JPS644032B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a method for removing an existing sash, such as a steel sash installed in an opening in a building frame, and a method for removing the existing sash, which is used when replacing it with a new sash. This relates to the sash removal device used.

Background of the Invention and Prior Art Conventionally, steel sashes and the like have been widely used for openings in buildings. However, with the recent spread of aluminum sashes, etc., the steel sashes installed on conventional buildings are difficult to open and close, are rusty and difficult to repair, and have poor sound insulation properties. It has been recognized that there are problems such as poor airtightness, troublesome operation of members, and poor appearance of the building.

Therefore, it has been proposed to remove the existing sashes made of steel or the like and install new sashes such as aluminum sashes.

Conventionally, such devices for removing existing sash frames, such as those shown in Japanese Unexamined Patent Application Publication No. 57-9979, have been developed in which supports are placed inside and outside the opening, and a pull-out device installed between the supports is used to remove the existing sash frame. There are known types that are pulled out in the direction of the frame surface.
However, even if there is space to install a support on the outside of the room, it is rare that there is enough space both indoors and outdoors, and if there is space only on one side of the sash frame, the above-mentioned device cannot be used. Can not.

Furthermore, since the sash frame is forcibly pulled out in the in-plane direction, damage to the frame is unavoidable, and it is desirable to find ways to minimize damage.

Purpose of the Invention This invention was invented under the above-mentioned circumstances, and it is possible to install and operate the device in a limited space, and to minimize damage to the frame and interior and exterior when the sash is pulled out. The object of the present invention is to provide a method and device for removing a sash.

Structure of the Invention In the method for removing the upper frame and vertical frame of the sash according to the present invention, a support is installed at one of the openings of the frame, usually on the outdoor side. Then, the pulling jig connected to the existing sash frame to be pulled out is connected to the support via a tension device, and the point of application of the pulling force applied to the pulling jig is biased away from the support. . In this state, the pulling jig is pulled diagonally to the sash surface using a tensioning device, and the sash frame is pulled out from one side of the sash frame toward the other in the direction perpendicular to the expected width of the sash frame. The sash can be removed with less force than when pulling it out, and without damaging the structure.

In addition, as a removal device used in the above-mentioned removal method, a removal device consisting of the above-mentioned support, a pulling jig, and a tensioning device such as a chain block was developed. In this device, the drawing jig consists of two drawing plates facing each other attached to a connecting shaft so that the distance between them can be freely adjusted, and the tips of the drawing plates are locked, connected with screws, welded, etc. It is designed to be connected to the satsushi frame that should be removed. Further, the tensioning device has one end connected to the support with a hook or the like, and the hook provided at the other end is locked to the connecting shaft of the extraction jig to tension the extraction jig obliquely to the sash surface. In addition, on the two pull-out plates,
A pair of left and right hook fixing screws are provided, each of which protrudes in a direction perpendicular to the pull-out plate, for adjusting and fixing the position of the hooks that are engaged with the connecting shaft. It is designed to effectively transmit the tensile force of the clamping and tensioning device.

Embodiment FIG. 1 shows a state in which a sash removal device is installed in an opening of a frame having existing sash frames 4, 5, and 6, and an attempt is made to pull out an upper frame 4. A support 3 is installed in the vertical direction on the outdoor side of the opening, a pulling device 1 is connected to the upper frame 4, and a tensioning device 2 disposed diagonally is connected between the support 3 and the pulling device 1. The sash frames 4, 5, and 6 are usually pulled out from the center in the longitudinal direction as shown by the arrows in the figure, and if necessary, a crowbar or the like can be inserted into the gap to facilitate the work.

FIGS. 2 and 3 show a device for removing the upper frame 4 and how it is used.

The extraction jig 1 is constructed by attaching two opposing extraction plates 9 to a connecting shaft 8 so that the interval can be adjusted freely.
It is adapted to be engaged with a rising piece 4a formed in a lip shape. In the figure, reference numeral 10 denotes a position fixing screw for fixing the pull-out plate 9 to the connecting shaft 8. In addition, each pull-out plate 9 has a hook fixing screw 1.
1 is attached, and the head of the hook 12 of the tensioning device 2, which will be described later, is biased toward the side away from the support to prevent the hook 12 from shifting and swinging, and the sash frame 4 is held in one direction in its expected width direction. It can be pulled out from one side to the other with less force.

