JPH0743175Y2 - Formwork for legal frame molding - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method frame forming mold for molding a field casting method frame for slope protection work.

[0002]

2. Description of the Related Art With regard to such a formwork, the applicant of the present invention has been published in Japanese Patent Publication
In Japanese Patent Laid-Open No. 23869/1990, a form unit is proposed, and FIG. 2 shows a form forming mold for forming a frame indicated by reference numeral A1 as a whole obtained by connecting the form units 1. . The mold frame unit 1 includes a pair of paper molds 2 and 2 whose both edges 2a and 2a are freely bendable, and a pair of paper molds 2 and 2 which are bent.
A plurality of paper molds 2 are arranged at predetermined intervals between the both ends.
From the reinforcing bar 3 pivotally attached to the inside of the box, and the removable connecting bar 4 for connecting the reinforcing bar 3 in a space-like manner and fixing the pair of paper form frames 2 and 2 in a spaced state. It is configured.
The edge 2a of the paper frame 2 of the frame unit 1 is sequentially connected, the cross-shaped portion is connected by the connecting device 5, and the cross-shaped connecting fitting 6 is disposed inside. Then, concrete or mortar is placed inside the form A1 by means such as spraying to form a method frame.

When concrete is poured into a mold for forming a legal frame such as the above-mentioned mold A1, concrete having a large slump value, that is, a large fluidity is used in order to improve the workability of casting. There is a problem that overflows from the formwork. Further, Japanese Patent Application Laid-Open No. 2-8417 discloses a technique of preventing deformation by surrounding the molds forming the both side surfaces and the top surface with members for holding a fixed shape at intervals.
However, such a known technique is troublesome to assemble the fixed-form holding device on site. Further, Japanese Patent Laid-Open No. 4-1325 discloses a lid that covers the opening of the cross-shaped portion, but it cannot prevent concrete from overflowing from the pair of mold portions.

[0004]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method frame molding formwork capable of installing a lid on the site by a simple operation and preventing deformation.

[0005]

According to the present invention, a pair of molds (2, 2) spaced apart and fixed to a slope and a reinforcing bar (3) connecting the molds to each other are provided. In a formwork for forming a method frame in which a formwork unit (1) is connected in a cross shape at a cross-shaped portion, a lid body covering an opening above the pair of formwork (2, 2). (10) is provided, the lid body (10) is detachably fixed by a U-shaped reinforcing material (11), and a first portion is provided between the upper surface of the lid body (10) and the reinforcing material (11). The reinforcing plate (12) is provided.

Further, according to the present invention, a mold unit (1) comprising a pair of molds (2, 2) fixed at a slope with a gap and a reinforcing bar (3) connecting the molds to each other. )
And a pair of molds (2,
2) A lid (10) for covering the upper opening is provided, the lid (10) is detachably fixed by a U-shaped reinforcing material (11), and the form (2, 2) is provided. A second reinforcing plate (13) is provided between the reinforcing material (11).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In carrying out the present invention, the lid is preferably made of a synthetic resin plate.

The lower end of the reinforcing member preferably penetrates the slope, but may be connected to a bolt penetrating the lower part of the formwork.

[0009]

Further, the material of the mold can be arbitrarily selected from paperboard, corrugated board, plywood, synthetic resin plate and the like, but those which can be cut with a knife or the like on site are preferable.

[0011]

[Explanation of action and effect] Therefore, for example, the mold shown in FIG. 2 is installed on the slope, and the lid is installed on the upper part of the pair of molds.
Secure with a letter-shaped reinforcement. At that time, the first reinforcing plate or the second reinforcing plate may be attached at the same time. Therefore, the work on the slope is easy. Then, concrete may be poured from between the pair of molds located above the slope. When pouring this concrete, the lid does not overflow the concrete, and if the first reinforcing plate is provided, the lid does not deform. If the second reinforcing plate is provided, the formwork is not deformed. Therefore, the placing work is easy and the finished surface is beautiful.

