JPS6315507Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a window frame removal device for removing an old window frame when renovating a window.

Prior Art There are two methods for renovating old window frames in existing buildings. One is to remove the existing window frame and install a new window frame, and the other is to leave the existing window frame and install a new window frame. Traditionally, the former is used to remove old window frames.
The area around the opening in the wall of the building had to be destroyed. As a result, the work was extensive, took a long time, and required a great deal of labor and time. The latter method was invented to eliminate these drawbacks. However, with this method of attaching a new window frame to an old window frame, the old window frame is already old and corroded, and the entire outer periphery of the window frame is not held and fixed in the wall opening. Since it is fixed to the old window frame in several places using small pieces of mounting members, it cannot necessarily be said that the strength is sufficient. Also, of course, the new window frame is inside the old window frame, so compared to the old window frame,
It had the disadvantage that it had to be a slightly smaller window.

Therefore, if the old window frame can be easily removed, it is desirable to install a new window frame in the wall opening after removing the old window frame.

Purpose of the present invention The present invention was made in view of the current situation, and the purpose is to provide a window frame removal device that can easily remove an old window frame from an opening in a wall of a building. .

Summary of the Invention This invention involves attaching the X-shaped frame to a wall opening by placing the tip of each arm of the X-shaped frame against the wall at the four corners of the wall opening to which the old window frame is attached, and pressing a fastener that is freely movable into a long hole in the arm against the corner of the window opening and fixing it with a nut, and then having a chain or wire pulled by a pulling means attached to the X-shaped frame, and having the tip of the X-shaped frame fixed to one of the frames of the window frame with a pulling metal fitting, and pulling the chain or wire allows the frame to be pulled and removed from the wall opening.

Configuration of the embodiment The illustrated embodiment has an upper frame 1, a lower frame 2, and vertical frames 3, 3.
It is for removing. FIG. 1 is a view of the present embodiment installed as seen from the indoor side. The tips of the windows are placed from the indoor side against the wall surface portions at the four corners of the wall opening to which the window frame is attached, and fixed with fixtures 8, which will be described later, attached to each tip. There is no harm in applying it from outside the room. FIGS. 5 and 6 are enlarged views of the tips of the arms of this X-shaped frame 6. A long hole 7 is provided at the tip of the arm 4, and a fixture 8 is attached with a nut 9 so as to be movable along the long hole 7. This fixture 8 has two surfaces 8a and 8b that contact orthogonal corners of the wall opening 10, and a bolt 8c is erected. This bolt 8
c is inserted into the elongated hole 7, the surfaces 8a and 8b are brought into contact with the orthogonal corner surfaces of the wall opening 10, and the nut 9 is tightened and fixed. Tighten the nuts in the same way for each arm 4, 4... and attach the entire X-shaped frame 6 to the wall opening 10.
Attach to.

The base 5 has at least one plane part 5a,
A rotary plate 11 is rotatably attached to this flat portion 5a. A pulling means for pulling a wire 13 having a tension fitting 12 attached to its tip is attached to the rotary plate 11. The wire 13 may be a chain as described above, or any other string-like material such as a rope with sufficient strength may be used.

The pulling means in this embodiment is the wire 13
The drum 14, which is wrapped around the drum 14, is rotated by swinging the handle 15. The handle 15 faces indoors and can be operated indoors. Of course, the wire 13 may be pulled directly by a hydraulic cylinder, or the drum 14 may be rotated by a motor. In this embodiment, as described above, a ratchet mechanism 16 is provided at the tip of the handle 15, which changes the rotation in a fixed direction and rotates the shaft 17. The shaft 17 has a ratchet gear 18 for regulating rotation in the opposite direction.
And a worm 19 is attached. A worm gear 20 is engaged with the worm 19, and the worm gear 20 changes the rotation to a plane parallel to the rotating plate 11. The drum 14 is configured to rotate together with the worm gear 20. Note that 21 is a bearing.

The tension fittings 12 may be of any type as long as they can be fixedly attached to each frame of the window frame. Most preferably, it can be used commonly for each frame, but if the cross-sectional shapes of the frames are completely different, it is desirable to be able to exchange it so that it matches each frame.

