JPH0739623Y2 - Protective net for building - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective net which surrounds the outside of a building to prevent falling objects, paint scattering, dust protection and shielding during building construction work or building renovation.

[0002]

2. Description of the Related Art Conventionally, a tent cloth sheet has been stretched around a construction site for protection and used as a protection sheet. However, such a cloth sheet has a drawback in that the sheet itself is heavy and is susceptible to wind pressure, and in particular, as a working environment in a tent cloth, a working environment with poor breathability and daylighting property is obtained. It is conceivable to use a plastic net instead of this cloth sheet, but because the plastic net has a mesh shape, it expands and contracts greatly in the direction of an angle of 45 degrees. Is not stable, so it has the drawback of being difficult to handle.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a protective net for a building which is light in weight, stable in shape to the same extent as a tent cloth, and easy to store in a facility. is there.

[0004]

The inventor of the present invention limits the stretchability of the net in the diagonal direction by the edging tape attached to the net at regular intervals in the vertical and horizontal directions, and further, at the intersection of the vertical and horizontal edging tapes, a triangle is formed. The inventor of the present invention has been made paying attention to the fact that if the shaped cloth is fixed, the stretchability of the net is considerably limited and it is easy to handle. That is, the present invention is a rectangular plastic net having edging tape attached to the periphery thereof, and by joining the edging tapes together, a desired number of sheets are connected in the vertical and horizontal directions,
The present invention provides a protective net for a building, wherein a triangular reinforcing cloth is attached to a corner portion of each net where the edging tape intersects. The present invention will be described in more detail with reference to the drawings of the embodiments.

FIG. 1 is a plan view of a unit net constituting a protective net for a building according to an embodiment of the present invention. A narrow vertical netting tape 2 and a horizontal horizontal tape 3 are attached to a rectangular plastic net sheet 1. The length and width of the unit net with edging tape is 1 to 5
The length is about m, and the lengths of both do not necessarily have to be the same.

The plastic net sheet 1 used in the present invention is made of a resin material such as polyethylene, polypropylene, polyvinyl chloride, nylon, polyester, etc., such as a monofilament, a multifilament, and a fiber material (for example, a diameter of 0). Net having a diameter of 0.5 to 3 mm), for example, by knitting with a lattice spacing of 2 to 10 mm, or by heat-sealing longitudinal and transverse fibers. In order to improve weather resistance, it is desirable to use a resin material to which an antioxidant, an ultraviolet absorber, a pigment or the like is added. The edging tape 2 and the edging tape 3 used in the present invention are plastic cloths, and the same resin material as that used for the plastic net sheet can be used as the material. The width of the tape of the present invention is, for example, 2 to 15 cm, and the grid spacing of the net sheet is 3 to 20.
Double, preferably about 5 to 10 times is desirable. If the width is too narrow, it does not contribute to the shape retention of the net. If the width is too wide, the wind pressure will increase.

The edging tape 2 or 3 of the present invention can be attached to a predetermined position of the net sheet 1 usually by sewing. When the edging tape of the present invention is sewn, the stretchability of the net can be slightly limited by fixing a part of the mesh of the lattice of the net with the edging tape. Therefore, the larger the number of net lattices that fit in the width of the edging tape, the greater the shape retaining effect, and the easier it is to handle the net sheet. In addition, the more tightly the edging tape cloth is woven and the stronger it is, the better, and the finer the stitches are, the greater the effect of fixing the shape is. In addition to sewing, the edges of the net and the edging tape can be attached by heat fusion or can be sewn and fixed after heat fusion. The edging tape is
It is desirable to fold the elongated tape in half lengthwise and fix the net by inserting the edge of the net into the fold.

In the present invention, the desired number of unit nets of FIG. 1 can be connected in the vertical and horizontal directions to form the unit net according to the size of the building. There are no particular restrictions on the method of connecting the unit nets, but as shown in FIG.
It is desirable to provide metal ring eyelets at intervals of 10 cm, and connect the eyelets with a rope made of plastic. The eyelets can be connected by using a suitable metal fitting other than the rope. Further, a right-angled triangular reinforcing cloth 4 is attached to the corner where the vertical and horizontal edging tapes intersect. The right-triangular reinforcing cloth 4 used in the present invention can be attached to a length of 10 to 50 m from the corner. The longer the length, the better the shape retention, but the larger the wind pressure.

When attaching the reinforcing cloth 4,
It is desirable to fix the mesh of the net sheet hidden by the reinforcing cloth 4 by fine sewing or fusion so as not to move from the cloth surface. Two reinforcing cloths can be polymerized from the front and back to be used. The reinforcing cloth 4 can also be made of the same material as the net and the edging tape, but a stiff reinforcing cloth is preferable, and in particular, the direction of longitudinal and lateral fibers of the reinforcing cloth 4 is 45 with respect to the mesh of the net sheet. It is desirable that it is inclined.
When the right-angled triangular reinforcing cloth 4 is attached, it can be formed for each net unit and can be connected.
When the unit nets of FIG. 1 configured in this way are connected in the vertical and horizontal directions, a large size sheet as shown in FIG. 2 is obtained. At this time, the right-angled triangular reinforcing cloth 4 at the central connecting portion looks like a square at first glance with the right-angled triangular reinforcing cloths 4 at the four corners. In FIG. 3, which is an enlarged view seen from the back side of FIG. 2, opposing eyelets of adjacent unit net sheets are connected by ropes. Also, do not provide the reinforcing cloth 4 in the shape of a right triangle in the unit net of FIG.
As a unit net attached only with the edging tape,
After connecting these, the central part of the square cloth is made into a continuous and integral square shape by combining four right-angled triangular reinforcing cloths as shown in FIG. The directions, that is, the AB direction and the AD direction, can be attached at an angle of 45 degrees with respect to the mesh of the net.

