JP6139914B2 - Flooring prevention device - Google Patents

Description

  The present invention relates to an apparatus for preventing a floor material laid on a floor (outdoor floor) such as a veranda or a balcony projecting outside from an outer wall of a building from being blown by wind.

  In consideration of its appearance and convenience, floor materials covering all or part of the floor surface may be laid on the outdoor floor of a building such as an apartment house. However, the flooring material laid on the outdoor floor may be swept up by strong winds or may be scattered outside the outdoor floor. Conventionally, the following proposals have been made for preventing or preventing flooring caused by wind.

  That is, the side of the flooring is covered with a plate, thereby preventing the wind from entering the flooring (see Patent Document 1 below), and the flooring is connected to the wall of the building with a rope (see Patent Document 2 below). In addition, proposals have been made such as providing vents for passing air on the front and back surfaces of the flooring (see Patent Document 3 below).

  By the way, all of these proposals are directed to processing the flooring itself. However, this has the disadvantage of limiting the design or design development or selection applicable to the flooring.

JP-A-11-343722 JP 2001-349042 A JP 11-210207 A

  Therefore, the present invention is to provide a floor material rolling-up prevention device that does not require processing the floor material itself laid on the outdoor floor.

The present invention relates to an apparatus for preventing a floor material laid on a floor (outdoor floor) extending outside from an outer wall of a building from being blown by wind, and includes a windshield member for the floor material. The windshield member is composed of an upright flat plate that rises vertically from the floor or a plate member having an L-shaped cross-sectional shape that rises from the floor and then bends indoors, and is at least a height position of the surface of the floor material upward from the floor It is located at a place spaced from the flooring to the outdoor side.

  According to the present invention, since the windshield member extends upward from the outdoor floor to at least a height position of the surface of the floor material, direct hit of the wind against the floor material is avoided, whereby the floor material is caused by the wind. The magnitude of the negative pressure and the positive pressure acting on the front surface and the back surface of the floor, respectively, can be reduced, whereby the magnitude of the lift acting on the flooring can be reduced. Further, when the wind gets over the windshield member, the highest negative pressure state is reached on the windshield member, and the space provided between the floor material and the windshield member is the maximum negative pressure wind. This contributes to avoiding the action on the flooring. In addition, the wind acts on the floor material as a whole against the floor material spaced from the windshield member to the leeward side, thereby pressing the floor material against the floor surface. Therefore, in the present invention, it is not necessary to process the floor material in order to prevent the floor material from being rolled up by wind.

The windshield member may be attached to a drainage groove provided on the outdoor floor or a side surface of the floor according to a size of a floor material laid on the outdoor floor.

It is a side view which shows an example of the windshield member attached to the drain groove of the outdoor floor. It is a side view which shows another example of the windshield member attached to the drain groove of the outdoor floor. It is a side view which shows an example of the windshield member attached to the drain groove of the outdoor floor in another aspect. It is a side view which shows another example of the windshield member attached to the drain groove of the outdoor floor in another aspect. It is a side view which shows an example of the windshield member attached to the side surface of an outdoor floor. It is a side view which shows another example of the windshield member attached to the side surface of an outdoor floor. It is the side view of the flooring material in the case where the windshield member used for the wind tunnel experiment does not exist. It is a side view of the windshield member and floor material which were used for the wind tunnel experiment. It is a top view of the flooring shown in FIG.7 and FIG.8. (A) And (b) shows the numerical value and graph which respectively show the result of the wind tunnel experiment performed about the case where the windshield member shown in FIG. 7 does not exist. (A) And (b) shows the numerical value and graph which respectively show the result of the wind tunnel experiment performed about the case where the windshield member shown in FIG. 8 exists. (A), (b), and (c) are respectively a side view, a plan view, and an obtained wind pressure coefficient distribution diagram showing an example of a windshield member used to obtain a wind pressure coefficient distribution diagram by computer simulation. is there. (A), (b), and (c) are respectively a side view, a plan view, and an obtained wind pressure coefficient distribution showing another example of a windshield member used to obtain a wind pressure coefficient distribution chart by computer simulation. FIG.

