JPH07279420A - Sash hold-down form for pc-board window frame - Google Patents

Abstract

PURPOSE:To conduct mounting, dismantling, cleaning and maintenance simply and safely by hands by using sash hold-down forms for a PC-board window frame, to which a hollow square-shaped rod-shaped member being made of a hard rubber and having an air vent hole is connected continuously. CONSTITUTION:A sash 4 for a window frame placed on a PC-board curing head 1 and positioned by a lower fixing frame 12 is held down from the upper side while sash hold-down forms 16 for the PC-board window frame as forms for placing concrete are composed of hollow square-shaped rod-shaped form members 17, 18, 19, 20 made of a hard rubber. Air vent holes 17b-20b preventing expansion by hearing during the steam curing of PC boards 8 and having small diameters are formed at a plurality of places of the top faces of the form members 17-20, and external concrete mold-face members 17c-20c are inclined in an outward fan-shaped manner for facilitating waterproofing and mold release. A projection section 20d is extended from the lower section 20c of the form member 20 holding down a sill section. The form members 17-20 are connected continuously in a quadrilateral shape, and fixed detachably onto the lower fixing frame 12 by a clamper 21, and the sash 4 for the window frame is pressed down extending over the whole surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for factory production of PC boards (abbreviation of precast concrete boards) such as outer walls of residential buildings. The present invention relates to a sash holding frame for a PC plate window frame used for holding down the entire circumference.

[0002]

2. Description of the Related Art Generally, a PC board with a sash for a window frame such as an outer wall of a residential building is usually manufactured by the following procedure. That is, the procedure will be briefly described with reference to FIGS. 5 and 6. The upper surface of the curing bed 1 such as an iron plate installed in the factory and the surrounding formwork (not shown) are cleaned to apply the release agent. . The lower fixing frame 2 made of chevron steel is assembled and placed on the upper surface of the curing bed 1 and fastened and fixed to the curing bed 1 by fasteners 3 such as bolts. Incorporate. Also assemble the necessary conduits, electrical boxes and other equipment. Further, a desired window frame sash (aluminum sash) 4 is laid on the upper surface of the curing bed 1 and applied to the lower fixed frame 2 for positioning and setting. At this time, a mold frame 5 made of wood or the like for forming a groove for mounting the indoor frame is bonded and fixed to the lower outer periphery of the window frame sash 4.

In this state, the window frame sash 4 is further added.
The heavy window frame sash holding frame 6 is mounted on the upper side of the above so that the window frame sash 4 is pressed from the upper side over the entire circumference so as not to rise. The window frame sash presser mold 6 is tall and doubles as a mold for placing the next concrete 7.

In this state, concrete 7 is placed around the window frame sash 4 on the upper surface of the curing bed 1 and the upper holding frame 6 and the surface 7a of the concrete 7 is finished for inspection. The curing bed 1 is heated as it is to about 60 to 80 ° C. from below by using steam introduced from a boiler or the like, and a curing cover (not shown) is covered over the entire upper surface to accelerate the curing while appropriately heating the concrete 7. To do.

Thus, after a predetermined period of time, the curing cover is temporarily peeled off, the upper window frame sash holding frame 6 is removed, and the surface 7a of the concrete 7 and the window peripheral surface 7b are repaired by a plasterer. Then, again, the window frame sash holding frame 6 is fitted again and mounted on the window frame sash 4 again, and the curing cover is re-covered to promote curing. In this way, after curing for a predetermined time, the curing cover is peeled off, the upper window frame sash holding frame 6, the lower fixed frame 2, the peripheral frame, etc. are removed and the mold is removed.
Obtain the plate 8.

Here, the above-mentioned window frame sash holding frame 6 used for manufacturing the PC plate 8 is made of steel plates 6a, 6a.
Welded b and 6c to form a U-shaped cross section,
The reinforcing steel plate 6d is welded to the inside at a proper pitch, and the assembling members are connected in a four-sided quadrilateral shape by welding, and further, the reinforcing steel plate 6e is welded to each corner portion and the connecting reinforcing material 6f is welded and fixed in a cross shape. The structure is a very heavy and strong structure that reliably prevents the window frame sash 4 from rising when pouring concrete and also serves as a formwork when pouring concrete 7.

[0007]

By the way, the above-mentioned conventional sash presser frame 6 for a PC plate window frame is large in size and has a steel plate property and is very heavy as described above. However, when the PC board is manufactured, when the sash pressing frame 6 is first attached to the upper side of the window frame sash 4 positioned and set on the curing bed 1, or when plastering a concrete surface during curing. In order to perform repair (rework), the crane must be used both when temporarily removing and reattaching the sash presser form 6, and at the time of the last removal, which makes the work bothersome and efficient. Cause decline.

