JPH0416673A - Execution method for formwork panel and panel holding tool therefor - Google Patents

Abstract

PURPOSE:To improve the working efficiency by detachably providing formwork locking member on both ends of a spacer member having engaging pieces to hold the formworks at a prescribed distance, and removing the locking members after placing concrete. CONSTITUTION:Locking members 7 to fix formwork panels 1 are detachably provided on both ends of a spacer member 6 having engaging pieces 8 to hold the formwork panels 1 at a prescribed distance. An engaging piece 9 provided with a level adjusting screw 12 is provided on the locking member 7 and fixed to the panel 1 with set vis 10 and the like. Nextly, a panel holding tool 5 composed of the spacer member 6 and the locking members 7 is fitted to the panels 1, and after placing concrete the formwork is separated by removing the locking members 7. In the case of setting on the upper side, the spacer 6 is also removed. Hereby, the working efficiency can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to temporary frame panels used in the formation of foundation concrete for buildings, structures, etc., and in the construction of concrete walls, such as the formation of concrete road gutters. The present invention relates to a construction method and a panel holder used therefor.

[Conventional technology]

When constructing foundation concrete in construction, wooden temporary framing panels made of plywood or other materials cut to appropriate dimensions on site are placed facing each other at predetermined intervals on both sides of the foundation concrete part to be poured. After fixing the concrete so that it does not move and placing reinforcing bars as desired between the temporary frame panels placed facing each other, concrete is poured, and after the concrete has hardened, the temporary frame panels are removed to finish pouring. It has been used since ancient times.

The method of fixing this pair of temporary frame panels by opposing them at regular intervals is to attach pieces of wood or metal rods at intervals to the upper edges of the temporary frame panels on both sides, in order not to obstruct concrete pouring. The holding material is arranged in a cross-linked manner and fixed by appropriate means such as nailing.

In contrast to this method, a method using a metal panel as a temporary frame panel has recently been widely used.

[Problem to be solved by the invention] In the method of constructing temporary frame panels using wooden temporary frame panels, the temporary frame panels are often manufactured at the construction site, and the size of the temporary frame panels is not necessarily constant. In some cases, the spacing members that hold the spaces between the temporary frame panels are cut from suitable wood at the construction site, so although there is no problem with the foundation itself, the appearance is not beautiful, and the gap between the temporary frame panels is It requires a lot of skill to maintain the spacing, and it takes a lot of time to construct, which is inefficient, and because the panels used for temporary frames are often stained by concrete, Since there is no use for it other than to dispose of it, there were many problems in practical use, such as being extremely uneconomical.

In addition, metal panels for temporary frames can be used repeatedly and can be constructed accurately by mechanical work, but they are extremely heavy and difficult to transport and handle. Not only that, but it also has the problem that it cannot be used in the construction of wooden houses and the like because of its high cost.

In view of the current situation, this invention provides a method for constructing a temporary frame panel that allows the temporary frame panel to be easily constructed using a panel holder having an extremely simple structure, and a method for constructing the temporary frame panel. The object is to provide a panel holder for use.

(Means for Solving the Problems) That is, the method for constructing a temporary frame panel of the present invention includes a spacer member that maintains a constant distance between the inner surfaces of a pair of temporary frame panels that are disposed facing each other; .

Using a panel holder in which locking portions for holding the outer edge of the temporary frame panel are separably formed at both ends of the spacer member, the locking portions of the panel holder are provided with a predetermined width and thickness. A pair of temporary frame panels are installed facing each other by locking the upper end and/or lower end of the temporary frame panels, and the inner surfaces of the opposing temporary frame panels are spaced at a constant interval by the spacer member. It is characterized by holding.