  Referring to FIG. 1, a part of a floor (outdoor floor) 10 such as a veranda or balcony provided in a building (not shown) such as an apartment house and projecting outside from an outer wall (not shown) of the building is shown. It is shown. The outdoor floor 10 has a floor surface 12 and a side surface 13 connected to the floor surface and facing the outdoors. On the floor surface 12 of the outdoor floor 10, a handrail 14 (indicated by a two-dot chain line for simplification of the drawing) that extends parallel to the outer wall of the building along the side surface 13 and a drain groove that opens to the floor surface 12. 16 are provided.

  The outdoor floor 10 is provided with a device 18 for preventing an arbitrary floor material laid on the floor surface 12 from drowning upon receiving the wind W blown toward the outer wall of the building.

  An example of the flooring is shown in FIGS. The illustrated flooring 20 includes a plate-shaped main body 22 having a rectangular planar shape, and a plurality of flat seats 24 that support the main body on the floor surface 12. In the illustrated example, the flooring 20 is arranged on the floor 12 so that the side surface 25 of the main body 22 defining the long side of the rectangle extends in parallel with the outer wall of the building.

  The roll-up prevention device 18 includes a windshield member 26 attached to the outdoor floor 10. The windshield member 26 is spaced a distance d from the floor material 20 to the outdoor side (hence, on the windward side of the floor material 20), and the surface 27 of the floor material 20 on the floor surface 12 upward from the outdoor floor 10. And a height dimension h extending to the height position.

  The windshield member 26 is placed on the wind of the floor material 20, and the height dimension h is set equal to the distance from the floor surface 12, which is the installation surface of the windshield member 26, to the surface 27 of the floor material 20. By setting, the windshield member 26 exhibits a windshield function for the flooring 20 and prevents or mitigates the direct hit of the wind W against the flooring 20. As a result, the magnitude of the negative pressure and the positive pressure acting on the front and back surfaces of the flooring 20 due to the wind W is reduced, and thereby the magnitude of the lift acting on the flooring 20 is reduced. The height dimension h does not prevent the height dimension h from being set to a value larger than the distance value from the installation surface of the windshield member 26 to the surface 27 of the flooring 20.

  Further, when the wind W gets over the windshield member 26, the wind W has the highest negative pressure on the windshield member. The distance d provided between the floor material 20 and the windshield member 26 contributes to avoiding the action of the maximum negative pressure wind W on the floor material 20. Moreover, the wind W is shown by FIG. 11 (a) and FIG.11 (b) which show the result obtained from the wind-tunnel experiment with respect to the flooring 20 which was spaced from the windshield member 26 to the leeward space | interval d. As a whole, the floor material 20 is pressed against the floor surface 12. The value of the distance d can be determined in consideration of the shape, size, etc. of the outdoor floor 10, the shape, size, weight, etc. of the flooring 20.

  As shown in the illustrated example, the windshield member 26 has the same length dimension as the length dimension in the extending direction of the side face 25 of the flooring 20 (the paper back direction in FIG. 1), and the entire length of the flooring 20 What consists of one member facing the full length of the side surface 25 is the most preferable. However, although the windshield member 26 is inferior to the illustrated example in the effect of preventing the floor material 20 from rolling up, it is composed of a plurality of intermittent members or one member shorter than the total length of the side surface 25 of the floor material 20. Does not prevent you from doing.

  The windshield member 26 is made of, for example, a plate having an L-shaped cross-sectional shape that rises from the outdoor floor 10, more specifically, the floor 12 and then bends indoors, as shown in FIGS. As shown in FIG. 2, FIG. 4, and FIG. 6, it can be composed of an upright flat plate that rises vertically from the floor surface. In addition to the illustrated example, the windshield member 26 may be made of a plate material having a cross-sectional shape such as an H shape, an I shape, or a C shape, or a rod material having a rectangular cross-sectional shape. it can.