By attaching a square cloth with waist, the distance between AB, the distance between AD and BC in FIG.
The distance between them and the distance between the CDs can be restricted so as not to extend. Then, focusing on the distance between AB, BC
If the distances between AD, CD, and AD do not increase, the distance between AB does not decrease, and the shape of the square reinforcing cloth 4 is maintained accurately after all. Thus, the effect of the right-angled triangular reinforcing cloth 4 is maximized by the interaction at the intersection of the central tapes 2 and 3. Moreover, the running direction of the thread of the right-angled triangular reinforcing cloth 4 is set to 45 degrees with respect to the mesh of the net sheet 1 to limit the expansion and contraction, and further, the right-angled triangular reinforcing cloth 4 is made into a square, It is desirable to install it at the central intersection. When a square cloth is used, each unit net without a reinforcing cloth can be joined and connected and then the square reinforcing cloth can be fixed to the center. The square reinforcing cloth can be fixed by a method in which a large number of eyelets are provided on the reinforcing cloth and the eyelets 5 of the edging tape are fixed with ropes 6 or metal fittings.

Further, since the reinforcing cloth 4 having a right-angled triangular shape has less effect on the central portion of the intersection of the tapes 2 and 3, the central portion of the intersection can be cut out. As a result, in the sewing work of the central part,
Joining a three-layer laminate of a net sheet and two tapes,
The joining work can be facilitated. In the case where four reinforcing cloths 4 having a notched central portion are combined as described above, a cloth having a square or circular hole is attached to the central portion of a square. In the present invention, the tape T-shaped intersections at the upper and lower edges or the left and right side edges of the net sheet can be fitted with a double-sized triangular cloth. It is desirable from the viewpoint of strength and the effect of suppressing expansion and contraction that a square cloth is hung so as to straddle the edge of the net sheet, and the T-shaped intersecting portion is sandwiched from both sides and sewn.

[0012]

In the present invention, the deformation of the net film on the edging tape line is limited in order to prevent the net of the net covered by the edging tape from expanding and contracting in an oblique direction of 45 degrees. Therefore, the deformation of the entire net sheet can be limited. In addition, since the edging tape is arranged vertically and horizontally on the net sheet, the construction work and the net sheet storage work can be easily performed by grasping the line on which the tape is provided and handling the net sheet. Further, the unit net can be easily connected to a desired size by utilizing the edging tape. Further, the strength of the entire net sheet is also improved by the tape. Right triangle shaped reinforcing cloth 4 of the present invention
This is crossed by being fixed by 2
The angle between the tapes in the book is restricted so that it does not spread beyond 90 degrees. The phenomenon that the width does not become wider than 90 degrees means that the adjacent intersection angle does not become narrow.
After all, by providing the reinforcing cloth 4 in the shape of a right triangle at the four angles of the central tape intersection,
The angle of the individual can always maintain 90 degrees. This means that when the protective net of the present invention is applied, the tape can be precisely shaped like a grid, so that the shape is stable and the appearance of the appearance is good. Tape 1 of the present invention,
The reinforcing cloth 4 having the shape of 2 and a right-angled triangle changes the shape of the net sheet from an amorphous state into a sheet having shape stability comparable to that of a conventional tent cloth, and reinforces the strength of the net sheet. , It is possible to reduce the thickness of the mesh of the net sheet and reduce the weight of the net sheet.

[0013]

The net sheet for building protection of the present invention has a shape-retaining property substantially similar to a tent cloth due to the action of the tape and the right-angled triangular reinforcing cloth in spite of the net sheet. This is convenient when constructing and storing the protective net sheet of the present invention. Also, since the tape has a lattice shape and the orthogonality of the intersecting portions is maintained, the appearance when the tape is stretched around the building is good. Since it is a net sheet, it has good advantages of good ventilation and daylighting and a good working environment inside the protective net sheet. Further, when connecting the two sheets, the edging tapes can be easily connected to each other by, for example, sewing with eyelets or string. Moreover, since the connecting portion is not damaged, it can be used many times. Further, since it is a net, the central portion of the seat can be fixed with a string or the like of a building if necessary. This is not possible with tent cloth sheets. Since the protective net sheet of the present invention dramatically improves the strength as a sheet by the tape and the right-angled triangular reinforcing cloth, the net sheet can be made lighter, which synergistically facilitates the handling of the sheet. To do.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a unit net of a protective net for a building according to the present invention.

FIG. 2 is a plan view showing a state in which the same embodiment is connected.

FIG. 3 is an enlarged rear view of part of the embodiment.

FIG. 4 is a partially enlarged plan view of an example using a square reinforcing cloth.

[Explanation of symbols]

 1 Net sheet 2 Vertical tape 3 Horizontal tape 4 Reinforcing cloth 5 Eyelet 6 Rope

Claims (3)

[Scope of utility model registration request] 1. A rectangular plastic net, comprising:
By attaching the edging tape to the periphery of the edging tape, the edging tapes are joined together to connect the desired number in the vertical and horizontal directions, and a triangular reinforcing cloth is formed at the corners of each net where the edging tape intersects. A protective net for buildings characterized by being attached. 2. The protective net for a building according to claim 1, wherein the four triangular reinforcing cloths at the points where the tapes intersect are made into one square reinforcing cloth having an integrally continuous structure. 3. A large number of eyelets are provided all around the edging tape,
The protective net for a building according to claim 1 or 2, wherein the eyelets of the adjacent nets are fixed to each other with a rope or a metal jig to connect the nets.