JPH041154B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an old window frame removing device.

(Prior art) Conventionally, when replacing an old window frame made of wood, iron, or old aluminum with a new window frame made of aluminum, the old window frame was pulled out using a tensioning device, and then the new window frame was replaced. A method was used to install it.
In this case, a chain block or the like is used as the tensioning means, and the chain block is stretched between the upper and lower or left and right opposing frames, and the opposing frames are simultaneously pulled and removed, or the frames that are to be pulled and removed are A U-shaped frame was provided correspondingly, and tension screws were provided on the beams of the frame, and the frame legs were used to press against the wall and the tension screws were used to pull and remove the frame.

When simultaneously pulling and removing the opposing frames, if the adhesion of one frame is stronger than the other, it is inconvenient that only the frame with the weaker adhesion can be removed by tension. Also, when using a U-shaped frame,
A tensioning device had to be set for each frame to be removed, and the moment the frame was removed from the wall, the frame would lose its holding means and could fall together with the frame, which was dangerous. . For this reason, a method has already been proposed in which a tensioning means is held within the window space and only one side of the window frame is tensioned and removed (see FIG. 5 of JP-A-57-9979).

(Problem to be Solved by the Invention) The old window frame removing device described in the above-mentioned Japanese Patent Application Laid-Open No. 57-9979 has a strut provided in a tsuppari shape between the inner peripheral surfaces of the window opening, and a tensioning means is attached to the strut. It was set up. The inner circumferential surface of the window opening, which engages both ends of the support, is very narrow, so the support cannot be made large. Therefore, in this conventional device, columns were provided on both the indoor and outdoor sides, and the tension means had to be held by the two columns.

That is, in the conventional type, the pillars are thin and weak in strength, and if there is not enough space to lock the pillars on the inner circumferential surface of the window opening, there is a problem that the pillars cannot be used anymore.

In addition, in the conventional method, the pulling direction of the pulling means was unique, so after pulling out and removing one side,
In order to pull out the other side, it was necessary to set it up again, which was a tedious task.

Therefore, the present invention can ensure sufficient strength of the support pillar, and by providing the support support independently on the indoor side, it can be used even if the width of the inner peripheral surface of the window opening is narrow. Another object of the present invention is to provide an old window frame removing device which is safe to work with and can pull out the window frames on two sides once set.

(Means for Solving the Problems) The present invention takes the following technical measures in order to achieve the above object in an apparatus for removing old window frames from a building base by a tensioning means.

That is, in the present invention, a support is erected on the floor surface on the indoor side, and the upper end of the support comes into contact with the inner circumferential surface of the window opening and the side surface of the room, so that the support supports stand on the indoor side. A support arm protruding into the window space is provided in a cantilevered manner midway in the vertical direction of the pillar, and the support arm is provided with an elongated hole in the indoor-outdoor direction, and the elongated hole is provided with the tensioner. The tensioning means is installed such that the position thereof can be changed in the vertical direction and is movable in the indoor and outdoor directions, and the tensioning means is constituted by a fluid pressure cylinder that can be expanded and contracted by fluid pressure, and the tensioning means is configured to have an operation control for expanding and contracting the fluid pressure cylinder. The feature is that a fluid pressure pump for use is provided on the floor surface on the indoor side.

(Function) According to the present invention, first, the support column is erected on the floor surface on the indoor side. By bringing the upper end of the support into contact with the inner circumferential surface of the window opening and the indoor side surface, the support becomes independent on the indoor side. In this way, the pillars are independent of the width of the window opening, so they can be thick, large, and have excellent strength. And since the support is installed on the indoor side, it will not fall outside through the window, making it safe.

Then, the upper side of the old window frame is pulled out by the pulling means, and then the direction of the pulling means is changed and the lower side of the old window frame is pulled out. Since the tensioning means is provided on a support arm provided in a cantilevered manner on the column,
The direction of the tension means can be easily changed.

