JP6851769B2 - Rain blower - Google Patents

Description

The present invention relates to a rain blowing device to Fukitoba rain outside a predetermined area in order to prevent the rain from falling in a predetermined area.

As a rain blow-off device that blows rain out of a predetermined area in order to prevent rain from falling into a predetermined area, for example, an air type that blows rain with air so that concrete placing work can be performed even in rainy weather. A roofing device for a construction site provided with a roof mechanism is known (see Patent Document 1).

Japanese Unexamined Patent Publication No. 7-217219

However, in the above-mentioned roofing device for construction sites as a rain blow-off device, since the blower is installed so that the blowing direction is horizontal, for example, the amount of rain is large, the raindrops are large, and the rain falling speed is fast. In some cases, in order to effectively blow off rain, an expensive compressor with high output for generating high pressure air (compressed air) is required, which is uneconomical.
The present invention provides an economical rain blow-off device capable of effectively blowing rain out of a predetermined region in order to prevent rain from falling into a predetermined region.

The rain blower according to the present invention is a rain blower provided with a plurality of blowers installed so that the direction of air is directed upward at a position above an area where rain is not desired to fall, and it is desired to drop rain. The non-existing area is the planned concrete placement area below the area surrounded by the four column reinforcements arranged so as to be located at the four corners of the square when viewed from directly above, and the two adjacent areas are adjacent to each other. Since multiple blowers are installed so as to form one side of a square straddling between the upper ends of the column reinforcement, it is possible to prevent rain from being mixed into the concrete in the planned concrete placement area, and the concrete It is possible to perform concrete placing work without deteriorating the performance.
In addition, it is a rain blower equipped with a plurality of blowers installed so that the direction of ventilation is upward above the area where rain does not want to fall, and the column reinforcements are arranged at predetermined intervals in one direction of the building. In the planned concrete placement area where two or more columns are installed in a matrix and two or more columns are installed in the other direction of the building at a predetermined interval. It is provided along the other direction so as to straddle the upper part of a plurality of column reinforcements located along the other direction located in the second row in one direction, and the blowing direction is upward toward the first row in one direction. A plurality of blowers installed so as to be, and a plurality of column reinforcements located along the other direction located in the third row in one direction are provided along the other direction so as to straddle the upper part of the reinforcements. Multiple blowers installed so that the direction is upward toward the fourth row in one direction, and multiple column reinforcements located along the other direction located in the second row in one direction and one direction. It is provided along the other direction above the intermediate position between the plurality of column reinforcements located along the other direction located in the third row of the above, and the ventilation direction is toward the first row in one direction. Multiple blowers installed facing upward, multiple column reinforcements located along the other direction located in the second row in one direction, and the other direction located in the third row in one direction. A plurality of blowers installed along the other direction above the intermediate position between the plurality of column reinforcements located along the same direction so that the blowing direction is upward toward the fourth row in one direction. Since the configuration is provided with, two or more column reinforcements are installed in one direction of the building at a predetermined interval, and two or more column reinforcements are installed in the other direction of the building at a predetermined interval. By doing so, it is possible to prevent rain from falling on the planned concrete placement area where column reinforcements are provided in a matrix, and it is possible to perform concrete placement work on the planned concrete placement area in rainy weather. .. That is, it is possible to prevent rain from being mixed into the concrete, and it is possible to perform the concrete placing work without deteriorating the performance of the concrete. Further, in rainy weather, the work of placing concrete on the lower side of the column reinforcement can be performed in a wide range, and the delay in the construction period due to rainy weather can be suppressed.

The figure which shows the principle of the rain blowing method (Embodiment 1). The figure which looked at the rain blow-off device from the top (the first embodiment). The figure which looked at the rain blow-off device from the top (the second embodiment). FIG. 3 is a perspective view showing a rain blow-off device (Embodiment 3). The figure which looked at the rain blow-off device from the side (the third embodiment). The figure which looked at the rain blow-off device from the side (the fourth embodiment).