Further, the panel holder used in the method for constructing the temporary frame panel includes a plate-shaped spacer member having a length equal to the distance between the inner surfaces of the temporary frame panels to be arranged facing each other; It is composed of plate-shaped locking members that extend from both ends of the spacer member with a length equal to the thickness of the temporary frame panel, and both ends of the spacer member and the locking members An engaging piece is integrally formed at the tip of the part and engages with the edge of the temporary frame panel, respectively, and the spacer member and the locking member are configured to be separable. It is characterized by the fact that

The temporary frame panel of the present invention may be a panel made of plywood, which has been used for a long time, but it may also be a panel made of a thin plywood board and a thick board member made of lightweight synthetic resin foam. It is also possible to use an integrated version.

[Function] The method for constructing a temporary frame panel of the present invention uses standardized temporary frame panels having a predetermined width and thickness, and a pair of panels is opposed at a constant interval using a panel holder.

Thus, the edges (upper edge and lower edge) of each temporary frame panel to be opposed are locked to the locking parts formed at both ends of the panel holder, and a spacer is formed at the center of the panel holder. The temporary frame panels are held and arranged at predetermined intervals by the temporary frame members, and concrete is poured and hardened between the temporary frame panels arranged in this way, and after the concrete hardens, the panel holders and the temporary frame are The installation is completed by removing the panel.

In this case, the panel holder that holds the lower edge of the temporary frame panel is embedded in the concrete where the spacer member has been placed, so the spacer member and locking member can be easily separated after use. Temporary frame panels and panel holders can be removed.

The panel holder used in the method of this invention engages and holds the edges of the temporary frame panel using engagement pieces formed on both ends of the spacer member and the ends of the locking member coupled thereto. The temporary frame panel held in this way can be installed with the panel securely held by the engaging pieces and with constant spacing maintained by the spacer member formed in the center of the panel holder. .

Depending on the department in which the panel holder is used, concrete may stick to the spacer member, so by making the transition from the spacer member to the locking member narrower to make it easier to separate, The temporary frame panel and panel holder can be easily removed.

〔Example〕

Hereinafter, the method for constructing a temporary frame panel according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows an example of a temporary frame panel used in the method of constructing a temporary frame panel of the present invention, and this temporary frame panel 1 has two
A thin plate member 2 made of veneer plywood or the like whose surface is coated to prevent it from adhering to concrete, and a thick plate member 3 made of polystyrene foam to reduce weight are layered together. Both ends of the connecting member 4.4, which has a cross-sectional shape of a steel material, are installed in each of the opening-shaped gaps and integrated, and the overall thickness is approximately 5011 mm and is constant depending on the specified length and width. This is what makes up the panel for the temporary frame of the size.

The temporary frame panel 1 is installed so that the two panels face each other with each plate member 2 inside, and the panel holder used for this is of the structure shown in Fig. 1. Basically a panel holder.

That is, this panel holder 5 is made of steel material, synthetic resin, etc., and consists of an elongated thin plate-shaped spacer member 6, and locking members 7.7, which are also thin plate-shaped and extend from both ends of the spacer member 6. The length is set to be equal to the thickness of the concrete to be cast, or in other words, the distance between the inner sides of the temporary frame panels to be installed.

A pair of tongue-like engagement pieces 8.8 are formed at both ends of the spacer member 6, one of which is bent at right angles and protrudes. The width of the spacer member 6 is reduced, and the reduced width is gradually expanded to connect the spacer member 6 to a portion having a plate width equal to that of the spacer member 6, and the tip of the spacer member 6 is provided with a square protruding in the same direction as the engagement piece 8. The plate-shaped engagement pieces 9.9 are integrally connected to form the locking members 7, 7 extending from the spacer member 6.

The width of this locking member 7, that is, the distance between the engaging pieces 8 and 9, is made equal to the thickness of the temporary frame panel 1, and the edge of the temporary frame panel 1 is held between the engaging pieces 8 and 9. It is configured so that you can

Further, the reduced width portion formed on the second locking member 7 is cut away from the minimum width portion to facilitate separation of the spacer member 6 and the locking member 7.