[0012]

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

In FIG. 1, a pair of paper molds 2 and 2 of the mold indicated by reference numeral A and the openings of the cross-shaped connecting portion B are covered with lids 10 and 10A made of a synthetic resin plate, respectively. .
The lid 10 is fixed to the slope C by a plurality of (three in the illustrated example) reinforcing members, that is, reinforcing rods 11. The reinforcing rod 11 is made of steel bar and has a U-shape.
Through the through holes 10a, 10a formed in the
a penetrates the slope C. Then, the reinforcing rods 11 to 11
Two elongated members, that is, metal first reinforcing plates 12 and 12 are inserted between 11 and the lid 10, and between the reinforcing rods 11 to 11 and the paper form frames 2 and 2. The long members, that is, the two second reinforcing plates 13 made of metal are inserted into each of the two. Further, the lid 10A of the cross portion B is held by the first reinforcing plates 12 and 12. Reference numeral 7 in the drawing is an anchor hole securing frame for fixing the connecting fitting 6 to the slope. Further, the fixing of the lid 10 by the reinforcing rods 11 to 11 is not limited to this, and through holes are formed in both lower end portions of the reinforcing rods, and the bolts penetrating both paper form frames 2 and 2 are coupled with nuts. This can be done by

Next, the operation will be described.

After the setting of the form A for forming the slope frame is completed, concrete having a large slump value is poured from the opening D on the upper side of the slope C. The poured concrete fills the form A, but the opening of the form A is covered by the lids 10, 10 ... and 10A, 10A. There is no. Also, the lid 1
0, 10 ... and 10A, 10A ... are reinforced by the first reinforcing plates 12, 12 and the paper form frames 2, 2 ... are reinforced by the second reinforcing plates 13, 13, respectively, It prevents deformation and damage due to internal pressure of concrete. Then, when the concrete is solidified, the reinforcing rods 11 and 11 are pulled out, the first and second reinforcing plates 12 and 13 are removed, the lids 10, 10 ... and 10A, 10A ... Devices 5, 5 are removed. Then, the paper molds 2, 2, ... Are peeled off from the concrete surface to complete the method frame. However, the paper molds 2, 2, ... May be left as they are and buried in the soil to be put in the legal frame to be digested as an underground component.

[0016]

[Effect of the Invention] As described above, according to the present invention, the following excellent effects are achieved. (1) The work is simple if the lid is placed on a pair of molds with predetermined intervals and the lid is fixed with a U-shaped reinforcing material. (2) Even if the lid and / or the mold is made of a soft material such as paper, the first reinforcing plate and / or the second reinforcing plate can prevent deformation. (3) Since the lid and / or the mold can be made of a soft material, on-site processing becomes easy, and a material that conforms to the slope can be made. (4) It is possible to prevent concrete from overflowing the formwork, and to form a high quality legal form.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a mold for forming a method frame formed by the mold unit proposed by the present application.

[Explanation of symbols]

 A, A1 ... Forming frame for forming method frame B ... Cross-shaped part C ... Slope D ... Opening part 1 ... Forming unit 2 ... Paper form 2a ... Edge Edge 3 ... Reinforcing bar 4 ... Connecting bar 5 ... Connecting device 6 ... Connecting metal fitting 7 ... Anchor hole securing formwork 10, 10A ... Lid 10a ... Through hole 11. ..Reinforcing bars 12, 13 ... Reinforcing plates

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Hiroyoshi Imamura 4-4-56 Shimozato, Higashi-Kurume, Tokyo Within Honshu Paper Co., Ltd. (56) Reference JP-A-2-8417 (JP, A) JP Flat 4-1325 (JP, A)

Claims (2)

[Scope of utility model registration request] 1. A formwork unit (1) comprising a pair of formwork (2, 2) fixed at a slope with a space and a reinforcing bar (3) connecting the formwork to each other. In a method frame molding formwork in which formwork units are connected to each other in a cross shape, a lid body (10) for covering an opening above the pair of formworks (2, 2) is provided, and the lid body ( 10) is detachably fixed by a U-shaped reinforcing member (11), and a first reinforcing plate (12) is provided between the upper surface of the lid (10) and the reinforcing member (11). A formwork for forming a legal frame. 2. A formwork unit (1) comprising a pair of formwork (2, 2) fixed at a slope with a space and a reinforcing bar (3) connecting the formwork to each other. In a method frame molding formwork in which formwork units are connected to each other in a cross shape, a lid body (10) for covering an opening above the pair of formworks (2, 2) is provided, and the lid body ( 10) is detachably fixed by a U-shaped reinforcing material (11), and a second reinforcing plate (13) is provided between the formwork (2, 2) and the reinforcing material (11). A formwork for forming a legal frame.