Embodiment 1
In the rain blowing method according to the first embodiment, as shown in FIG. 1, a plurality of blowers 1, 1 ... Are installed above the region X in which the rain is not desired to fall so that the blowing directions are the same and upward. Then, the wind from the plurality of blowers 1, 1 ... Is made to collide with the raindrops and is blown out of the region X in which the raindrops are not desired to fall.
That is, a plurality of blowers 1, 1 ... Are arranged in a row (direction orthogonal to the paper surface in FIG. 1 and vertical direction in FIG. 2) on the same horizontal plane 1H at a position above the region X in which rain is not desired to fall. In addition, the blowing directions 1F, 1F ... Of the plurality of blowers 1, 1 ... Are set to be in the same direction and upward.
The blowing directions 1F, 1F ... Of the wind blown from the blowers 1, 1 ... Are set so that the inclination angle with respect to the horizontal plane 1H is a predetermined angle θ and is inclined upward. That is, the blowers 1, 1 ... Are blown from the blowers 1, 1 by being mounted on a predetermined mounting portion so that the rotation center axis of the rotary blade (fan) is tilted by a predetermined angle θ with respect to the horizontal plane 1H. The wind blowing directions 1F and 1F are set so as to incline upward at a predetermined angle θ with respect to the horizontal plane 1H.
The predetermined angle θ is preferably set in the range of, for example, about 15 ° to 60 °, preferably in the range of about 30 ° to 45 °.

The rain blow-off device to which the above-mentioned rain blow-off method is applied is provided with a plurality of blowers 1, 1 ... Installed so that the blow direction 1F is in the same direction and upwards above the region X in which the rain is not desired to fall. It is a composition.
The plurality of blowers 1, 1 ... Are installed and configured in, for example, the installation unit 1C. As the installation unit 1C, for example, an installation frame configured so that a plurality of blowers 1, 1 ... Can be installed side by side in a horizontal row may be used.
For example, as shown in FIG. 2, when the region X in which rain does not want to fall is a cubic or rectangular parallelepiped region, pillars 3 and 3 are provided at a pair of adjacent corners in the region X, respectively, and these pillars 3 are provided. A blower group 1A composed of a plurality of blowers 1, 1 ... Installed in the installation portion 1C is installed so as to straddle between the upper end surfaces 3t, 3t of 3 and 3, and the wind from the plurality of blowers 1, 1 ... It may be configured so that the raindrops collide with the raindrops and the raindrops are blown out of the region X in which the rain is not desired to fall.

As the blower 1, for example, a commercially available general blower 1 having a diameter of a rotary blade rotated by a motor having a diameter of about 400 mm to 500 mm may be used, which is relatively inexpensive.

According to the rain blow-off method and the rain blow-off device according to the first embodiment, the wind is blown diagonally upward from the plurality of blowers 1, 1 ... It becomes possible to blow off the area X that is not desired to be dropped, and it is possible to effectively suppress the rain from falling to the area X that is not desired to be dropped.
In particular, by setting the blower directions 1F of the plurality of blowers 1, 1 ... Upward, an expensive compressor with a high output is provided as compared with a conventional device in which the blowers are installed so that the blower directions are horizontal. Instead of a blower, a commercially available general blower 1 which is relatively inexpensive can be used to blow the rain out of the region X where the rain is not desired to fall, which is economical.
Further, it is economical because it is only necessary to install a plurality of blowers 1, 1 ... In a row.
That is, according to the rain blowing method and the rain blowing device according to the first embodiment, it is possible to effectively blow the rain out of the predetermined region in order to prevent the rain from falling into the predetermined region, which is economical. A rain blowing method and a rain blowing device can be realized.

The blowers 1, 1 ... Are preferably arranged on the same horizontal plane 1H above the region X in which rain is not desired to fall, but may be arranged so as to have a height difference.
Further, even if the blowers 1, 1 ... Are installed so that the blow directions 1F are not in the same direction but in different directions, for example, the blow directions 1F and 1F of adjacent blowers 1, 1 intersect with each other. I do not care.
Further, the blowers 1, 1 ... May be installed so that the predetermined angles θ are different from each other.

Embodiment 2
Next, a rain blow-off device to which the above-mentioned rain blow-off method is applied in order to enable concrete placing work at a concrete placing site in rainy weather will be described.
That is, in order to enable the concrete placing work in a certain area of the building under construction in the rainy weather, the above-mentioned rain blow-off device is constructed on the upper part of the column reinforcement 30 of the building under construction.
Although not shown, the column reinforcement 30 of the building under construction that is erected from the ground surface or the lower floor surface is predetermined along the four sides of the column that becomes a square column when a plurality of main bars are completed. It is a configuration in which a plurality of band bars surrounding these main bars are provided so as to be arranged at intervals of the main bars, and a plurality of band bars surrounding the main bars are provided at predetermined intervals along the extension direction of the main bars.