Two screw holes are formed in each of the engagement pieces 9 of the locking member 7, and a stopper 10 is provided in each of the engagement pieces 9, and a mouth-shaped angle piece 11 is provided on the back surface of the engagement piece 9. A level adjustment screw 12 is mounted so as to be screwable in the vertical direction by passing through a screw hole formed in the portion of the opening-shaped facing surface.

As shown in FIG. 1, the panel holder 5 having such a structure has the plate member 2.2 made of plywood of the temporary frame panel 1.1 to be installed facing inside, While abutting the lower edges of each of the locking members 7, 7, 3
The lower edge is held between the engaging pieces 8 and 9 on both sides, and the stopper 10 is tightened from the outside of the temporary frame panel 1 to fix it.

Such fixing is also performed on the upper edge of the temporary frame panel 1 using a similar panel support, and such fixing of the upper and lower edges of the temporary frame panel 1 is carried out in an appropriate manner in the longitudinal direction of the temporary frame panel 1. This is done at intervals.

At this time, the panel holder set on the lower edge of the temporary frame panel 1 is adjusted by rotating the level adjustment screw 12 so that the temporary frame panel 1 is grounded at a normal level.

Thus, the pair of temporary frame panels 1, 1 are stably installed while accurately maintaining a predetermined interval for concrete pouring inside.

By pouring concrete inside the installed temporary frame, removing the panel holder 5 after the concrete has hardened, and removing the temporary frame panel, the desired concrete wall can be formed. When the frame panel is removed, the panel holder 5 at the lower edge of the temporary frame panel is embedded in the concrete where the spacer member 6 is placed, so the spacer member 6 and the locking member 7 are The spacer member 6 is cut and separated from the formed reduced width portion, and the locking members 7.7 provided on both sides of the frame 1 embedded in the concrete are removed together with the temporary frame panel 1.

The removed temporary frame panel 1 and the panel holder 5 attached to the upper edge of this temporary frame panel 1 can be used repeatedly.

The temporary frame panels 1 have a certain length, so when connecting them in the longitudinal direction to form a predetermined foundation concrete, in order to strengthen the connection part, the steps shown in Fig. 1 are required. It is preferable to use the connecting member 13 shown.

This connecting member 13 has a U-shaped cross section that is attached across the mutually connecting portions of the temporary frame panels 1, and an opening 14 is formed by appropriately cutting out the center of one side surface of the connecting member 13. As shown in Figure 2, it can be confirmed that the connecting ends of both temporary frame panels are in the center of this opening, thereby confirming that they are in the correct position.

The panel holder 5 shown in FIG. 1 described above can be advantageously used for installing panels for temporary frames when constructing straight concrete walls, but based on this panel holder 5, these two By combining three pieces, three pieces, and four pieces, it can be effectively used for installing temporary frames having various corner parts.

That is, as shown in FIG. 3, two panel holders 5a
and 5b, the ends of one of the locking members 7 are joined in a right angle direction, and if necessary, a corner member 16 bent at right angles is joined to the other locking member 7 to form a square frame-shaped panel. A holder 15 is formed, and the temporary frame panels 1a and lc are held in parallel to each other by the locking members 7, 7 of the panel holder 5a, and the temporary frame panels 1a and lc are held in parallel to each other by the locking members 7.7 of the panel holder 5b. Panel 1b, 1
d to face each other in parallel, the ends of temporary frame panels 1a and 1b are connected at right angles, and the ends of temporary frame panels IC and 1d are connected at right angles, and the spacer members 6a and 6b are used to separate It is possible to install a temporary frame holding L.
It is possible to form a character-shaped concrete wall.

In addition, as shown in FIG. 4, three panel holders 5a,
The locking members 5b and 5c are similarly connected to form a U-shaped panel holder 17, and this is used to attach the temporary frame panel 1.
Form temporary frame panels Ib and ld parallel to a, and attach a temporary frame panel IC to temporary frame panel lb,
Further, the temporary frame panel 1e is connected at right angles to the temporary frame panel 1d, and each spacer member 6a, 6b, 6c is connected to the temporary frame panel 1d.
Temporary frames can be installed with the spacing maintained, thereby forming a T-shaped concrete wall.

