JP3011096U - Spraying method frame material - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a high-strength spray frame material with a reduced number of reinforcing members and steps and a reduced number of steps for providing a bending function. [Structure] When molding using a wood fiber-based molding mat mixed with resin powder, it is sandwiched between the mold surfaces of a thermoforming mold having a pair or a plurality of pairs of concave grooves, and thermoformed, and a spraying method frame material 1
To form. The non-bending portion 1a corresponding to the mold surface other than the groove is formed in a rigid plate shape, and the bending portion 1b corresponding to the groove is formed in one or a plurality of flexible strips. [Effect] Since it is foldable, it is convenient for transportation and handling, and the cost can be reduced from this point as well.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spraying method frame material which is a formwork material for building a method frame formed by spraying concrete to protect a slope.

[0002]

[Prior art]

 Conventionally, as a blowing method frame material, there has been a method frame material in which a base plate of a reinforced water-resistant corrugated board as a base material is cut into an elongated rectangular shape having a cutout portion and a hole, and a bending function is added at the same time as the shape cutting. These rectangular method frame materials were bent and connected, and used as the formwork for the method frame construction.

On the other hand, as a requirement for the frame material for the spraying method, there is a case where the shape of the concrete that has been sprayed is retained until it hardens. However, since this requirement is satisfied, durability against concrete spraying is increased. It was required to secure the shape and maintain the shape against absorption of water.

[0004]

[Problems to be solved by the device]

 However, the reinforced water-resistant corrugated cardboard currently used has not yet reached the performance that can satisfy these functions, and various measures are needed to supplement it. For example, when assembling the spray method frame material, a U-shaped rod-shaped reinforcing metal member is reinforced at the upper end of the method frame material to provide rigidity. In addition, many fasteners are used on the sides of the legal frame material. For this reason, it took a lot of man-hours and time to assemble them. In addition, since many reinforcing members are used, the cost becomes high. In addition, hinges were used as means to add the function of bending the frame material, and folds were added as bending lines, but this required more man-hours.

The present invention has been made in order to improve the above-mentioned drawbacks, and provides a blowing method frame material having a large rigidity in which a reinforcing member and a reinforcing process are reduced and a process for providing a bending function is also reduced. The purpose is to

[0006]

[Means for Solving the Problems]

 The spray method frame material of the present invention is a form material for constructing a method frame for protecting slopes, and when molding using a wood fiber type molding mat mixed with resin powder, a pair or It is sandwiched between both mold surfaces of a mold that has multiple pairs of concave grooves, and the non-folded parts corresponding to the mold surfaces other than the concave grooves are formed into a rigid plate shape, and the bending corresponding to the concave grooves is performed. The part is a spray method frame member formed in one or more flexible strips.

Further, the spray method frame material of the present invention is a form material for constructing a method frame for protecting slopes, and a wood fiber type molding mat mixed with resin powder and a non-woven fabric are laminated. In molding, one or more sharp ridges with sharp tips are sandwiched between both mold surfaces of the mold provided on the mold mat side mold surface, and the unfolded parts corresponding to the mold surfaces other than the above ridges are The spray frame material is formed in a rigid plate shape, and the bent portion corresponding to the ridge is formed of only a nonwoven fabric or in a plurality of linear shapes.

[0008]

[Action]

 In the blowing method frame material with the above configuration, by providing a concave groove in the molding die, when molding, the part corresponding to the concave groove becomes a strip-shaped bent part without applying pressure, and it is flexible and bent. Is formed to make it easier. The other part is strongly compressed and is formed into a plate shape with significantly higher rigidity than cardboard.

Further, in a spray method frame material in which a molding mat in which non-woven fabrics are overlapped is formed by a molding die in which a sharp ridge is formed on one mold surface, when molding, a portion corresponding to the ridge is formed. Only the mat is cut, but the non-woven fabric is connected, and this part is a linear bending part made of non-woven fabric. The other part is formed into a plate that is strongly compressed and has rigidity.

In any case, whether the molding die is provided with a concave groove or has a ridge with a sharp tip, the spray method frame material is assembled as a mold by connecting the ends to each other. To be In the on-site assembly work for constructing the method frame by using the formwork thus formed, it is possible to reduce the reinforcing member and the reinforcing process, and also to omit the folding process.

[0011]

【Example】

 A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a first embodiment of a spray method frame material of the present invention. By thermoforming, a plate-shaped non-bending portion (1a) having rigidity and a flexible bending portion (1b) having a folding function are formed simultaneously with forming, and shape cutting is also performed at the same time, so that the spray method frame material ( 1) is formed.

FIG. 2 is an explanatory cross-sectional view before molding in which a wood fiber molding mat (4) mixed with resin powder is set between the upper mold (2) and the lower mold (3). A concave groove (5) having a constant width is provided at a position corresponding to each of the mold surfaces of the upper mold (2) and the lower mold (3) in order to form the bent portion (1b). By molding with such a mold, the non-bent portion (1a) and the folded portion (1b) are formed.