As the rain blow-off device of the second embodiment, for example, as shown in FIG. 3, four pillars arranged so that the area X in which the rain does not want to fall is located at the four corners of the quadrangle when viewed from directly above. In the case of the concrete casting planned area below the area surrounded by the reinforcing bars 30, one side of the quadrangle is formed across the upper ends 30t and 30t of the two column reinforcing bars 30 and 30 adjacent to each other. As described above, the blower group 1A described above is installed.
According to the rain blow-off device according to the second embodiment, it is possible to prevent rain from falling on the concrete placement area below the area surrounded by the four column reinforcements 30, 30 ... It will be possible to perform concrete casting work in the planned casting area. That is, it is possible to prevent rain from being mixed into the concrete, and it is possible to perform the concrete placing work without deteriorating the performance of the concrete.

Embodiment 3
As a more specific rain blow-off device constructed on the upper part of the column reinforcement 30 of the building under construction, for example, as shown in FIGS. 4 and 5, a plurality of devices erected from the ground surface A or the lower floor surface. A rain blow-off device for performing concrete placing work in rainy weather in a floor area of 3 spans in the beam-to-beam direction and 2 spans in the girder row direction surrounded by column reinforcements 30, 30 ... will be described.
The span is the distance between the column cores of the columns 30 and 30 that are adjacent to each other. In the case of 3 spans in the beam-to-beam direction and 2 spans in the girder direction, the column arrangement is provided so that three column reinforcements 30 are lined up at equal intervals along the girder direction D (long side direction of the building) of the building when viewed from directly above. The structure is such that four rows of streaks are provided at equal intervals along the direction E between the columns of the building (direction of the short side of the building). Hereinafter, when the position of the column bar arrangement 30 is specified, the column bar arrangement 30A shown in FIG. 4 is used as a reference, and the column reinforcement 30 is specified as the column direction ○ column and the beam-to-beam direction ○ column.

That is, in the rain blow-off device of the third embodiment, as shown in FIG. 4, four column reinforcing bars 30 are installed in the beam-to-beam direction E of the building at predetermined intervals, and the column reinforcing bars 30 are installed in the girder row of the building. Three columns arranged along the girder direction D located in the second column of the beam-to-beam direction E in the planned concrete placement area configured by installing three columns in the direction D at predetermined intervals. 30 (that is, column reinforcement 30B located in the column E2 in the girder direction D1 column, column reinforcement 30D located in the column E2 in the column direction D2, column E2 in the column D3 in the girder direction It is provided along the girder direction D so as to straddle the upper part of the column reinforcement 30F) located at the above, so that the ventilation direction 1F faces upward toward one end side of the inter-beam direction E (the first column side of the inter-beam direction E). Blower group 1A1 (1A) installed in the column and three column reinforcements 30 (that is, girder direction D1 column inter-beam direction E3) located along the girder direction D located in the third column of the beam-to-beam direction E. It straddles the upper part of the column reinforcement 30G located in the column, the column reinforcement 30I located in the column direction D2 column inter-beam direction E3 column, and the column reinforcement 30K located in the column direction D3 column beam-to-beam direction E3 column). With the blower group 1A2 (1A) provided along the girder direction D so that the blower direction 1F faces upward toward the other end side of the inter-column direction E (the fourth row side of the inter-column direction E). , Three column reinforcements 30 located along the girder direction D located in the second column of the inter-beam direction E and 3 located along the girder direction D located in the third column of the inter-beam direction E. It is provided along the girder direction D above the intermediate position between the columns and the columns of the book so that the ventilation direction 1F faces upward toward one end side of the inter-beam direction E (the first column side of the inter-beam direction E). The blower group 1A3 (1A) installed in the column, the three column reinforcements 30 located along the girder direction D located in the second column of the beam-to-beam direction E, and the third column of the beam-to-beam direction E. It is provided along the girder direction D above the intermediate position between the three column reinforcements 30 located along the girder direction D, and the ventilation direction 1F is the other end side of the beam-to-beam direction E (beam-to-beam direction E). The configuration is provided with a blower group 1A4 (1A) installed so as to face upward toward the fourth row side of the above.
A plurality of support plates 31 straddling the upper surface of the installation portion 1C of the blower group 1A1 and the upper surface of the installation portion 1C of the blower group 1A2 are installed at predetermined intervals along the girder direction D, and these plurality of support plates are installed. The blower group 1A3 and the blower group 1A4 are installed so as to extend along the girder direction D on the upper surface of the intermediate position of 31, 31 ...
According to the rain blow-off device according to the third embodiment, as shown in FIG. 5, the rain is blown off to one end side of the beam-to-beam direction E (the first row side of the beam-to-beam direction E) by the wind blown from the blower groups 1A1 and 1A3. In addition, the wind blown from the blower groups 1A2 and 1A4 can blow rain to the other end side of the beam-to-beam direction E (the fourth row side of the beam-to-beam direction E). In the planned concrete placement area, which is composed of four pillar reinforcements 30 installed at predetermined intervals in the beam-to-beam direction E and three pillar reinforcements 30 installed at predetermined intervals in the girder direction D of the building. It is possible to prevent the concrete from falling, and it is possible to perform the concrete placing work in the concrete placing planned area in the rainy weather. That is, it is possible to prevent rain from being mixed into the concrete, and it is possible to perform the concrete placing work without deteriorating the performance of the concrete. Further, in rainy weather, the work of placing concrete on the lower side of the column reinforcement 30 can be performed in a wide range, and the delay in the construction period due to rainy weather can be suppressed.

