JP3003291U - On-site spraying method frame and formwork equipment for building it - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a legal framework that has a good landscape and is advantageous in terms of strength and that prevents the occurrence of cracks. A method frame (A) is formed by an arch-shaped frame having a plurality of openings (B) consisting of a semicircular upper part (8a) and a rectangular opening (Ba) continuous with the upper part (8a).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a field spraying method frame used for slope protection work and a formwork device for building the same.

[0002]

[Prior art]

 For example, a conventional in-situ spraying method frame A1 shown in FIG. 9 is formed in a lattice shape having a plurality of rectangular openings B1, and an in-situ spraying method frame A2 shown in FIG. 10 is a rectangular shape with a plurality of cut corners. It was formed in a lattice shape having the opening B2.

[0003]

[Problems to be solved by the device]

 In the conventional on-site spraying method frames A1 and A2, the scenery is linear and monotonous in a grid pattern. The beam intersection D1 or D2 of the beams C1 and C1 or the beams C2 and C2 is sharp and weak in strength. Therefore, there is a defect that cracks are likely to occur.

It is an object of the present invention to provide an on-site spraying method frame which has a good scenery and is advantageous in strength and which prevents the occurrence of cracks, and a formwork apparatus for building the same.

[0005]

[Means for Solving the Problems]

 The in-situ spray method frame according to the present invention is formed by an arched frame having a plurality of openings having a semicircular upper portion and a rectangular lower portion continuous with the upper portion.

A formwork apparatus for constructing a field spray method frame according to the present invention comprises a semi-circular upper part, a pair of linear sheets continuous to the upper part, and a linear sheet connecting end portions of the pair of sheets, It consists of a reinforcing frame that reinforces the outside of these sheets.

Further, it is composed of an upper part of a semi-circular plate made of foamed resin and a U-shaped lower part made of corrugated cardboard continuous with the upper part.

Further, it is composed of an upper part in which a plurality of semi-circular paper tubes are stacked and a U-shaped lower part continuous with the upper part.

[0009]

[Action]

 In the present invention, the on-site spraying method frame provides a gentle landscape by the harmony of the semicircle and the rectangle, that is, the curve and the straight line.

Further, the area of the beam intersection where the stress concentrates is large, which is advantageous in strength, and since it is not a sharp edge, the occurrence of cracks is prevented.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the opening B of the in-situ spray method frame A according to the present invention is formed of a semi-circular upper portion Ba and a rectangular lower portion Bb continuous with the upper portion Ba. It is formed of an arched frame.

Therefore, the opening B is formed by a curved line and a straight line, and gives a gentle view.

Further, the area of the beam intersection D where the stress concentrates is large, which is advantageous in terms of strength, and the occurrence of cracks is prevented because it is a round edge rather than a sharp edge.

As a result, it can be suitably implemented on a steep slope.

FIG. 2 shows an example of a formwork apparatus for constructing the method frame A. The formwork apparatus, generally designated by reference numeral E, comprises a plastic flat sheet 1 and a round steel reinforcement frame 5 for reinforcing the outside of the sheet 1.

The sheet 1 is composed of a semi-circular upper portion 1a, a pair of linear sheets 1b continuous with the upper portion 1a, and a linear sheet 1c connecting the ends of the pair of sheets 1b.

3 and 4 show an assembling mode of the formwork apparatus E. As shown in FIG. The connector 3 includes a main body 10 having a hole 9 into which the bent portion 6a of the horizontal bar 6 is rotatably inserted, a small-diameter shaft portion 11 integrated with the main body 10, and a small-diameter shaft portion 11 thereof. It is composed of a retaining expansion portion 12 integrated with a small-diameter shaft portion 11, and is entirely made of a material such as synthetic resin, wood, or concrete that does not substantially cause rust. The small-diameter shaft portion 11 of the connecting tool 3 is inserted into the hole 13 formed in the seat, and the small-diameter shaft portion 11 protruding from the hole 13 is engaged with a fixing tool indicated by 4 as a whole to connect the connecting tool 3 and the seat 1. To fix.

The fixture 4 has a side surface shape that is bent so as to have an arc portion 14 and then a vertical portion 15. The lower portion of the vertical portion 15 is engaged with the small diameter shaft portion 11 of the connector 3. A notch 16 is formed. Further, the end of the arc portion 14 is slightly bent to facilitate the insertion of the reinforcing frame 5. Reference numeral 7 in the figure is a vertical reinforcing bar.

FIG. 5 shows another embodiment of the formwork apparatus. This formwork apparatus E1 is constituted by connecting a semi-circular plate 20 made of expanded polystyrene and a U-shaped corrugated paperboard 21. This embodiment also has the same effects as the embodiment of FIG.

The semi-circular plate 20 may be thinned out like the semi-circular plate 20a shown in FIG. 6, or as shown in FIG. 7, a pair of quarter-arc plates 20b may be combined. .

FIG. 8 also shows another embodiment of the formwork apparatus. This formwork apparatus E2 is constructed by stacking a plurality of semi-circular paper tubes 22 and connecting U-shaped corrugated paper 21. ing.

This embodiment also has the same effects as the embodiment of FIG.

[0024]

[Effect of device]

 Since the present invention is configured as described above, it has a good view, is advantageous in strength, and can prevent the occurrence of cracks.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a field spraying method frame of the present invention.

FIG. 2 is a front view showing an embodiment of the formwork apparatus of the present invention.

FIG. 3 is a perspective view illustrating an assembly mode of FIG.

FIG. 4 is a vertical cross-sectional view of a part of FIG.

FIG. 5 is a front view showing another embodiment of the formwork apparatus.

6 is a front view showing another embodiment of the semi-circular plate of FIG.

FIG. 7 is a front view showing another embodiment of the semi-circular plate of FIG.

FIG. 8 is a front view showing another embodiment of the formwork apparatus.

FIG. 9 is a front view showing an example of a conventional field spraying method frame.

FIG. 10 is a front view showing another example of a conventional field spraying method frame.

[Explanation of symbols]

 A, A1, A2 ... On-site spraying method frame B, B1, B2 ... Openings C1, C2 ... Beams D, D1, D2 ... Beam intersections E, E1, E2 ... Formwork Device 1 ... Sheet 3 ... Connecting tool 4 ... Fixing tool 5 ... Reinforcing frame 6 ... Horizontal reinforcing bar 6a ... Bending part 7 ... Vertical reinforcing bar 9 ... Hole 10. ..Main body 11 ... Small-diameter shaft portion 12 ... Deviation prevention expansion portion 13 ... Hole 14 ... Arc portion 15 ... Vertical portion 16 ... Notch

Claims (4)

[Scope of utility model registration request] 1. A field spraying method frame, which is formed by an arched frame having a plurality of openings each having a semicircular upper portion and a rectangular lower portion continuous with the upper portion. 2. A semi-arcuate upper part, a pair of linear sheets continuous to the upper part, linear sheets connecting the ends of the pair of sheets, and a reinforcing frame for reinforcing the outside of these sheets. Formwork device for building on-site spraying method frame characterized by. 3. A formwork apparatus for constructing an on-site spraying method frame, comprising an upper part of a foamed resin semi-circular plate and a U-shaped lower part made of corrugated cardboard continuous with the upper part. 4. A formwork apparatus for constructing a site spraying method frame, comprising an upper part in which a plurality of semi-circular paper tubes are stacked and a U-shaped lower part continuous to the upper part.