Effects of the Embodiment An X-shaped frame 6 is placed in a wall opening 10 having a window frame to be removed consisting of an upper frame 1, a lower frame 2, and vertical frames 3, with the tips of its arms 4, 4... A fixture 8 provided on an arm is applied to the wall surface at the four corners of the window opening from the outside, and is pressed against each corner of the wall opening 10 and fixed with a nut 9 for installation. A rotating plate 11 is rotatably attached to the base 5 at the center of the X-shaped frame 6, and a pulling means is provided on the rotating plate 11.
Place the end of the wire 13 in a position facing the frame to be removed (for example, the upper frame 1), remove the pawl (not shown) of the ratchet mechanism, rotate the drum, stretch the wire 13, and attach the tension fitting 12 at the tip to the upper frame 1. Attach to. Then, engage the claw of the ratchet mechanism and tighten the handle 1.
When the worm 5 is swung, the shaft 17 rotates and the worm 1
A worm gear 20 rotates via 9. Therefore, the drum 14 also rotates and draws the wire 13 together. A tension fitting 12 is attached to the tip of the wire 13 and is fixed to the upper frame 1, so that
The upper frame 1 is pulled, and finally the part embedded in the wall opening is pulled out and pulled out. At the same time, the upper ends of the vertical frames 3, 3 are also pulled out. Tension fitting 12
is removed from the upper frame 1 and fixed to the pulled-out end of the vertical frame 3, and when the handle 15 is similarly rocked, the vertical frame 3 is further pulled out to the bottom. Do the same for the other vertical frame 3. Finally, when the tension fitting 12 is fixed to the lower frame 2 and the handle 15 is swung, the lower frame 2 comes off and the entire window frame can be removed.

Modified Example of Embodiment In this embodiment, a rotary plate 11 is mounted on the base 5.
is attached rotatably and a pulling means is attached thereon, but as in this embodiment, the drum 1
When winding a wire around 4, the wire itself can be rotated freely and the direction of its tip can be changed, so it can be freely rotated without using a rotating plate.

On the other hand, when drawing the wire 13 using hydraulic pressure or an air cylinder, the rotary plate 11
Without it, it cannot rotate freely.

In this embodiment, for double protection, a ratchet gear 18 is used in addition to the ratchet mechanism 16 to prevent reverse rotation.
is not necessary.

Further, the positional relationship between the drum 14 and the worm gear 20 can be changed arbitrarily.

Effects of the invention As described above, with this invention, all the frames can be removed by simply rotating the pulling means while the X-shaped frame is attached to the wall opening, making it easy to remove the window frame. becomes.

In addition, the present invention uses an X-shaped frame and is attached with its tip in contact with the four corners of the wall opening, so the load applied when removing the frame is dispersed.
Since the force applied to the wall surface of the wall opening is reduced, there is less risk of damage to this part.

Furthermore, the X-shaped frame of the present invention can be fixed to the window frame by using a fixing device that is movable along long holes provided in each arm of the frame, which is placed against the corner of the window opening and fixed with a nut. This allows the X-shaped frame to be attached stably and easily.

[Brief explanation of the drawing]

Fig. 1 is a front view of this embodiment installed in a wall opening and seen from the indoor side, Fig. 2 is a central sectional view of Fig. 1, Fig. 3 is a side view of the pulling means, and Fig. 4 is a drawing means. FIG. 5 is an enlarged front view of the end of the arm of the X-shaped frame. FIG. 6 is a sectional view. 1...Top frame, 2...Bottom frame, 3...Vertical frame, 4...
Arm, 5... Base, 6... X-shaped frame, 7... Elongated hole, 8... Fixture, 11... Rotating plate, 12... Tension fitting, 13... Wire, 14... Drum, 1
5...Pattern.

Claims (1)

[Scope of utility model registration request] An X-shaped frame having four arms and applying the tip of each arm from indoors or outdoors to the wall surface of the four corners of the wall opening of the building where the old window frame is attached;
a long hole formed at each tip of the X-shaped frame;
a fixture movable along the elongated hole and fixed in position with a nut, a base attached to the central portion of the X-shaped frame, and a chain or wire pulling means attached to the base; A window frame removal device characterized by having a tension fitting attached to the tip of a chain or wire, fixed to any frame of an old window frame, and pulling the frame in response to pulling by a pulling means of the chain or wire. Device.