In the above, as an example, the rain blow-off device for performing concrete placing work in the floor area for 3 spans in the beam-to-beam direction and 2 spans in the girder direction in rainy weather has been described. Two or more reinforcing bars 30 are installed in the beam-to-beam direction E of the building at a predetermined interval, and two or more column reinforcing bars 30 are installed in the girder direction D of the building at a predetermined interval. It is possible to correspond to the concrete casting planned area where the bars 30 are provided in a row.
That is, in the rain blow-off device of the third embodiment, two or more column reinforcing bars 30 are installed in one direction of the building at a predetermined interval, and the column reinforcing bars 30 are spaced in the other direction of the building at a predetermined interval. In the planned concrete placement area where the column reinforcements 30 are provided in a matrix by installing two or more columns, a plurality of column reinforcements located along the other direction located in the second row in one direction. A plurality of blowers 1, 1 ... Provided along the other direction so as to straddle the upper part and so that the blow direction 1F faces upward toward the first row in one direction, and the third row in one direction. It is provided along the other direction so as to straddle the upper part of a plurality of column reinforcements located along the other direction, and is installed so that the ventilation direction 1F faces upward toward the fourth row in one direction. Multiple blowers 1, 1 ..., Multiple column reinforcements located along the other direction located in the second row in one direction, and positions along the other direction located in the third row in one direction. A plurality of blowers 1, which are provided along the other direction above the intermediate position between the plurality of column reinforcements and are installed so that the ventilation direction 1F faces upward toward the first row in one direction. 1 ... And a plurality of column arrangements located along the other direction located in the second row in one direction and a plurality of column arrangements located along the other direction located in the third row in one direction. A plurality of blowers 1, 1 ... Provided along the other direction above the intermediate position between the bars and installed so that the blow direction 1F faces upward toward the fourth row in one direction. It is composed.
When the above-mentioned one direction is the beam-to-beam direction E of the building (the short side direction of the building), the above-mentioned other direction is the girder direction D of the building (the long side direction of the building). On the contrary, when the above-mentioned one direction is the girder direction D of the building (the long side direction of the building), the above-mentioned other direction is the inter-beam direction E of the building (the short side direction of the building).
That is, in the rain blow-off device according to the third embodiment, two or more column reinforcing bars 30 are installed in one direction of the building at a predetermined interval, and two or more column reinforcing bars 30 are installed in the other direction of the building at a predetermined interval. By installing two or more columns, it is possible to prevent rain from falling on the planned concrete placement area corresponding to the concrete placement planned area where the column reinforcement 30 is provided in a matrix, and the concrete placement in rainy weather. It will be possible to perform concrete placing work in the planned installation area.
That is, in the rain blow-off device of the third embodiment, when one direction is the beam-to-beam direction E of the building and the other direction is the girder direction D of the building, the number of blowers 1 in the girder direction D is increased or decreased. , 3 spans in the beam-to-beam direction It is possible to prevent rain from falling on the concrete casting area of 1 span or more in the girder direction. Further, in the rain blow-off device of the third embodiment, when one direction is the girder direction D of the building and the other direction is the beam-to-beam direction E of the building, the number of blowers 1 in the beam-to-beam direction E is increased or decreased. , 3 spans in the girder direction It is possible to prevent rain from falling on the concrete casting area of 1 span or more in the inter-beam direction.