As the pulling device 2, a chain block or the like shown in the figure can be used, and the upper frame 4 is pulled out by pulling the pulling jig 1 by operating the handle 14. A hook 12 is provided at the upper end of this tensioning device 2, and a hook 13 is provided at the lower end, and the locking piece 16 of the connecting tool 15 fixed around the support 3 using bolts 15a is connected to the pulling jig 1. The shaft 8 is connected diagonally to the sash surface. The lower end hook 13 is locked to the locking piece 16 as close to the support 3 as possible to prevent unnecessary bending force from being applied to the connector 15 and the support 3.

The length of the support 3 is adjustable, and a wedge 7 or the like is interposed between the support 3 and the frame A, if necessary.

In this state, by operating the tensioning device 2, the upper frame 4 is pulled diagonally, and as shown in FIG. 3, the upper frame 4 is peeled off and pulled out from the indoor side toward the outdoor side.

4 and 5 show how the vertical frame 6 is pulled out. In this example, two
The positioning ring 25 provided at one end of the connecting shaft 22 is used to adjust the interval between the two pullout plates 23.
Fix it at 4. In addition, in the case of the vertical frame 6, there is often no lockable part such as the rising piece 4a of the upper frame 4, so it is necessary to provide a notch or use a pulling jig using screws 26 as shown in the figure. 1 and the vertical frame 6 are connected. In this case as well, as shown in FIG. 5, a pulling force is applied diagonally, so that the vertical frame 6 is pulled out from the indoor side toward the outdoor side.

The case where the support 3 is installed outside the room has been explained above, but if there is space for installing the support 3 inside the room, it is also possible to install the support 3 inside the room and perform the work. . Further, the shape of the extraction jigs 1 and 1' may be appropriately selected according to the shape of the sash frame.

Effects of the Invention Since the support is installed only on either the indoor side or the outdoor side of the frame opening, it is possible to install the device and pull out the sash frame in a limited space.

A pair of left and right hook fixing screws that fix the position of the hook that is locked to the connecting shaft can be used to hold the hook of the tensioning device away from the support, thereby establishing the point of application of the tension force applied to the extraction jig. The sash frame is biased toward the side away from the support, and a pulling force is applied diagonally to the sash frame surface, and the sash frame is peeled off from one side to the other in the expected width direction. The sash frame can be removed with a smaller pulling force than when pulling it out directly, and damage to the frame can be minimized.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device according to the embodiment of the present invention as seen from the outdoor side, Figs. 2 and 3 are longitudinal sectional views showing how the upper frame is pulled out, and Figs. 4 and 5 are vertical sectional views of the vertical frame. It is a longitudinal cross-sectional view showing how to pull out. 1... Pulling jig, 2... Tensioning device, 3...
Support, 4...Upper frame, 5...Lower frame, 6...Vertical frame, 7...Wedge, 8...Connection shaft, 9...Pull-out plate, 10...Screw for position fixing, 11...Hook fixation screw, 12... hook, 13... hook, 1
4... Handle, 15... Connector, 16... Locking piece, 17... Draining plate, 18... Pulling plate, 19
...Holding piece, 20...Tightening screw, 21...Screw for spacing, 22...Connecting shaft, 23...Drawing plate,
24... Positioning ring, 25... Position fixing screw, 26... Screw, 27... Hook fixing screw.

Claims (1)

[Scope of Claims] 1. A pull-out jig 1, which has a support 3 installed on either the outdoor side or the indoor side, and is connected to this support 3 via a tension device 2, and connected to the existing sash frame to be pulled out. By pulling the pulling jig 1 diagonally to the sash surface with the point of application of the tensile force applied to the side away from the support 3, the sash frame can be moved from one side to the other in its expected width direction. A method for removing an upper frame and a vertical frame of a satsushi, which is characterized in that the upper frame and vertical frame are pulled out. 2. A support 3 installed on either the outdoor side or the indoor side, a pulling jig 1 connected to the existing sash frame to be pulled out, one end connected to the support 3, and the hook 12 at the other end connected to the This is a sash removal device comprising a tensioning device 2 that locks onto a pulling jig 1 and tensions the sash diagonally with respect to the sash surface. At 8, two drawing plates 9 facing each other are attached so that the interval can be freely adjusted, and protruding from both drawing plates 9 in a direction perpendicular thereto, so that the position of the hook 12 is shifted away from the support 3. A device for removing an upper frame and a vertical frame of a sash, characterized in that a pair of left and right hook fixing screws 11 are provided for fixing the upper frame and vertical frame.