The pulling means is a fluid pressure cylinder that can be expanded and contracted using fluid pressure, and when pulling out the old window frame, it is pulled out linearly, and the pulling force is adjusted by controlling the operation of a fluid pressure pump installed on the floor inside the room. It is safe because its operation and control are performed indoors. In addition, since the fluid pressure cylinder is movably attached to the support arm through a long hole in the indoor and outdoor directions, its position can be set accurately relative to the old window frame without having to remove it each time. .

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

What is shown in FIGS. 1 and 2 is a first embodiment of the present invention, in which reference numeral 1 denotes a building base, which is illustrated as a wall. An old window frame 2 is buried in this building base 1. On the indoor side A of the building, a support 3 is erected along the base 1 so as to vertically cross the window space S. The support column 3 is made of a pipe, and has a double-tube structure consisting of a large-diameter column 4 and a small-diameter column 5, and is expandable and retractable. The lower end of the lower large-diameter column 4 is placed on the floor surface, and the small-diameter column 5 and large-diameter column 4 inserted into the upper end of the large-diameter column 4 have a large number of screws inserted at a fixed pitch on each other's sides. By aligning the holes 6 and inserting bolts, pins, etc. into the holes 6, they are connected and fixed in a flexible manner. A bracket 7 projecting toward the outside B is attached to the upper end of the small diameter column 5. A screw rod 8 that penetrates vertically is screwed into this bracket 7, and the upper end of the screw rod 8 is connected to the base 1 through a plate 9.
It is in contact with the upper edge of. Thus, the support column 3 is held between the upper edge of the base 1 and the floor surface by the pressing force of the screw rod 8. That is, the support column 3 is provided independently on the indoor side.

A support arm 10 is attached to the small diameter column 5 so as to protrude in the outdoor B direction, and the support arm 10 can be vertically adjusted by being attached to any screw insertion hole 6 of the small diameter column 5 via a bolt. becomes. This support arm 10 has left and right opposing wall portions 11, and a horizontal elongated hole 12 is provided in the wall portion 11. A hydraulic hydraulic cylinder 13 serving as a tensioning means is provided between the left and right opposing wall portions 11.
A boss portion 14 protruding in the radial direction on both sides of the cylinder 13 is fitted into the elongated hole 12 so as to be rotatable and movable in the interior and exterior directions. A chain 16 or a wire is connected to the tip of the piston 15 of this fluid pressure cylinder, and a hook 17 at the tip of the chain 16 is removably engaged with the old frame 2.

Reference numeral 18 denotes a fluid pressure pump, a manual pump being exemplified, and the pump 18 and the fluid pressure cylinder 13
are connected to each other via a hydraulic piping 19, and the fluid pressure pump 18 is installed on the floor on the indoor side and is connected to the fluid pressure cylinder 13 via the piping 19 by operating a manual lever.
is applied to control the pulling force, etc.

In the figure, reference numeral 20 denotes a beam, which is fixed to the upper surface of the support arm 10, and its both ends are in tension-like contact with both side edges of the base 1 to prevent the column 3 from overturning. In one embodiment, this is not necessary.

According to the first embodiment of the present invention, the upper and lower old frames 2a and 2b can be pulled and removed, and the support column 3 can be made to stand on its own on the indoor side, and as shown by the solid line in FIG. Pressure cylinder 13
By lowering the piston 15 of the old lower frame 2b, hooking the hook 17 to the lower frame body 2b, and reducing the piston 15 by operating the fluid pressure pump 18, the old lower frame 2b is
can be pulled and removed from the base 1. In addition, as shown by the imaginary line in FIG. 2, the fluid pressure cylinder 1
3 upward, and attach the piston 1 to the old upper frame body 2a.
5 facing each other and locking the hook to the upper frame body 2a, the upper frame body 2a can be pulled and removed.