Further, since the window frame sash holding frame 6 is a large heavy object, it is difficult to clean it, and it is troublesome to lift it by a crane and lean against it to clean it. A lot of space is needed in the temporary storage area when the PC board is removed on the way and the storage area when the PC board is removed after the PC board is manufactured. There was also a safety problem due to the work of handling large and heavy objects.

Further, since the window frame sash holding frame 6 is a strong member made of a steel plate, it is an aluminum sash 4 when it is placed on or removed from the window frame sash 4. There is a problem that the surface of the machine is easily scratched, which leads to a defective PC board product, or an operator is hit by a hand and injured.

Further, the above-mentioned conventional window frame sash holding frame 6 is fixed in size individually and cannot be adapted to the window frame sashes 4 of various different sizes. It has to be produced, which is complicated and costly.

The present invention has been made in view of the above circumstances, and an object thereof is to make a window sash for a window frame which is made of a lightweight non-metallic material, is easy to handle in a split type, and is positioned and set on the upper surface of a PC board curing bed. On the other hand, workers can easily attach and detach without using a crane,
Work efficiency and safety can be improved, and the window frame sash can be reliably pressed down from the upper side.
Temporary removal and reattachment during plate curing can be easily done, and plastering of concrete surface can be easily done at any time (working), and the window frame sash will not be scratched or injured by workers. Moreover, it is a very easy-to-use PC board window because it requires less space for storage when removed, can be cleaned easily and neatly, and can be easily applied to sashes for window frames of different sizes. It is to provide a sash presser frame for a frame at low cost.

[0012]

In order to achieve the above object, the present invention provides a window frame sash that is laid on the upper surface of a PC board curing bed and positioned and set by a lower fixed frame from the upper side when pouring concrete. In a sash presser mold for a PC plate window frame to be clamped, a plurality of lightweight non-metal rectangular rod-shaped mold members are connected to each other and removably fastened to the lower fixed frame through a fastener to be used for the window frame. It is characterized in that the sash can be pressed from the upper side over the entire circumference. It is desirable that the mold member of the sash presser mold for the PC plate window frame has a hollow rectangular rod shape made of hard rubber and has an air vent hole.

[0013]

In the sash presser mold for a PC plate window frame having the above structure, each mold member has a split mold structure using a plurality of lightweight non-metal mold members such as hard rubber. It is easy to handle, and workers can easily attach and remove it on the window frame sash positioned and set on the upper surface of the PC board curing bed without using a crane. As well as being able to improve, since each formwork member is connected and fastened to the lower fixed frame with a fastener, the window frame sash is pressed from the upper side to ensure that the window frame sash rises when placing concrete. And prevent it from acting as a casting concrete formwork.

Further, since each formwork member can be easily attached and detached by loosening the fastener, the P
Temporary removal and reattachment can be easily done at any time during C plate curing, and plastering (reworking) of the concrete window peripheral surface can be easily performed at an appropriate time.

Further, since each form member is made of lightweight non-metal such as hard rubber, the sash for the window frame is not scratched or injured by the worker, and the split type structure is employed. It requires less space for storage when removed, and can be easily and neatly cleaned, and by selecting and combining the length of each form member with window frames of different sizes. It is easy to deal with and does not have to be individually manufactured unlike the conventional sash holding frame for a window frame made of steel plate, and the cost can be reduced.

Further, each form member is made of a hard rubber hollow square rod and has an air vent hole.
In addition to the above-mentioned action, it is lighter in weight and easier to handle, and even if it is heated during curing of the PC board, it is hollow and has an air vent hole, so deformation due to thermal expansion is unfavorable. Even if a deformation occurs, it can be easily corrected.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. It should be noted that FIG.
A partially omitted cross-sectional view taken along line W, FIG.
-Partially omitted cross-sectional view taken along line X, and Fig. 2 is a plan view of a sash holding frame for a PC plate window frame and a lower fixed frame.

First, as one for positioning and fixing the window frame sash 4 before placing the concrete 7 on the upper surface of the curing bed 1 for manufacturing the PC board 8 similar to the conventional one, one is provided on each of the four sides of the front, rear, left and right. A lower fixed frame 12 is provided. These lower fixed frames 12 are assembled by welding and joining steel plates instead of the conventional angle steel. That is, the steel plate 12
A strong structure in which a, 12b, and 12c are welded together to form a substantially U-shaped cross section, and a reinforcing steel plate 12d is welded inside at a proper pitch, and a vertical height H is a window frame sash on the curing bed 1. It is set to be equal to the set height of 4 (top surface).

