JPS6342064B2 - - 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, which is attached to an opening in a building frame and used when replacing it with a new sash. It is.

Background of the Invention and Prior Art Conventionally, steel sashes and the like have been widely used for openings in buildings. However, with the spread of aluminum sashes in recent years, the steel sashes installed in conventional buildings have heavy rust when opening and closing shoji doors, making it difficult to repair, poor sound insulation, and poor airtightness. It has been recognized that there are problems such as the appearance of the building being troublesome and the appearance of the building being poor.

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, as a method for removing such an existing sash, a method has been adopted in which the sash frame is successively pulled out in the in-plane direction using a chain block, hydraulic cylinder, or other tensioning device. However, in that case, the following conditions are required: no old sash frame remains, damage to the interior and exterior is minimized, and the extraction jig is simple and easy to operate. In addition, especially in small windows, the width of the opening in the vertical and horizontal directions is small, so it is desired to develop a method for efficiently pulling out windows in a limited space.

Purpose of the Invention The sash removal method of the present invention was invented under the above-mentioned circumstances, and is particularly suitable for removing a sash frame installed in a small opening. The purpose of the present invention is to provide a method for removing a sash that can be pulled out.

Structure of the Invention The present invention includes a plurality of supports installed between existing sash frames facing each other in an opening, a substrate supported by the supports and installed on the side from which the sash is pulled out, and a tension tensioner fixed to the substrate. A sash removal device is used, which is comprised of a hydraulic cylinder, such as a hydraulic or pneumatic cylinder, and a pull-out jig, which has one end connected to the tip of the fluid pressure cylinder and the other end connected to the sash frame to be pulled out. First, a fluid pressure cylinder integrated with the substrate is installed on the side of the sash frame from which the opening is to be pulled out, and the substrate portion is supported by a support that extends across the opening. Next, the tip of the extraction jig is connected to the sash frame to be extracted by locking, screwing, or welding, and the other end of the extraction jig is connected to the tip of the hydraulic cylinder via a chain or the like. In this state, by operating the fluid pressure cylinder and pulling the sash frame, the sash frame is pulled out from the center in the longitudinal direction. The sash can be removed by performing this work sequentially on the sash upper frame, lower sash frame, and left and right vertical frames.
Note that, if necessary, the extraction jig may be replaced with a extraction jig appropriate for the shape of the sash frame.

Embodiments Hereinafter, the present invention will be explained based on illustrated embodiments.

Figures 1 and 2 show how to remove the sash upper frame 5 using the removal device, Figure 3 shows how to remove the sash lower frame 6 after removing the upper frame 5, and Figure 4 shows how to remove the sash lower frame 6. 2 Cylinder holder for fixing 3
It shows 0.

When removing the upper frame 5, as shown in FIGS. 1 and 2, first install the fluid pressure cylinder 2 integrated with the base plate 3 on the upper frame 5 side on the outdoor side of the opening of the body A, and then connect both ends of the base plate 3. It is supported by a support 4 extending in the vertical direction of the opening.

The support 4 consists of a base rod 17 and an adjustment rod 18 inserted into the base rod 17. A pin 20 is inserted into a length adjustment hole 19 provided in the adjustment rod 18, and the length is further adjusted by a fine adjustment screw 21. Adjust the brightness. Note that 22 in the figure is a handle for fine adjustment. Further, a wedge 8 is interposed on the lower frame 6 side of the support 4.

Next, set the extraction jig 1 at the upper frame position 5,
It is connected to the connecting piece 16 at the tip of the fluid pressure cylinder 2. In this embodiment, a drawing jig 1 for the upper frame 5
is a connecting pin 9 which is connected to two opposite drawing plates 10 so as to be adjustable in the width direction, has one end locked to a connecting piece 16 of the fluid pressure cylinder 2, and has a hook 15 at the other end.
and a chain 14 that can be locked to the connecting pin 9. The tip of each pull-out plate 10 is formed in a hook shape, and the rising piece 5a of the upper frame 5 is formed in a lip shape.
It is designed to be locked in place. In addition, in the figure, 12 is a position fixing screw for fixing the pull-out plate 10 at a predetermined position of the connecting pin 9, and 13 is the two pull-out plates 1.
This is a spacing screw for maintaining a spacing of 0.

In this state, when the fluid pressure cylinder 2 is operated and the extraction jig 1 is pulled downward, the upper frame 5 is pulled out so as to be peeled off from the center in the longitudinal direction.