Further, the sheet 40 is placed on the outer surface of the column reinforcements 30A, 30C, 30E located on one end side of the beam-to-beam direction E and the outer surface of the column reinforcements 30H, 30J, 30L located on the other end side of the beam-to-beam direction E. It is preferable to stretch the raindrops so that the raindrops blown off to both ends in the beam-to-beam direction E do not scatter around the concrete casting site. In this case, it is preferable to use a sheet having excellent water absorption performance as the sheet 40. In the rain blow-off device described in the third embodiment, when one direction is the girder direction D of the building and the other direction is the beam-to-beam direction E of the building, the column arrangement is located on one end side of the girder direction D. A sheet 40 is stretched on the outer surface of the bar 30 and the outer surface of the column arrangement 30 located on the other end side of the girder direction D, and raindrops blown off to both ends in the girder direction are blown around the concrete casting site. It may not be scattered.

Embodiment 4
As shown in FIG. 6, in addition to the configuration of the rain blow-off device according to the third embodiment, a plurality of column reinforcements 30 and the beam-to-beam direction E located along the girder direction D located in the second column of the beam-to-beam direction E. It is provided along the girder direction D above the intermediate position between the plurality of column reinforcements 30 located along the girder direction D located in the third column of the above, so that the ventilation direction 1F faces directly upward. The blower group 1A5 (1A) installed in the above is provided. The blower group 1A5 may be installed on the upper surface of the installation portion 1C of the blower group 1A3 and the installation portion 1C of the blower group 1A4.
According to the rain blow-off device according to the fourth embodiment, the wind blown from the plurality of blowers 1, 1 ... Of the blower group 1A5 installed so that the blow direction 1F faces directly above the plurality of blowers 1, 1 ... Since the falling raindrops are crushed into small pieces and distributed to both ends of the beam-to-beam direction E, the effect of preventing rain from falling on the concrete placement planned area is further improved.
In the rain blow-off device described in the third embodiment, when one direction is the girder direction D of the building and the other direction is the inter-column direction E of the building, it is located in the second column of the girder direction D. Above the intermediate position between the plurality of column reinforcements 30 located along the beam-to-beam direction E and the plurality of column reinforcements 30 located along the beam-to-beam direction E located in the third column of the girder direction D. In the above, the configuration may include a group of blowers provided along the beam-to-beam direction so that the blower direction 1F faces directly upward.

In the embodiment, an example is shown in which the rain blow-off device to which the rain blow-off method is applied is used at the time of concrete placing work in rainy weather, but the rain blow-off device to which the rain blow-off method of the present invention is applied is provided outdoors. It can be installed in various places such as escalators, aisles, and other places to blow off rain, and it can also be used as a measure against heat stroke in the summer.

1 Blower, 1F Blower direction, 30 pillar arrangement, X Area where you do not want to drop rain.

Claims (2)

It is a rain blower equipped with multiple blowers installed so that the direction of ventilation is upward, above the area where rain does not want to fall.
The area where rain does not want to fall is the area to be placed concrete below the area surrounded by the four column reinforcements arranged so as to be located at the four corners of the quadrangle when viewed from directly above.
Rain blowing device you wherein a plurality of blowers are installed to form one side of the rectangle across between two pillars reinforcement of the upper end portion adjacent to each other. It is a rain blower equipped with multiple blowers installed so that the direction of ventilation is upward, above the area where rain does not want to fall.
Two or more column reinforcements are installed in one direction of the building at a predetermined interval, and two or more column reinforcements are installed in the other direction of the building at a predetermined interval, so that the column reinforcements are lined up. In the planned concrete placement area provided in the shape
It is provided along the other direction so as to straddle the upper part of a plurality of column reinforcements located along the other direction located in the second row in one direction, and the blowing direction is upward toward the first row in one direction. With multiple blowers installed so that
It is provided along the other direction so as to straddle the upper part of a plurality of column reinforcements located along the other direction located in the third row in one direction, and the blowing direction is upward toward the fourth row in one direction. With multiple blowers installed so that
Between a plurality of column reinforcements located along the other direction located in the second row in one direction and a plurality of column reinforcements located along the other direction located in the third row in one direction. A plurality of blowers installed along the other direction above the intermediate position of the above so that the blowing direction is upward toward the first row in one direction.
Between a plurality of column reinforcements located along the other direction located in the second row in one direction and a plurality of column reinforcements located along the other direction located in the third row in one direction. rain blowing device you characterized by comprising above the intermediate position and the other direction blowing direction is provided along the other hand toward the fourth column direction are disposed such that the upward a plurality of blower ..

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