As shown in FIG. 2, these lower fixing frames 12 are arranged on the front, rear, left and right sides and fastened and fixed to the curing bed 1 by fasteners 13 such as bolts. A window frame sash (aluminum sash) 4 can be positioned and set while lying on the upper surface of the curing bed 1. At this time, a frame 15 for forming an interior frame mounting groove is adhesively fixed to the lower outer periphery of the window frame sash 4 so that the window frame sash 4 is floated about 2 mm above the curing bed 1. To support. Although the mold 15 is made of hard rubber in this embodiment, it may be made of wood as in the conventional case.

Here, the window frame sash 4 is pressed from the upper side to prevent the floating, and at the same time the cast concrete 7
The sash presser frame 16 for the window frame, which is the frame of the above, is attached. The window frame sash presser mold 16 is made of a plurality of lightweight non-metallic square bar-shaped mold members, preferably hard rubber (N.
A plurality of (four in the illustrated embodiment) hollow rectangular rod-shaped frame members 17, 18, 19, 2 made of integrally molded BR)
No. 0 is used, and these mold frame members 17 to 20 are individually placed over the upper surface of the window sash 4 and the upper surface of the lower fixed frame 12 as shown in FIG. Two
No. 0 is connected in a quadrilateral shape as shown in FIG. 2, and in this state, the form members 17 to 20 are respectively arranged at appropriate pitches (for example, 200 mm to 40 mm).
Mounting holes 17a, 18a, which are drilled at a pitch of about 0 mm)
The window frame sash 4 can be pressed from the upper side over the entire circumference by being fastened and attached to the lower fixed frame 12 by the bolt / nut fasteners 21 via 19a and 20a. Each of these formwork members 17 to 20 can be attached to and detached from the lower fixed frame 12 by operating the fastener 21. In addition, on the upper surface of the lower fixed frame 12, a small-angle rod-shaped guide member 22 for bending prevention and positioning of each of the frame members 17 to 20 is provided.

Further, these hollow rubber rod-shaped mold members 17 to 20 made of hard rubber are provided at appropriate plural positions on the upper surface (2 for each one) so as not to expand even if they are heated during steam curing of the PC plate 8. Air vent holes 17b, 18 with small diameter
b, 19b, 20b are formed.

Further, each of the mold members 17 to 20 has an outer concrete mold surface portion 17c, 18c, 19c, 2 of each of the respective mold members.
0c is inclined outwardly so that the cast concrete 7 can be easily removed from the window peripheral surface 7b. Since each of the mold members 17 to 20 has a hollow rectangular rod shape made of hard rubber and can be deformed to some extent, each of the outer concrete mold surface portions 17c, 18c, 19c,
Window peripheral surface 7 of cast concrete 7 even if 20c is vertical
Demolding from b is possible.

However, the formwork member 20 for pressing down the lower side (sill) of the window frame sash 4 at the left end of FIG. Since it is necessary to incline the surface 7b, at least only the outer concrete mold surface portion 20c is inclined outward. Also, the three sides of the window frame sash 4 and the left and right sides have substantially the same cross-sectional shape, but the lower side (sill) has a different cross-sectional shape from other ones. The frame member 20 for pressing down from above has a ridge portion 20d integrally provided on the lower portion of the outside concrete mold surface portion 20c.

The sash presser frame 16 for the window frame having the above structure
The procedure for making a PC board with a sash for window frames such as outer walls of a residential building is described using, and the upper surface of the curing bed 1 such as an iron plate installed in the factory and the surrounding formwork (not shown) can be cleaned. Go and apply a release agent. The four lower fixing frames 12 are fastened to the upper surface of the curing bed 1 by fasteners 13 so that the lower fixing frames 12 are circumferentially arranged at a predetermined position, and a steel frame or a reinforcing bar (not shown) is incorporated at a required position around the lower fixing frame 12. Also assemble the necessary conduits, electrical boxes and other equipment. Further, a desired window frame sash (aluminum sash) 4 is laid on the upper surface of the curing bed 1 and applied to the lower fixed frame 12 for positioning and setting. At this time, a frame 15 for forming a room-side frame mounting groove is bonded and fixed to the lower outer periphery of the window frame sash 4.