The windshield member 26 having an L-shaped cross-sectional shape shown in FIGS. 1, 3 and 5 is disposed in the drainage groove 16 in the example shown in FIGS. 1 and 3, and in the example shown in FIG. 13 is arranged. The windshield member 26 having an L-shaped cross section has a vertical plate portion 28 rising from the floor surface 12 and a horizontal plate portion 30 extending horizontally from the vertical plate portion to the indoor side. Here, the vertical plate portion 28 extends upward from the bottom surface 32 of the drainage groove 16 forming a part of the floor surface 12 in the example shown in FIGS. 1 and 3, and a part of the floor surface 12 in the example shown in FIG. 5. Is extended upward from the outdoor side tip of the outdoor floor 10 (more specifically, the intersection of the floor surface 12 and the side surface 13). Further, the distance d is defined between the front end of the horizontal plate portion 30 extending toward the floor material 20 and the floor material 20.

The windshield member 26 shown in FIG. 1 has a plate portion 34 having an L-shaped cross section that is continuous with the lower end of the vertical plate portion 28. The windshield member 26 is tightly fitted to the drainage groove 16 at a part of the vertical plate portion 28 and the L-shaped plate portion 34, thereby being attached to the outdoor floor 10.

  The windshield member 26 shown in FIG. 3 has a plate portion 36 having an L-shaped cross section that is connected to the vertical plate portion 28 at approximately the middle in the length direction. The windshield member 26 is attached to the outdoor floor 10 by gripping a part of the outdoor floor 10 (a portion between the side surface 12 and the side wall of the drainage groove 16) by a part of the vertical plate portion 28 and the L-shaped plate portion 36. It is attached.

The windshield member 26 shown in FIG. 5 has an inverted U-shaped plate portion 38 that is continuous with one end of the vertical plate portion 28. The windshield member 26 is attached to the outdoor floor 10 by gripping the side wall 13 and the side surface 13 of the drainage groove 16 by the plate portion 38.

  Further, the upright flat plate forming the windshield member 26 shown in FIGS. 2, 4 and 6, respectively, is obtained by removing the horizontal plate portion 30 from the mountain-shaped windshield member 26 shown in FIGS. The structure is the same as that of the plate member 28, and the mounting structure of the flat plate to the outdoor floor 10 is the same as in the examples shown in FIGS. 1, 3, and 5. Therefore, about the example shown in FIG.2, FIG4 and FIG.6, the code | symbol same as the code | symbol attached | subjected to FIG.1, FIG.3 and FIG.5 is respectively attached | subjected, and the detailed description is abbreviate | omitted.

  Next, in order to confirm the technical effect of the present invention, wind tunnel experiments were conducted for the case where the windshield member 26 was not provided (FIG. 7) and the case where the windshield member 26 was provided (FIG. 8).

  The windshield member 26 used in the both wind tunnel experiments is made of a bar having a rectangular cross section. Moreover, the flooring 20 used for the both wind tunnel experiments has a rectangular planar shape (width 1,260 mm × length 1,876 mm) as a whole (see FIG. 9). The flooring 20 has a plurality of narrow (120 mm) plates 50 which are arranged in contact with each other to define the front and back surfaces thereof, a joist 51 which defines two long sides of the four sides, and one short plate. It has a curtain plate 52 that defines the side surface, and a flat rubber seat 54 disposed on the lower surface of each joist 51. The remaining short side surface 56 of the flooring 20 is open toward an air source (not shown) that emits the wind W. The windshield member 26 has the same length dimension as the short side surface 56 of the flooring 20, and faces the side surface 56 with an interval of 1000 mm. Further, the height position of the top surface of the windshield member 26 is the same as the height position of the surface of the flooring 20 (a distance of 85 mm upward from these installation surfaces E).

