JPH0120459Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is used to remove existing sash frames attached to openings in buildings, and is particularly suitable for removing sash frames that have small width and height dimensions at the opening. This invention relates to a sash frame removal device suitable for removal.

(Prior art) As an example of a method for renovating the sash frame of a window, etc., it is possible to leave the existing sash frame as it is,
Some say that a new sash frame that is formed to cover this sash frame can be installed as a new sash frame, but with this double structure, the opening width of the window will be smaller than the existing one. It has the disadvantage of becoming.

Therefore, since it is desirable to install a new sash frame after removing the existing sash frame, a device for removing the existing sash frame is required.

Therefore, in the past, there has been a device as shown in FIG. 1, for example, as a device for removing an existing sash frame.

That is, this removal device 1
The sash frame 2 is removed from the opening 3 by pulling opposing parts of the sash frame 2 toward each other and bending the sash frame 2 with this tensile force. The lower end of the cylinder 4 is locked to the lower frame 2a of the sash frame 2, and a chain 5 is provided on the upper end of the cylinder 4, and a hook 6 is provided at the end of the chain 5. Hook 6
is installed in a locked state to the upper frame 2b of the sash frame 2.

By driving the cylinder 4 in the direction of contraction, the upper frame 2b and the lower frame 2a are drawn to each other, and this tensile force deforms the sash frame 2 inward. .

However, since the sash frame removing device 1 as described above is used with the device itself installed inside the sash frame 2,
There was a problem in that there was a limit to the size of the opening 3 that could be used, and that it was impossible to use it for removing the sash frame from a window with a particularly small opening.

(Purpose of the invention) This invention was made by focusing on the problems of the conventional methods as described above, and it is a sash frame that can be easily removed even if it is an existing sash frame for a window with a small opening size. The purpose is to provide a removal device.

(Structure of the invention) The structure of the sash frame removal device according to this invention is that one end of a long rod member is rotatably connected to each other, and the other end of the rod member is opened in a V-shape. The parts are connected with a telescopic traction device,
The present invention is characterized in that a locking portion to the sash frame is provided at an intermediate position of each of the rod members.

(Example) This invention will be explained below based on the drawings.

FIGS. 2 and 3 are diagrams illustrating an embodiment of this invention.

That is, this removal device 10 includes two elongated rod members 11 and 12 that have approximately the same shape;
It is composed of a hydraulic cylinder 13 which is a telescopic traction device.

The rod members 11 and 12 are rotatably connected to each other at one end by a shaft 14, and each rod member 11 and 12 has a shackle 15 and 15 serving as a locking portion at the same position from the shaft 14. It is installed.

When attaching this shackle 15, two pairs of shackle attachment holes 11a, 11b, 12 are provided at equal positions from the shaft 14 of each rod member 11, 12.
a and 12b are formed, so that the mounting position can be selected according to the opening size of the steel sash frame 17.

Further, the hydraulic cylinder 13 is connected to the other end of one rod member 11 via an appropriate number of shackle 16 at one end thereof, and further has an appropriate number of shackle 16 at the other end. It is connected to the other end of the other rod member 12 via the other end.

Note that the shackle 15 constituting the locking portion and the shackle 16 connected to the hydraulic cylinder 13
The number can be increased or decreased so that it can be adjusted according to the opening size of the sash frame 17.

Furthermore, 18 in FIG. 2 is a tube that transmits hydraulic pressure to the hydraulic cylinder 13, and is connected to a pump side (not shown).

Further, in this embodiment, a hook 19 is used to lock the shackle 15, which is a locking portion, to the sash frame 17.

As shown in each figure, the hook 19 is used to remove the sash frame 17, which has a shape that is difficult to lock, and has an L-shaped cross section. It is fixed to the sash frame 17, and a locking hole 19a is formed in the other piece.

To remove the steel sash frame 17 using the removal device 10 having the above structure, first, one end of the connected rod members 11 and 12 is passed through the sash frame 17, and one of the rod members 11 is removed. The shackle 15, which is a locking portion, is locked to a hook 19 fixed to the upper frame 17a, and then the shackle 15, which is a locking portion of the other rod member 12, is locked to a hook 19 fixed to the bottom frame 17b. do.

After this, the hydraulic cylinder 13 is attached to the rod members 11 and 1.
If connected to the other end of 2 and driven in the direction of contraction (in the direction of the arrow in FIG. 2), each rod member 11, 1
2 connects the upper frame 1 to the upper frame 1 through shafts 15, 15, which are respective locking parts, using the shaft 14 of the rotational connection part of both as a fulcrum.
7a and the lower frame 17b and draw the upper frame 17a and the lower frame 17b toward each other, the upper frame 17a and the lower frame 17b are peeled off from the wall portion 21.

In addition, in the above embodiment, the removal device 1
0 is locked to the upper frame 17a and lower frame 17b of the sash frame 17, but of course it is also possible to remove the pair of vertical frames 20, and in this case, the two rod members 11, 12 becomes horizontal.

Further, in the above embodiment, a case has been described in which the hook 19 is fixed in advance to the sash frame 17 side, but when the frame material has a cross-sectional shape (for example, a hook portion) that can be locked, the frame material It is also possible to provide a structure in which a hook of an appropriate shape that can be directly locked to the locking part is provided.

Further, in the above embodiment, the hydraulic cylinder 13 is used as the telescopic traction device, but a chain block, lever block, etc. may also be used.

(Effects of the invention) As explained above, according to the sash frame removal device of this invention, one end of the elongated rod member is rotatably connected, and the ends of the long rod member are opened in a V-shape. The other ends of the rod members are connected to each other by a telescopic traction device, and locking portions to the sash frame are provided at intermediate positions of each rod member.
Even if the opening size of the existing steel sash frame is small, the sash frame can be removed using this removal device.Moreover, since it is a device that uses the principle of leverage, the traction device can be directly attached to the sash frame. It has the excellent effect of being able to remove the sash frame with a smaller driving force than the conventional removal device which pulls the sash frame by pulling it.

[Brief explanation of the drawing]

Fig. 1 is a front view illustrating the structure of a conventional sash frame removing device, Fig. 2 is a side view illustrating a sash frame removing device based on an embodiment of this invention, and Fig. 3 is a hook fixed to the sash frame. It is a perspective view of the upper frame explaining a tool. 10... Removal device, 11, 12... Rod member, 13... Hydraulic cylinder (traction device), 15...
...shackle (locking part), 17...sash frame.

Claims (1)

[Scope of utility model registration request] One ends of the elongated rod members are rotatably connected to each other, and the other ends of the rod members opened in a V-shape are connected to each other by a telescopic traction device, and each of the rod members is A sash frame removal device characterized in that a locking portion for the sash frame is provided at an intermediate position of the sash frame.