The width of the concave groove (5) is related to the bending angle of the bent portion (1b) to be formed, and the optimum groove width is selected in advance.

The non-bent portion (1a) may be formed as a flat and uniform flat plate, or a bead shape may be partially formed to reinforce it. Therefore, the upper die (2) and the lower die (3) may be changed in shape. In addition, for the purpose of reinforcement, a reinforcing material may be inserted into a molding mat before molding, or may be molded by partially increasing the basis weight.

Further, since the bent portion (1b) having a bending function has a rough surface, it may be difficult to release the mold when peeling the spray method frame material after concrete spraying. In order to solve the problem, there is a case where a member having a releasing function, fitting to a shape, and capable of responding to a shape change is attached to a portion including the bent portion (1b) at the same time as molding. As the material of this member, for example, non-woven fabric, paper, film, aluminum foil, zinc steel plate having a plate thickness of about 0.3 mm, etc. may be used.

A second embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is a partial perspective view of a second embodiment of the spray method frame material of the present invention. By thermoforming, a rigid plate-shaped non-bending portion (11a) and a bending portion (11b) are simultaneously formed, and shape cutting is also performed at the same time to form the spraying method frame material (11).

FIG. 4 shows a set in which a nonwoven fabric (14a) is superposed on a wood fiber type molding mat (14) mixed with resin powder between the upper mold (12) and the lower mold (13). FIG. 3 is an explanatory cross-sectional view of the formed product before forming. The lower die (13) is provided with a ridge (15) having a sharp tip in order to form a bent portion (11b). When tightened with the upper mold (12) and the lower mold (13), the pressed molding mat is cut by the ridges (15), and the parts are connected by a single piece of nonwoven fabric (14a). Therefore, the bent portion (11b) has a bending function.

The ridges (15) cut only the molding mat (14) and not the nonwoven fabric (14a), the distance between the upper mold (12) and the lower mold (13), and the ridges (15). Various conditions such as the size and shape of the resin, the thickness of the molding mat (14) and the thickness of the nonwoven fabric (14a) are adjusted in advance.

A rigid plate-shaped non-bending portion (11a) is strongly compressed and formed over the entire portion other than the bending portion (11b). The non-woven fabric (14a) is attached by pressing, but the range of the non-woven fabric (14a) to be attached may be a narrow area near the bent portion (11b) or a wide area covering the whole, and thus workability is improved. And cost are taken into consideration.

The ridges (15) may be provided on the upper mold (12). In that case, the nonwoven fabric (14a) is overlaid on the lower mold side.

[0021]

[Effect of device]

 According to this invention, the plate-shaped non-bending portion having significantly higher rigidity than the corrugated board and the bending portion having the bending function are formed by the simultaneous molding, so that the forming time can be shortened and the reinforcing member and the reinforcing process can be performed. It can be reduced and the cost can be greatly reduced. Also, since it is foldable, it is convenient in terms of transportation and handling, and in this respect, it also has extremely beneficial effects such as cost reduction.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention.

FIG. 2 is an explanatory sectional view of a molding die and materials showing a state before molding of the first embodiment of the present invention.

FIG. 3 is a partial perspective view showing a second embodiment of the present invention.

FIG. 4 is an explanatory sectional view of a molding die and materials showing a state before molding of a second embodiment of the present invention.

[Explanation of symbols]

 1 Spraying method frame material 1a Non-bending portion 1b Bending portion 2 Upper die 3 Lower die 4 Molding mat 5 Recessed groove 11 Spraying method frame material 11a Unfolding portion 11b Bending portion 12 Upper die 13 Lower die 14 Molding mat 14a Nonwoven fabric 15 Sharp ridges

Claims (2)

[Scope of utility model registration request] 1. A formwork material for constructing a slope protection frame, wherein one or a plurality of pairs of recessed grooves are used for molding using a wood fiber type molding mat mixed with resin powder. It is sandwiched between the two mold surfaces of the molding die having, and the non-bending portion corresponding to the die surface other than the concave groove is formed into a plate having rigidity, and the bending portion corresponding to the concave groove is one or more flexible. A spray method frame material characterized by being formed in a thin strip shape. 2. A mold material for constructing a slope protection frame, wherein one or a plurality of mold materials are used to form a laminate of a wood fiber type molding mat mixed with resin powder and a non-woven fabric. The sharp ridge at the tip of is sandwiched between both mold surfaces of the molding die provided on the mold surface on the molding mat side, and the non-folded portion corresponding to the mold surface other than the ridge is formed in a plate shape having rigidity, The frame material for spraying method, wherein the bent portion corresponding to the ridge is formed in one or a plurality of linear shapes only of non-woven fabric.