JPH0259915B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] Industrial Application Field The present invention relates to a method for removing an old sash frame from a window of a building, and a method for renovating a window frame by removing the old sash frame and installing a new window frame. Regarding the method.

Prior Art To renovate the windows of an old building, the old window frame must be removed and a new window frame installed. In other words, when renovating a window, the old sash frame must be removed.

Another way to renovate a window is to leave the old window frame in place and install a new window frame over it. However, this method of attaching a new window frame to an old sash frame is to attach and fix the old sash frame to an old sash frame that is already old and corroded, and the entire outer periphery of the sash frame is held and fixed in the wall opening. Rather, it is fixed to the old sash frame in several places using small pieces of mounting material, so it is difficult to say that it is strong enough.Furthermore, the new window frame has to be installed on top of the old sash frame, so the old sash frame It is slightly smaller than . Therefore, it is desirable to remove the old window frame and install a new window frame.

Conventionally, in order to remove an old sash frame, it was necessary to break down the area around the window opening in a building by chiseling. Therefore, the construction work was large-scale, labor-intensive, and took a long time.
In order to eliminate these drawbacks, he proposed a method that does not require the destruction of buildings (Japanese Patent Application Laid-open No. 1983-
38484). This method involves installing a hydraulic cylinder on the sash frame and operating it to forcefully pull the center part of the sash frame and peel it off from the window opening.

Problems to be Solved by the Invention The sash frame is supported by attaching anchors to reinforcing bars extending from the frame and welded to the anchors, so when removing it, the welds to the anchors have to be torn off. It takes a lot of force. Therefore, the conventional method for removing the sash frame is to apply strong force using a hydraulic cylinder to remove it, as described above. Therefore, the attachment of the hydraulic cylinder to the sash frame must be done securely by welding or the like so that the hydraulic cylinder does not come off, and this work requires considerable skill and is also dangerous. Furthermore, since the reinforcing bars are stretched by applying a large force as described above, the building frame itself may be destroyed.

Therefore, the present invention provides a method for removing a sash frame that can be easily removed without requiring a large amount of force, that is, without destroying the frame, and the method can be used to renovate a window. The purpose of this invention is to provide a method for renovating windows.

[Structure of the Invention] Means for Solving the Problems Therefore, the first invention has a structure in which, as shown in FIG. The sash frame 3 is cut 5 around the location 4 to which the anchor 2 is fixed, and then the sash frame 3 is pulled away from the window opening.

A second invention is to remove the sash frame according to the first invention, and as shown in FIG. This method is characterized in that an anchor bolt 8 is driven into the frame 6 through the window opening from which the window frame 10 has been separated, and a new window frame 10 is supported by the anchor bolt through appropriate fittings 9.

The third aspect of the invention is to separate the sash frame from the window opening according to the first invention, and remove the mortar 7 and reinforcing bars 1 left in the window opening after the sash frame is separated from the window opening.
The window frame 10 is removed as shown in the figure, and then anchor bolts 8 are driven into the frame 6 through the window opening, and a new window frame 10 is supported by the anchor bolts via appropriate fittings 9.

Function The sash frame 3 is supported by anchors 2 on reinforcing bars 1 protruding from the frame 6, and mortar 7 is generally filled between the sash frame 3 and the frame. Although the sash frame 3 is also bonded by the mortar 7, the support provided by the reinforcing bars 1 and anchors 2 is the strongest and is the part that requires the most force when peeling off the sash frame. Therefore, if the sash frame 3 is cut around the area where the anchor 2 is welded as in the first invention, the sash frame 3 is simply glued with mortar 7 and the adhesive force is not very strong, making it easy to assemble the sash frame. It can be torn off. Therefore, there is no possibility that the building frame will be destroyed.

When renovating a window, once the old sash frame is removed, anchor bolts 8 are driven into the frame 6, and the window frame can be supported by appropriate metal fittings 9. At that time, the second invention attaches a new window frame by the above method while leaving the sash frame removed. Therefore, the window frame is attached from above the anchor 2, but it is supported by anchor bolts newly driven into the frame regardless of this, so it is firmly supported. Also, the window frame above the anchor 2 is somewhat smaller than the old satsushi frame, but it is not so much that it poses a particular problem.

In the third invention, a new window frame is installed after removing the remaining reinforcing bars 1, that is, anchors 2 and mortar 7, so there is no difference from installing a new window frame.