Furthermore, as shown in FIG. 5, four panel holders 5a
, 5b, 5c, and 5d are combined to form a panel holder 18 in the shape of a flat opening, and this is used to attach each temporary frame panel 1a and lb, lc and ld, le, 1f, and 1g. and 1h are connected in the right angle direction to form spacer members 6a and 6b.

Temporary frames 5c and 5d can be installed at a predetermined interval, thereby forming a cross-shaped concrete wall.

〔Effect of the invention〕

The method for constructing a temporary frame panel according to the present invention is to securely lock the edge of the temporary frame panel with the locking members of a panel holder having panel locking members formed at both ends of a spacer member. , it is possible to quickly and accurately install the temporary frame panels by keeping the distance between the opposing temporary frame panels constant using the central spacer member.

In particular, use a lightweight temporary frame panel with a predetermined width and thickness formed by laminating a thin plate member made of plywood and a thick plate member made of lightweight synthetic resin foam. As a result, a temporary frame panel having a desired shape can be efficiently constructed with fewer work steps.

On the other hand, the panel holder used in the above invention includes a spacer member having a length equal to the distance between the temporary frame panels to be used, and a length equal to the thickness of the temporary frame panels at both ends of the spacer member. and a locking member extending from the spacer member, and an engaging piece capable of engaging the edge of the temporary frame panel is formed at both ends of the spacer member and at the tip of each locking member.

Since the spacer member and the locking member are configured to be separable, the locking member reliably locks the edge of the temporary frame panel, and the spacer member allows the temporary frame panel to face each other. The spacing can be maintained accurately, and
Since the spacer member and the locking member are separable,
The locking member can be easily separated while leaving behind the spacer member embedded in the concrete by pouring the concrete, which can greatly contribute to labor saving and improved efficiency in one operation.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an example of the method of installing a temporary frame panel of the present invention and a panel holder used therein;
The figure is a perspective view showing an example of a temporary frame panel used in the present invention. FIG. 3 is a perspective view showing another embodiment of the method of this invention, FIG. 4 is a simplified plan view showing still another embodiment of the method of this invention, and FIG. 5 also shows another embodiment of the method of this invention. FIG. 3 is a simplified plan view showing an example. 1.1a to 1h... Temporary frame panel 5, 15.17.18... Panel holder 6... Spacer member 7... Locking member 8.9... Engagement piece No. 1N Patent Applicant: Masaru Yoshitani, brother-in-law, 2nd attorney, patent attorney, Yuki 1) Hiroshi Zen

Claims (1)

[Scope of Claims] 1) A spacer member that maintains a constant distance between the inner surfaces of a pair of temporary frame panels disposed facing each other, and an outer edge of the temporary frame panels at both ends of the spacer member. Using a panel holder with separable locking parts, attach the upper end and/or lower end of the temporary frame panel having a predetermined width and thickness to the locking parts of the panel holder. A method for constructing temporary frame panels, which comprises installing a pair of temporary frame panels facing each other by locking them, and maintaining a constant distance between the inner surfaces of the opposing temporary frame panels using the spacer member. . (2) The above-mentioned temporary frame panel is constructed by combining a thin plate member with poor adhesion to concrete and a thick plate member made of lightweight synthetic resin foam. 2. The method for constructing a temporary frame panel according to claim 1, wherein the thin plate member having poor elasticity is placed on the inside. (3) A plate-shaped spacer member having a length equal to the distance between the inner surfaces of the temporary frame panels to be arranged facing each other; It is composed of plate-shaped locking members each extending with a length equal to the thickness, and at both ends of the spacer member and the tip of the locking part, projecting to one side and used for a temporary frame. A holder for a temporary frame panel, characterized in that an engaging piece that engages with an edge of the panel is integrally formed, and the spacer member and the locking member are configured to be separable.