In this state, the window frame sash 4 is further added.
The window frame sash holding frame 16 is mounted so as to be placed on the upper side of the. That is, the worker manually makes the hollow rectangular rod-shaped form member 1 made of hard rubber of the window frame sash holding form 16.
As shown in FIG. 1, 7, 18, 19, and 20 are individually mounted so as to straddle the upper surface of the window frame sash 4 and the upper surface of the lower fixed frame 12, and the mold members 17 to 20 are shown in FIG. As described above, the form members 17 to 20 are connected to each other in a quadrilateral shape, and in this state, the form members 17 to 20 are fastened to the lower fixed frame 12 by the fasteners 21 of bolts and nuts through the mounting holes 17a, 18a, 19a, and 20a. Thus, the window frame sash 4 is pressed by the window frame sash retaining frame 16 from the upper side over the entire circumference so that it does not float up.

In this state, concrete 7 is cast around the window frame sash 4 on the upper surface of the curing bed 1 and the holding frame 16 on the upper side, and the surface 7a is finished and inspected. As it is, the curing bed 1 is steam-heated from the lower side to about 60 to 80 ° C. by using steam introduced from a boiler or the like, and a curing cover (not shown) is covered over the entire upper surface, and the concrete 7 is cured while being heated appropriately. Facilitate.

Thus, after a predetermined period of time, the curing cover is temporarily peeled off, and the upper window frame sash holding frame 16 is removed, that is, the operator can form the frame members 17, 18, 1.
The fasteners 21 of 9 and 20 are removed to remove the formwork members 1
A worker manually removes 7 to 20 one by one.

In this way, the surface 7a of the concrete 7 and the window peripheral surface 7b are repaired by plastering. Then, again, the frame members 17 to 20 of the window frame sash holding frame 16 are processed in the same manner as described above, and the upper surface of the window frame sash 4 and the lower fixed frame 12 are processed.
Attach to the upper surface and cover the curing cover again to promote curing. After curing for a predetermined time in this way, the curing cover is peeled off and the upper window frame sash holding frame 16 and the lower fixed frame 12 are removed.
Then, the surrounding mold and the like are removed and the mold is removed to obtain a PC board 8 with a sash for a window frame.

With such a window frame sash holding frame 16, a plurality of lightweight non-metal frame members 1 such as hard rubber is used.
Since it is a split type structure that uses 7 to 20, it is easy to handle, and the operator manually operates the window frame sash 4 set on the upper surface of the PC board curing bed without using a crane. It can be easily installed and removed, improving work efficiency and safety. Even if each of the form members 17 to 20 is made of a lightweight non-metallic material such as hard rubber, it can be firmly fastened and fixed by the fasteners 21 on the lower fixed frame 12 in a state of being connected to each other in the shape of a hollow rectangular rod. The window frame sash 4 is pressed down from the upper side to reliably prevent the window frame sash 4 from rising when pouring concrete, and also fulfills a satisfactory function as a formwork for the cast concrete 7.

Further, each form member 17 to 20 has a fastener 21.
Since it can be easily removed by loosening the concrete, it is easy to temporarily remove and reattach the PC board at any time during curing of the PC board without preparing a crane or the like.
It becomes possible to easily and conveniently repair (rework) the plasterer's window peripheral surface 7b at an appropriate time (for example, early).

Further, since each of the form members 17 to 20 is made of a lightweight non-metallic material such as hard rubber, the window frame sash 4 is not scratched or injured by an operator, and the split type structure is employed. Therefore, the space for the storage place when removed is small, and the cleaning can be performed easily and neatly.

Further, since each of the form members 17 to 20 is made of hard rubber and has a hollow rectangular rod shape and has an air vent hole, the weight is further reduced, the handling is easy, and the curing of the PC board is performed. Even if it is heated inside, it is hollow and has an air vent hole so that deformation due to thermal expansion is unfavorable, and even if deformation such as bending occurs, it can be easily corrected because it is made of rubber.

Further, the window frame sash holding frame 16 is composed of a plurality of lightweight non-metal frame members 17 to 20 such as hard rubber.
Since it is a split type structure using,
By appropriately selecting the length of 20, it is possible to correspond to the window frame sashes 4 of various sizes, and it is not necessary to individually manufacture it as in the conventional steel plate window frame sash presser formwork.
The cost can be reduced.

Next, another embodiment of the present invention will be described with reference to FIGS.
Will be described. First, FIG. 3 illustrates a window frame sash holding frame 26 having a more subdivided structure than that of the above embodiment.
That is, in the window frame sash presser mold 26 of this example, since the mold member 20 for pressing the lower side portion (sill portion) of the window frame sash 4 from the upper side has a different cross-sectional shape from the other, as described above. In the same manner as in the above-mentioned embodiment, one mold member for pressing the three side sashes of the window frame sash 4 and the left and right sides is a direct mold member 27A divided in two. 27B, 28A, 8B, 29A, 29B
It is composed of.