During the above-mentioned tensioning work, the fluid pressure cylinder 13 is reliably and firmly held in the window space by the support arm 10 and the column 3. Moreover, since the support column 3 is expandable and retractable, it can be used even if the windows have different sizes. Further, since the support column 3 is placed on the floor surface, the base 1 is not damaged and can be stably erected. The fluid pressure cylinder 13 has a long hole 12
Therefore, even if the thickness of the base 1 changes, the fluid pressure cylinder 13 can be placed at the center of the frame 2, and the tensile force does not decrease.

What is shown in FIG. 3 is a second embodiment of the invention. The support arm 10 includes a fixed part 21 attached to the support column 3, and a rotating part 23 rotatably connected to the fixed part 21 via a support shaft 22.
A bracket 24 into which a beam 20 is fitted is protruded from the side surface of the fixed portion 21, and the beam 20 which horizontally crosses the window space S is attached to the bracket 24. Further, the fixed part 21 is provided with at least two positioning pieces 25 that are orthogonal to each other, and corresponding to the positioning pieces 25, the rotating part 23 is also provided with a positioning piece 26, and a pin 27 is attached to both positioning pieces 25, 26. By inserting the rotating part 23, the rotating part 23 can be positioned and fixed to the fixing part 21 at every 90 degrees.

According to the second embodiment of the present invention, the fluid pressure cylinder 13 is positioned around the support shaft 22 at every 90°, and furthermore, the fluid pressure cylinder 13 rotates around the boss portion 14 through the elongated hole 12. Since it moves, the piston 15 of the fluid pressure cylinder 13 can be opposed to the upper, lower, left and right frames, respectively, and all the frames can be pulled out and removed in one set. Further, since the support 3 and the beam 20 are in contact with the edge of the base 1, the base 1 is prevented from falling off when the frame is pulled, and subsequent curing work is simplified.

Note that the fluid pressure cylinder of the present invention may be one in which pistons that operate independently are provided at both ends to simultaneously pull the opposing frames. Since it is supported by the provided struts, both frames can be pulled and removed even if one of the frames has a strong adhesion force.

(Effects of the Invention) According to the present invention, since the support is provided independently on the indoor side, its strength is increased, and the tension means can be held stably and reliably within the window space. We guarantee the safety of your work.

In addition, the tension means is a fluid pressure cylinder that can be expanded and contracted using fluid pressure, and the fluid pressure pump that operates and controls the cylinder is installed on the floor on the indoor side. This makes it possible to safely control the pulling force by means of a hydraulic cylinder, which is particularly advantageous when pulling out old window frames on floors.

In addition, the fluid pressure cylinder is movably attached to a support arm that is cantilever-supported on a column provided independently on the indoor side through a long hole in the indoor/outdoor direction, so that the position of the old window frame may shift between indoors and outdoors. Even if the old window frame is old, the hydraulic cylinder can be correctly set in the old window frame without having to remove it each time.

Therefore, the present invention has excellent safety and workability, and exhibits great effects in practical use.

[Brief explanation of drawings]

1 is a front view showing a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the window in FIG. 1, and FIG. 3 is an exploded perspective view of the second embodiment of the invention. 1...Building base, 2...Window frame, 3...Column, 13...
Tension means (fluid pressure cylinder), S...window space.

Claims (1)

[Claims] 1. The old window frame 2 is attached to the building base 1 by the tensioning means 13.
In this device, a support 3 is erected on the floor surface of the indoor side A, and the upper end of the support 3 comes into contact with the inner circumferential surface of the window opening and the indoor side surface, so that the support 3 is removed from the room. A support arm 10 is provided independently on the inside A, and is provided in a cantilevered manner midway in the vertical direction of the pillar 3 to protrude into the window space S. The support arm 10 is provided with an elongated hole 12 in the indoor/outdoor direction.
is provided in the elongated hole 12, and the tension means 13 is attached to the elongated hole 12 so as to be able to change its position in the vertical direction and to move freely in the indoor and outdoor directions, and the tension means 13 is a fluid pressure cylinder that can be expanded and contracted by fluid pressure. An old window frame removing device characterized in that a fluid pressure pump 18 for operation control for expanding and contracting the fluid pressure cylinder is provided on the floor surface of the indoor side A.