In the figure, reference numeral 30 denotes a cylinder holder for fixing the fluid pressure cylinder 2, which prevents the fluid pressure cylinder 2 from falling toward the indoor side where the extraction jig 1 is located when the fluid pressure cylinder 2 is operated. As shown in FIG. 4, this cylinder holder 30 includes a base piece 31 provided with a curved part for holding the fluid pressure cylinder 2 in the center;
It consists of semicircular parts at both ends of the base piece 31 and semicircular tightening pieces 32 facing each other, and is fixed to the support 4 with a tightening bolt 33, and supports the fluid pressure cylinder 2 while spanning between the supports 4. ing.

When pulling out the sash lower frame 6, as shown in Fig. 3, install the fluid pressure cylinder 2 integrated with the board 3 on the lower frame 6 side, support both ends of the board 3 with the supports 4, and then lift it up. Compared to when the frame 5 is pulled out, the frame 5 is rotated by 180 degrees.

Next, the pull-out plate 2 of the pull-out jig 1' for the lower frame 6 is
The other end of the chain 14 connected via the U-shaped connector 28 and the locking pin 29 is connected to the hydraulic cylinder 2. It is locked to the connecting piece 16. By operating the fluid pressure cylinder 2 in this state, the lower frame 6 is pulled out so as to be peeled off from the center in the longitudinal direction. In the figure, 26 is a tightening screw for clamping the rising portion of the lower frame between the pull-out plate 23 and the clamping piece 25 of the pull-out jig 1', and 27 is a gap-maintaining screw.

To pull out the left and right vertical frames 7, install the fluid pressure cylinder 2 on the side to be pulled out in the same way, and use the extraction jig for the vertical frame 7 to remove the connecting piece 16 at the tip of the fluid pressure cylinder 2.
and the vertical frame 7, and are pulled out by operating the fluid pressure cylinder 2. In addition, in the case of the vertical frame 7, there are often no parts that can be locked, such as the rising pieces 5a or the folded pieces 6a of the upper frame 5 and lower frame 6. In that case, screw holes are drilled in the vertical frame 7. It can be connected to the tip of the extraction jig with screws or by welding.

Note that the procedure is often to first pull out the upper frame 5, then to pull out the lower frame 6, and finally to pull out the left and right vertical frames 7. In addition, because the existing steel sash is usually insufficient for rain protection, the lower frame 6
is corroded and is often pulled out with relatively little force.

Effects of the Invention Since the fluid pressure cylinder that pulls the extraction jig is installed on the side of the sash frame that is to be extracted, it can be used for removing sashes from small windows. In other words, it can be applied as long as the opening width is equal to or larger than the hydraulic cylinder and its stroke.

[Brief explanation of the drawing]

Fig. 1 is a front view of the entire device used in this invention viewed from the outdoor side, Fig. 2 is a vertical sectional view of the opening showing how the upper frame is pulled out, and Fig. 3 shows how the lower frame is pulled out. FIG. 4 is a longitudinal cross-sectional view showing how the cylinder holder is attached. 1... Pulling jig, 2... Fluid pressure cylinder,
3... Board, 4... Support, 5... Upper frame, 6...
... lower frame, 7 ... vertical frame, 8 ... wedge, 9 ... connection pin, 10 ... pull-out plate, 11 ... tip locking part,
12... Screw for position fixing, 13... Screw for maintaining spacing, 14... Chain, 15... Hook, 16...
...Connecting piece, 17... Base rod, 18... Adjustment rod, 19
... Length adjustment hole, 20 ... Pin, 21 ... Fine adjustment screw, 22 ... Fine adjustment handle, 23 ... Pulling plate, 24 ... Tip locking part, 25 ... Clamping piece,
26...Tightening screw, 27...Screw for spacing, 2
8... U-shaped connector, 29... Locking pin, 30...
... Cylinder holder, 31 ... Base piece, 32 ... Tightening piece, 33 ... Tightening bolt.

Claims (1)

[Claims] 1 Install a fluid pressure cylinder 2 and a pull-out jig 1 and support 4 connected to the fluid pressure cylinder 2 between the existing sash frames facing each other at the opening, and use the pull-out jig 1 to sequentially remove the existing sash frames. In the removal method, a fluid pressure cylinder 2 integrated with the substrate 3 is placed on the side of the sash frame from which the opening is to be pulled out.
, the substrate 3 is supported by a plurality of supports 4 extending across the opening, and the tip of the extraction jig 1 attached to the tip of the fluid pressure cylinder 2 is connected to the sash frame to be extracted, A method for removing a sash, characterized in that the sash frame is pulled out by operating the fluid pressure cylinder 2.