  Referring to FIG. 9, a pair of sensors 58 for measuring wind pressure on the surface of the flooring 20 and, more specifically, the front and back surfaces of each of the plurality of plates 50 (a total of 16 pairs indicated by dots). Sensor 58) is arranged. In order to indicate the arrangement positions of these sensors 58, numerals 1 to 16 enclosed in parentheses are attached.

  FIG. 10A and FIG. 10B show the results of the wind tunnel experiment in the case where the windshield member 26 is not provided, with numerical values and graphs, respectively. On the other hand, in FIG. 11A and FIG. 11B, the results of the wind tunnel experiment in the case where the windshield member 26 is provided are shown by numerical values and graphs, respectively. As a result of the wind tunnel experiment, an external pressure coefficient (wind pressure coefficient acting on the surface of the flooring 20), an internal pressure coefficient (wind pressure coefficient acting on the back surface of the flooring 20, that is, the back surface of the plate 50), and a wind force coefficient (external pressure coefficient−internal pressure coefficient). ). The 16 plots for each coefficient on each graph correspond to the position (1 to 16) of the sensor 58, that is, the measurement point.

  According to the result of the wind tunnel experiment, when there is no windshield member 26, the wind force coefficient takes a negative value at all the measurement points 1 to 16. This indicates that lift is acting on the flooring 20. On the other hand, when the windshield member 26 exists, the wind force coefficient shows a positive value in most of the measurement points 1 to 16. This indicates that the force acting on the flooring 20 is superior to the pressing force toward the floor rather than the lift.

  Next, when the wind W is blown from the left side in the figure on the windshield member 26 having the shape shown in FIG. 1 (L-shaped cross section), it is obtained (FIGS. 12A and 12B). When the wind W is blown from the left side in the figure against the wind pressure distribution diagram by computer simulation and the windshield member 26 having the shape (upright flat plate shape) shown in FIG. 2 (FIGS. 13A and 13) FIG. 12 (c) and FIG. 13 (c) show the wind pressure distribution diagrams obtained by computer simulation obtained in (b)), respectively.

  The height dimension of the windshield member 26 having an L-shaped cross section and the windshield member 26 made of an upright flat plate set in the computer simulation is 100 mm as shown in FIGS. 12 (a) and 13 (a), respectively. The length dimension is 1,000 mm as shown in FIGS. 12 (b) and 13 (b), respectively. Wind pressure measurement points for creating the wind pressure distribution map are on alternate long and short dash lines shown in FIGS. 12 (b) and 13 (b), respectively.

  According to the wind force distribution diagrams shown in FIGS. 12C and 13C, it can be seen that the windshield member 26 formed of an upright flat plate exhibits substantially the same wind force distribution as the windshield member 26 having an L-shaped cross section.

10 floors (outdoor floor)
16 Drainage groove 18 Raise prevention device 20 Floor material 26 Windshield member 27 Surface of floor material

Claims (4)

A device for preventing the floor material laid out on the floor projecting from the outer wall of the building from blowing up by the wind,
Including a windshield member attached to the floor;
The windshield member is composed of an upright flat plate that stands vertically from the floor , extends upward from the floor to at least a height position of the surface of the floor material, and is located at a position spaced from the floor material to the outdoor side. The anti-swelling device. A device for preventing the floor material laid out on the floor projecting from the outer wall of the building from blowing up by the wind,
Including a windshield member attached to the floor;
The windshield member Ri Do a plate member having a cross-sectional shape of the L-shaped bent rising then the indoor side from the floor, extending from the floor to a height position of the surface of at least the flooring upwardly, also from the flooring A device to prevent drooping , located at a distance from the outdoor side .   The said windshield member is attached to the drain ditch provided in the said floor, The drooling prevention apparatus of Claim 1 or 2   The apparatus according to claim 1 or 2, wherein the windshield member is attached to a side surface of the floor.

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