed in the tank 11 is, for example, blown asphalt, for example, 130-
The temperature is kept at about 200 ° C, preferably about 170 ° C.
Reference numerals 13 and 15 are rolls. The base material 17 formed of paper, polyester film, non-woven fabric, etc. is a roll 13 or 1.
The molten asphalt 10 in the tank 11 is passed through the tank 5. The base material 17 passes through the gap 23 between the upper blade 19 and the lower blade 21 immediately after passing through the molten asphalt 10. The lower blade 21 is fixed, but the upper blade 19 moves up and down at regular time intervals. In this way, the upper blade 19 is moved up and down at regular intervals so that the protrusions 25 parallel to the surface of the asphalt layer 24 are formed. The asphalt layer 24 may be formed on only one surface of the base material 17 (FIG. 5) or may be formed on both surfaces of the base material 17 (FIG. 6). Further, the base material 17 may be infiltrated with straight asphalt or the like.

An electromagnet or the like may be used to move the upper blade 19 up and down with a certain time interval, but in FIG. 2, the upper blade 19 is mechanically moved up and down. Is shown. That is, the upper blade 19 is arranged in the support 30 so as to be vertically movable, and the upper blade 19 is provided between the upper blade 19 and the support 30.
Is provided with a spring 31 that constantly pushes downward, and a protrusion 33 is provided on the upper blade 19, and a cam 37 rotated by a motor 35 lifts the protrusion 33 against the force of the spring 31. Reference numeral 34 is a motor 35 and a cam 3.
It is a transmission means such as a belt or a chain that is associated with 7. In this case, when the cam 37 is rotated by the motor 35, the cam 37 comes into contact with the projection 33 and the projection 33
Is lifted against the force of the spring 31. Therefore, the upper blade 19 rises. When the cam 37 rotates and disengages from the protrusion 33, the protrusion 33 is pushed down by the force of the spring 31, so that the upper blade 19 descends. Reference numeral 38 is a protrusion 3
It is a stopper that determines the descending limit of 3. When the lower limit of the protrusion 33 is determined, the lower limit of the upper blade 19 is also determined. Incidentally. The stopper 38 is an adjustable screw type.

In the case shown in FIG. 1, the injection means 43 is applied from above to the asphalt roofing that has passed through the gap 23 between the upper blade 19 and the lower blade 21.
Is used to inject mineral powder particles such as silica sand, and water is sprayed from below by the water discharge means 45. By adhering the mineral powder particles to the surface of the asphalt roofing, handling of the asphalt roofing such as winding is facilitated and aging of the asphalt is prevented.
In addition, asphalt is cooled by discharging water to the asphalt roofing.

The asphalt roofing 41 manufactured as described above is used as shown in FIG. 3 similarly to the conventional asphalt roofing 1 described above.
Since the asphalt roofing 41 according to the present invention forms the ridges 25 parallel to the surface of the asphalt layer 24, the asphalt roofing 41 is provided on the rafter 3 through the field board 4 so that the ridges 25 are parallel to the inclination direction. The pier 5 directly on the asphalt roofing 41
Can be attached. That is, it is not necessary to dispose the thin plate 2 such as veneer on the surface of the asphalt roofing 41 along the inclination direction thereof. When the pier 5 is directly attached on the asphalt roofing 41, the pier 5 is attached to the ridge 2
Since it is located above 5, there is a gap 33 between the lower surface of the pier 5 and the upper surface of the asphalt roofing 41, which corresponds to the height of the protrusion 25. Therefore, the rainwater flows down through the gap 33 and is ventilated through the gap 33, so that the above-mentioned decay of the splint 5 or the displacement of the roofing material 7 due to the decay can be prevented.

[0010]

As described above, according to the present invention,
It becomes possible to manufacture an asphalt roofing in which an asphalt layer having parallel ridges is formed on the surface of a base material. Therefore, it is not necessary to dispose a thin plate such as veneer on the surface of the asphalt roofing along the inclination direction thereof, so that the construction related to the asphalt roofing becomes remarkably easy.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a manufacturing method according to the present invention.

FIG. 2 is a side view showing an example of means for moving an upper blade up and down.

FIG. 3 is a cross-sectional view showing an example of a usage state of asphalt roofing.

FIG. 4 is a cross-sectional view showing the relationship between the asphalt roofing and the pier according to the present invention.

FIG. 5 is a cross-sectional view showing an example of asphalt roofing according to the present invention.

FIG. 6 is a cross-sectional view showing another example of the asphalt roofing according to the present invention.

FIG. 7 is a perspective view showing the relationship between the asphalt roofing and the pier according to the present invention.

FIG. 8 is a cross-sectional view showing a relationship between a conventional asphalt roofing and a pier.

[Explanation of symbols]

 1 Conventional asphalt roofing 2 Thin plate 3 Barrel 5 Splint 7 Roofing material 9 Nail 10 Asphalt 10a Bulging part 11 Tank 13 Roll 15 Roll 17 Base material 19 Upper blade 21 Lower blade 23 Gap 24 Asphalt layer 25 Ridge 30 Support Body 31 Spring 33 Protrusion 34 Transmission Means 35 Motor 37 Cam 38 Stopper 41 Asphalt Roofing 43 Injecting Means 45 Water Discharging Means

Claims (1)

[Claims] 1. Immediately after passing a base material through molten asphalt, passing through a gap between an upper blade and a lower blade and moving the upper blade up and down with a certain time interval. A method for producing an asphalt roofing, characterized in that parallel ridges are formed on the surface of the asphalt layer by means of.