In the window frame sash holding frame 36 illustrated in FIG. 4, the frame member 20 for holding the lower side portion (sill portion) of the window frame sash 4 from the upper side is the same as the above. Since the shape is different, the number of the formwork members is exactly the same as that of the above-described embodiment, and the formwork members for pressing the three side sashes of the window frame sash 4 and the left and right sides are a pair of left and right L.
It is composed of corner-shaped form members 37A and 37B, and straight form members 38, 39 and 40 which connect the corner form members 37A and 37B to each other and the form member 20.

All the formwork members 2 of the split type window frame sash holding formwork 25, 36 shown in FIGS.
0, 27A, 27B, 28A, 8B, 29A, 29B and 37A, 37B, 38, 39, 40 are hard rubber hollow rectangular rods having the same sectional shape as the embodiment shown in FIG. In the same manner as described above, they can be detachably attached to the lower fixed frame 12 by the fasteners 21 of the bolts and nuts through the attachment holes, respectively, and each have two or more small diameter air vent holes.

With the split type window frame sash presser molds 25 and 36 shown in FIGS. 3 and 4, various kinds of frame members can be appropriately selected and combined to form window frame sashes 4 of different sizes. On the other hand, it will be easier to deal with.

In the sash presser frame for the window frame of the above-mentioned embodiment, each frame member has a hollow rectangular rod shape made of hard rubber, but the present invention is not limited to this, for example, vinyl chloride other than rubber. A synthetic resin molded product such as the above may be used, and the cross-sectional shape thereof may be a rod shape having various cross-sectional shapes such as a U-shaped cross section other than the hollow prismatic shape.

[0039]

Since the sash presser frame for the PC board window frame of the present invention is constructed as described above, it is a lightweight non-metallic and split type, which is easy to handle and can be mounted on the upper surface of the PC board curing bed. Workers can easily attach and remove the window frame sashes that have been positioned and set manually without using a crane, improving work efficiency and safety and ensuring that the window frame sashes are installed from above. It can be pressed down on the PC board, and in particular, it can be easily removed and reattached during the course of curing the PC board, the plastering of concrete surface can be easily done at any time, and the window frame sash can be damaged. There is no need to worry about injuring the operator, and the space for the storage space when removed is small, and it is easy and clean to clean, and it is also easy to handle sashes for window frames of different sizes. Etc., very easy to use it won by the well and the cost can be reduced.

[Brief description of drawings]

FIG. 1 shows an embodiment of a sash holding frame for a PC plate window frame of the present invention, (a) is a cross-sectional view (a cross-sectional view taken along the line WW of FIG. 2) in which the use state is partially omitted, FIG. 3B is a cross-sectional view (partial cross-sectional view taken along the line XX in FIG. 2) in which the use state is partially omitted.

FIG. 2 is a plan view of a sash holding frame for a PC plate window frame and a lower fixed frame according to the above embodiment.

FIG. 3 is a plan view showing another embodiment of the sash holding frame for the PC plate window frame of the present invention.

FIG. 4 is a plan view showing still another embodiment of the sash presser mold for a PC plate window frame of the present invention.

FIG. 5 is a plan view of a conventional sash holding frame for a PC board window frame.

6 is a sectional view showing a state in which a sash presser mold for a PC plate window frame of the conventional example is used, FIG. 6A is a sectional view in which a part corresponding to the line YY of FIG. 5 is omitted, and FIG. Sectional drawing which abbreviate | omitted a part corresponding to the ZZ line of FIG.

[Explanation of symbols]

1 ... PC board curing bed, 4 ... Window frame sash, 7 ... Concrete, 8 ... PC board, 12 ... Lower fixed frame, 16, 26,
36 ... Sash presser frame for window frame, 17 to 20, 27A to 2
9B, 37A to 40 ... Form member, 17b to 20b ... Air vent hole, 21 ... Fastener.

Claims (2)

[Claims] 1. A lightweight sash presser mold for a PC plate window frame that presses down a sash for a window frame, which is laid on the upper surface of a PC plate curing bed and positioned and set by a lower fixed frame, from the upper side during concrete placement. A plurality of rectangular rod-shaped frame members made of aluminum are connected to each other and removably fastened to the lower fixed frame via fasteners so that the window frame sash can be pressed from the upper side over the entire circumference. Characteristic PC plate window frame sash presser formwork. 2. The PC plate window frame sash presser mold according to claim 1, wherein the frame member is a hollow rectangular rod shape made of hard rubber and has an air vent hole. Sash presser formwork.