Example In Figure 4, the old sash frame (upper frame) 11 is the frame 12.
As shown in the figure, the anchor 13 is attached by welding to the reinforcing bar 14 protruding from the frame 12, and this anchor 1
A sash frame 11 is supported at 3. This sash frame is made of steel, and the anchors 13 are welded by spot welding or the like to the sash frame 1.
It is attached to the bottom of 1. Therefore, the welding location can be identified and the area around it can be cut. This cutting can be done by using a small rock drilling machine, a riveting gun with a small punch-shaped chisel, or a chisel.
It is possible to continuously cut the hole 15 around the welded part, but it may also be cut by fusing, and the cutting means is arbitrary. Note that, if the upper frame 11 has a rail 11a as shown in FIG. 4, this is removed with a crowbar or the like and then cut.

After cutting not only the upper frame 11 but also the lower frame and the vertical frame around each anchor 13, the mortar 16 is attached to the frame 12 by strongly pulling the sash frame in an appropriate manner.
Since it is simply glued, it can be easily peeled off. In this case, the peeling method is the same as in the past, by pulling it toward the center of the opening.

Next, after removing the sash frame 11 as described above, anchor bolts 17 are driven into the frame 12 as shown in FIG. The mounting bracket 19 attached to the frame) 18 is fixed by welding. This mounting bracket 19 is not a special one, and the one used for ordinary aluminum alloy sashes can be used as is. The lower frames 10, 20 (FIG. 2), (FIG. 7) and vertical frames (not shown) are similarly installed on the frame 12 and finished with mortar.

FIG. 3 is an example of the third invention as described above, in which the reinforcing bars 14 and mortar are removed after removing the sash frame 11.
This is similar to the example shown in FIG. 6, FIG. 7, and FIG. Needless to say, after installing a new window frame, it is desirable to fill the space between it and the mortar or frame.

[Effects of the Invention] As described above, in the first invention, since the sash frame is removed after cutting around the anchor attachment point of the sash frame, a large force is not required to remove the sash frame, and the device does not require a large amount of equipment. The window frame can be easily removed without using.

Furthermore, in the second aspect of the invention, the sash frame is removed and a new window frame is installed with the reinforcing bars, anchors, etc. intact, so that the window frame installation work can be carried out efficiently. Moreover, because the anchor bolts are driven into the frame and fixed to it, the installed window frame can be stably supported for a long period of time, and it can be used as a window frame when attached to an old sash frame. There is no need to use narrow ones.

Furthermore, in the third aspect of the invention, a new window frame is installed after removing the reinforcing bars and mortar, so it can be installed in the same manner as in the case of a new building.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of a sash window to be removed according to the first invention, FIG. 2 is a sectional view of a window renovated by the second invention method, FIG. 3 is a sectional view of a window renovated according to the third invention, and FIG. The figure is a sectional view of an embodiment of the sash frame to be removed according to the first invention; FIG. 5 is a plan view thereof; and FIG. FIG. 7 is a sectional view of the lower frame side of FIG. 6. 1: Rebar, 2: Anchor, 3: Sash frame, 4:
Anchor attachment point, 5: Cutting line, 6: Structure, 7:
mortar, 8: anchor bolt, 9: mounting bracket,
10: Window frame.

Claims (1)

[Claims] 1. In a method for removing a sash frame supported by anchors from the building frame to reinforcing bars protruding into window openings of a building frame at appropriate intervals, A method for removing a sash frame, which comprises cutting the periphery and then separating the sash frame from a window opening. 2 Cut the sash frame supported by the anchor on the reinforcing bars protruding into the window opening of the building frame at the point where the anchor is fixed, and then pull the sash frame away from the window opening and remove the sash frame from the window opening. This window renovation method is characterized by driving an anchor bolt into the frame through the window opening from which the sash frame has been separated, and supporting the new window frame on the anchor bolt through appropriate mounting fittings. 3 The sash frame, which is supported by the anchor on the reinforcing bars protruding into the window opening of the building frame, is cut at the part of the sash frame where the anchor is fixed, and then the sash frame is pulled away from the window opening, and the sash frame is removed from the window opening. After the frame is pulled apart, remove the mortar and reinforcing bars left in the window opening, then drive anchor bolts into the building frame from the window opening, and support the new window frame to the anchor bolts using appropriate mounting hardware. A window renovation method characterized by: